WorldWideScience

Sample records for network-enabled commercial airplane

  1. Commercial Pilot Airplane Written Test Guide. Revised Edition.

    Science.gov (United States)

    Federal Aviation Administration (DOT), Washington, DC. Flight Standards Service.

    This guide is intended to help applicants prepare for the Commercial Airplane Pilot Written Test. The guide outlines the aeronautical knowledge requirements for a commercial pilot, informs the applicant of source material that can be used to acquire their knowledge, and includes test items and illustrations representative of those used in the…

  2. Exposure to flame retardant chemicals on commercial airplanes.

    Science.gov (United States)

    Allen, Joseph G; Stapleton, Heather M; Vallarino, Jose; McNeely, Eileen; McClean, Michael D; Harrad, Stuart J; Rauert, Cassandra B; Spengler, John D

    2013-02-16

    Flame retardant chemicals are used in materials on airplanes to slow the propagation of fire. These chemicals migrate from their source products and can be found in the dust of airplanes, creating the potential for exposure. To characterize exposure to flame retardant chemicals in airplane dust, we collected dust samples from locations inside 19 commercial airplanes parked overnight at airport gates. In addition, hand-wipe samples were also collected from 9 flight attendants and 1 passenger who had just taken a cross-country (USA) flight. The samples were analyzed for a suite of flame retardant chemicals. To identify the possible sources for the brominated flame retardants, we used a portable XRF analyzer to quantify bromine concentrations in materials inside the airplanes. A wide range of flame retardant compounds were detected in 100% of the dust samples collected from airplanes, including BDEs 47, 99, 153, 183 and 209, tris(1,3-dichloro-isopropyl)phosphate (TDCPP), hexabromocyclododecane (HBCD) and bis-(2-ethylhexyl)-tetrabromo-phthalate (TBPH). Airplane dust contained elevated concentrations of BDE 209 (GM: 500 ug/g; range: 2,600 ug/g) relative to other indoor environments, such as residential and commercial buildings, and the hands of participants after a cross-country flight contained elevated BDE 209 concentrations relative to the general population. TDCPP, a known carcinogen that was removed from use in children's pajamas in the 1970's although still used today in other consumer products, was detected on 100% of airplanes in concentrations similar to those found in residential and commercial locations. This study adds to the limited body of knowledge regarding exposure to flame retardants on commercial aircraft, an environment long hypothesized to be at risk for maximum exposures due to strict flame retardant standards for aircraft materials. Our findings indicate that flame retardants are widely used in many airplane components and all airplane types, as

  3. 14 CFR 121.517 - Flight time limitations: Other commercial flying: airplanes.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Flight time limitations: Other commercial flying: airplanes. 121.517 Section 121.517 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... Limitations: Supplemental Operations § 121.517 Flight time limitations: Other commercial flying: airplanes. No...

  4. Proton exchange membrane fuel cells for electrical power generation on-board commercial airplanes.

    Energy Technology Data Exchange (ETDEWEB)

    Curgus, Dita Brigitte; Munoz-Ramos, Karina (Sandia National Laboratories, Albuquerque, NM); Pratt, Joseph William; Akhil, Abbas Ali (Sandia National Laboratories, Albuquerque, NM); Klebanoff, Leonard E.; Schenkman, Benjamin L. (Sandia National Laboratories, Albuquerque, NM)

    2011-05-01

    Deployed on a commercial airplane, proton exchange membrane fuel cells may offer emissions reductions, thermal efficiency gains, and enable locating the power near the point of use. This work seeks to understand whether on-board fuel cell systems are technically feasible, and, if so, if they offer a performance advantage for the airplane as a whole. Through hardware analysis and thermodynamic and electrical simulation, we found that while adding a fuel cell system using today's technology for the PEM fuel cell and hydrogen storage is technically feasible, it will not likely give the airplane a performance benefit. However, when we re-did the analysis using DOE-target technology for the PEM fuel cell and hydrogen storage, we found that the fuel cell system would provide a performance benefit to the airplane (i.e., it can save the airplane some fuel), depending on the way it is configured.

  5. Proton Exchange Membrane Fuel Cells for Electrical Power Generation On-Board Commercial Airplanes

    Energy Technology Data Exchange (ETDEWEB)

    Pratt, Joesph W. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Klebanoff, Leonard E. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Munoz-Ramos, Karina [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Akhil, Abbas A. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Curgus, Dita B. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Schenkman, Benjamin L. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2011-05-01

    Deployed on a commercial airplane, proton exchange membrane fuel cells may offer emissions reductions, thermal efficiency gains, and enable locating the power near the point of use. This work seeks to understand whether on-board fuel cell systems are technically feasible, and, if so, if they offer a performance advantage for the airplane as a whole. Through hardware analysis and thermodynamic and electrical simulation, we found that while adding a fuel cell system using today’s technology for the PEM fuel cell and hydrogen storage is technically feasible, it will not likely give the airplane a performance benefit. However, when we re-did the analysis using DOE-target technology for the PEM fuel cell and hydrogen storage, we found that the fuel cell system would provide a performance benefit to the airplane (i.e., it can save the airplane some fuel), depending on the way it is configured.

  6. Commercial Pilot; Airplane. Flight Test Guide, Part 61 Revised, AC 61-55.

    Science.gov (United States)

    Federal Aviation Administration (DOT), Washington, DC. Flight Standards Service.

    This flight test guide assists the applicant and his instructor in preparing for the Commercial Pilot Certificate with Airplane Rating under Part 61 (revised) of Federal Aviation Regulations. It contains information concerning pilot operations, procedures, and maneuvers relevant to the flight test required for the certificate. Preflight duties,…

  7. ANALYSIS FOR AERODYNAMICS OF THE SIMPLIFIED MODEL OF A COMMERCIAL AIRPLANE CRUISING AT TRANSONIC SPEED

    Directory of Open Access Journals (Sweden)

    KIM YANGKYUN

    2010-12-01

    Full Text Available This paper describes the computational analysis and visualization of flow around the model of a commercial airplane, Boeing 747-400. The geometry was realized through reverse engineering technique based on the photo scanning measurement. The steady three-dimensional viscous compressible governing equations were solved in the unstructured grid system. The basic conditions for computation were chosen as the same to those of Boeing 747-400’s cruising state. The high Reynolds turbulence models are tried. The angle of attack is varied to investigate the effect of the flight conditions to the aerodynamic performance. And flow and aerodynamic characteristics due to the existence of winglet were compared.

  8. Nanosecond-level time synchronization of AERA using a beacon reference transmitter and commercial airplanes

    Directory of Open Access Journals (Sweden)

    Huege Tim

    2017-01-01

    Full Text Available Radio detection of cosmic-ray air showers requires time synchronization of detectors on a nanosecond level, especially for advanced reconstruction algorithms based on the wavefront curvature and for interferometric analysis approaches. At the Auger Engineering Radio Array, the distributed, autonomous detector stations are time-synchronized via the Global Positioning System which, however, does not provide sufficient timing accuracy. We thus employ a dedicated beacon reference transmitter to correct for eventby-event clock drifts in our offline data analysis. In an independent cross-check of this “beacon correction” using radio pulses emitted by commercial airplanes, we have shown that the combined timing accuracy of the two methods is better than 2 nanoseconds.

  9. Estimation of electromagnetic dosimetric values from non-ionizing radiofrequency fields in an indoor commercial airplane environment.

    Science.gov (United States)

    Aguirre, Erik; Arpón, Javier; Azpilicueta, Leire; López, Peio; de Miguel, Silvia; Ramos, Victoria; Falcone, Francisco

    2014-12-01

    In this article, the impact of topology as well as morphology of a complex indoor environment such as a commercial aircraft in the estimation of dosimetric assessment is presented. By means of an in-house developed deterministic 3D ray-launching code, estimation of electric field amplitude as a function of position for the complete volume of a commercial passenger airplane is obtained. Estimation of electromagnetic field exposure in this environment is challenging, due to the complexity and size of the scenario, as well as to the large metallic content, giving rise to strong multipath components. By performing the calculation with a deterministic technique, the complete scenario can be considered with an optimized balance between accuracy and computational cost. The proposed method can aid in the assessment of electromagnetic dosimetry in the future deployment of embarked wireless systems in commercial aircraft.

  10. Flatulence on airplanes

    DEFF Research Database (Denmark)

    Pommergaard, Hans C; Burcharth, Jakob; Fischer, Anders

    2013-01-01

    Flatus is natural and an invariable consequence of digestion, however at times it creates problems of social character due to sound and odour. This problem may be more significant on commercial airplanes where many people are seated in limited space and where changes in volume of intestinal gases...

  11. Flatulence on airplanes

    DEFF Research Database (Denmark)

    Pommergaard, Hans-Christian; Burcharth, Jakob; Fischer, Anders

    2013-01-01

    Flatus is natural and an invariable consequence of digestion, however at times it creates problems of social character due to sound and odour. This problem may be more significant on commercial airplanes where many people are seated in limited space and where changes in volume of intestinal gases...... airplanes, by using a methane breath test or to alter the fibre content of airline meals in order to reduce its flatulent potential. We conclude that the use of active charcoal on airlines may improve flight comfort for all passengers....

  12. 77 FR 24643 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-04-25

    ... airplanes. This proposed AD was prompted by a report of in-flight fracture of the right windshield (window 1... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM... Commercial Airplanes, Attention: Data & Services Management, P.O. Box 3707, MC 2H-65, Seattle, Washington...

  13. Why do airlines want and use thrust reversers? A compilation of airline industry responses to a survey regarding the use of thrust reversers on commercial transport airplanes

    Science.gov (United States)

    Yetter, Jeffrey A.

    1995-01-01

    Although thrust reversers are used for only a fraction of the airplane operating time, their impact on nacelle design, weight, airplane cruise performance, and overall airplane operating and maintenance expenses is significant. Why then do the airlines want and use thrust reversers? In an effort to understand the airlines need for thrust reversers, a survey of the airline industry was made to determine why and under what situations thrust reversers are currently used or thought to be needed. The survey was intended to help establish the cost/benefits trades for the use of thrust reversers and airline opinion regarding alternative deceleration devices. A compilation and summary of the responses given to the survey questionnaire is presented.

  14. Applied Knowledge Management to Mitigate Cognitive Load in Network-Enabled Mission Command

    Science.gov (United States)

    2017-11-22

    system performance is often referred to as the “brittleness problem of automata” (Hollnagel and Woods 2005). These cautions from the flight management ... perspectives . IEEE Int Sys. 2006;21(4):70–73. Leistner F. Managing organizational knowledge flow: how to make knowledge sharing work. Hoboken (NJ...ARL-TN-0859 ● NOV 2017 US Army Research Laboratory Applied Knowledge Management to Mitigate Cognitive Load in Network-Enabled

  15. 78 FR 20229 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-04-04

    ... Commercial Airplanes Group, Attention: Manager, Airline Support, email: [email protected] . The report...-917-6590; email: [email protected] . SUPPLEMENTARY INFORMATION: Discussion We issued a notice of... paragraphs (g) and (k) of this AD, to Boeing Commercial Airplanes Group, Attention: Manager, Airline Support...

  16. Case study of the development of a SANDF tactical data link network enabling capability [Journal article

    CSIR Research Space (South Africa)

    Smith

    2011-11-01

    Full Text Available stream_source_info Smith_2011_ABSTARCT ONLY.pdf.txt stream_content_type text/plain stream_size 5823 Content-Encoding ISO-8859-1 stream_name Smith_2011_ABSTARCT ONLY.pdf.txt Content-Type text/plain; charset=ISO-8859... SANDF TACTICAL DATA LINK NETWORK ENABLING CAPABILITY Corn? J. Smith and Jacobus P. Venter * Abstract. In the scope of Tactical Data Links (TDL), the South African National Defence Force (SANDF) started the journey to establish a national TDL...

  17. 76 FR 1979 - Airworthiness Directives; The Boeing Company Model 757 Airplanes

    Science.gov (United States)

    2011-01-12

    ... spin brake assembly in accordance with the Boeing 757 Airplane Maintenance Manual, but no provisions...-16576; AD 2011-02-03] RIN 2120-AA64 Airworthiness Directives; The Boeing Company Model 757 Airplanes... service information identified in this AD, contact Boeing Commercial Airplanes, Attention: Data & Services...

  18. Structural integrity of future aging airplanes

    Science.gov (United States)

    McGuire, Jack F.; Goranson, Ulf G.

    1992-07-01

    A multitude of design considerations is involved in ensuring the structural integrity of Boeing jet transports that have common design concepts validated by extensive analyses, tests, and three decades of service. As airplanes approach their design service objectives, the incidences of fatigue and corrosion may become widespread. Continuing airworthiness of the aging jet fleet requires diligent performance from the manufacturer, the airlines, and airworthiness authorities. Aging fleet support includes timely development of supplemental structural inspection documents applicable to selected older airplanes, teardown inspections of high-time airframes retired from service, fatigue testing of older airframes, and structural surveys of more than 130 airplanes operated throughout the world. Lessons learned from these activities are incorporated in service bulletin recommendations, production line modifications, and design manual updates. An overview of traditional Boeing fleet support activities and the anticipated benefits for future generations of commercial airplanes based on the continuous design improvement process are presented.

  19. Deterioration of airplane fabrics

    Science.gov (United States)

    Wendt, FR

    1922-01-01

    The observation that airplane fabrics, after long use, lose their original strength, caused the German Experimental Institute for Aviation to carry out a series of experiments on the effect of weathering on the cloth covering of airplane wings and fuselages.

  20. Social networks enabled coordination model for cost management of patient hospital admissions.

    Science.gov (United States)

    Uddin, Mohammed Shahadat; Hossain, Liaquat

    2011-09-01

    In this study, we introduce a social networks enabled coordination model for exploring the effect of network position of "patient," "physician," and "hospital" actors in a patient-centered care network that evolves during patient hospitalization period on the total cost of coordination. An actor is a node, which represents an entity such as individual and organization in a social network. In our analysis of actor networks and coordination in the healthcare literature, we identified that there is significant gap where a number of promising hospital coordination model have been developed (e.g., Guided Care Model, Chronic Care Model) for the current healthcare system focusing on quality of service and patient satisfaction. The health insurance dataset for total hip replacement (THR) from hospital contribution fund, a prominent Australian Health Insurance Company, are analyzed to examine our proposed coordination model. We consider network attributes of degree, connectedness, in-degree, out-degree, and tie strength to measure network position of actors. To measure the cost of coordination for a particular hospital, average of total hospitalization expenses for all THR hospital admissions is used. Results show that network positions of "patient," "physician," and "hospital" actors considering all hospital admissions that a particular hospital has have effect on the average of total hospitalization expenses of that hospital. These results can be used as guidelines to set up a cost-effective healthcare practice structure for patient hospitalization expenses. © 2011 National Association for Healthcare Quality.

  1. 77 FR 50644 - Airworthiness Directives; Cessna Airplane Company Airplanes

    Science.gov (United States)

    2012-08-22

    ... Directives; Cessna Airplane Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION... certain Cessna Airplane Company Model 525 airplanes equipped with certain part number (P/N) air... airplanes, where investigation revealed brushes had worn beyond their limits on the part number (P/N...

  2. 75 FR 16651 - Airworthiness Directives; The Boeing Company Model 747-200C and -200F Series Airplanes

    Science.gov (United States)

    2010-04-02

    ... the former Delegation Option Authorization (DOA) program. However, we have also revised paragraph (h...) or by an Authorized Representative for the Boeing Commercial Airplanes DOA. Explanation of Changes...

  3. The Bristol "Badminton" Airplane

    Science.gov (United States)

    1926-01-01

    The Bristol Badminton, Type 99 airplane has a radial aircooled engine (a Bristol Jupiter 9 cylinder 450 HP.) and three fuel tanks. It is a single seat biplane weighing 1,840 lbs. empty and 2,460 lbs. loaded.

  4. Mars Gashopper Airplane Project

    Data.gov (United States)

    National Aeronautics and Space Administration — The Mars Gas Hopper Airplane, or "gashopper" is a novel concept for propulsion of a robust Mars flight and surface exploration vehicle that utilizes indigenous CO2...

  5. Simulation of Dynamics of a Flexible Miniature Airplane

    Science.gov (United States)

    Waszak, Martin R.

    2005-01-01

    A short report discusses selected aspects of the development of the University of Florida micro-aerial vehicle (UFMAV) basically, a miniature airplane that has a flexible wing and is representative of a new class of airplanes that would operate autonomously or under remote control and be used for surveillance and/or scientific observation. The flexibility of the wing is to be optimized such that passive deformation of the wing in the presence of aerodynamic disturbances would reduce the overall response of the airplane to disturbances, thereby rendering the airplane more stable as an observation platform. The aspect of the development emphasized in the report is that of computational simulation of dynamics of the UFMAV in flight, for the purpose of generating mathematical models for use in designing control systems for the airplane. The simulations are performed by use of data from a wind-tunnel test of the airplane in combination with commercial software, in which are codified a standard set of equations of motion of an airplane, and a set of mathematical routines to compute trim conditions and extract linear state space models.

  6. 76 FR 63172 - Airworthiness Directives; The Boeing Company Model 767 Airplanes

    Science.gov (United States)

    2011-10-12

    ... Manuals (SRMs) To Clarify Terminating Action Boeing requested that we specify Model 767-300BCF and Model...; AD 2011-14-02] RIN 2120-AA64 Airworthiness Directives; The Boeing Company Model 767 Airplanes AGENCY..., contact Boeing Commercial Airplanes, Attention: Data & Services Management, P.O. Box 3707, MC 2H-65...

  7. The Livermore Brain: Massive Deep Learning Networks Enabled by High Performance Computing

    Energy Technology Data Exchange (ETDEWEB)

    Chen, Barry Y. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2016-11-29

    The proliferation of inexpensive sensor technologies like the ubiquitous digital image sensors has resulted in the collection and sharing of vast amounts of unsorted and unexploited raw data. Companies and governments who are able to collect and make sense of large datasets to help them make better decisions more rapidly will have a competitive advantage in the information era. Machine Learning technologies play a critical role for automating the data understanding process; however, to be maximally effective, useful intermediate representations of the data are required. These representations or “features” are transformations of the raw data into a form where patterns are more easily recognized. Recent breakthroughs in Deep Learning have made it possible to learn these features from large amounts of labeled data. The focus of this project is to develop and extend Deep Learning algorithms for learning features from vast amounts of unlabeled data and to develop the HPC neural network training platform to support the training of massive network models. This LDRD project succeeded in developing new unsupervised feature learning algorithms for images and video and created a scalable neural network training toolkit for HPC. Additionally, this LDRD helped create the world’s largest freely-available image and video dataset supporting open multimedia research and used this dataset for training our deep neural networks. This research helped LLNL capture several work-for-others (WFO) projects, attract new talent, and establish collaborations with leading academic and commercial partners. Finally, this project demonstrated the successful training of the largest unsupervised image neural network using HPC resources and helped establish LLNL leadership at the intersection of Machine Learning and HPC research.

  8. Prospect of ultralight airplanes development

    OpenAIRE

    Adam KONICZEK; Robert KONIECZKA

    2015-01-01

    The article presents characteristic of ultralight airplanes, rules and current interest of them. The purpose is to determine prospect of ultralight airplanes development on the basis of Civil Aviation Authority statistics analysis and trend of aviation market.

  9. Prospect of ultralight airplanes development

    Directory of Open Access Journals (Sweden)

    Adam KONICZEK

    2015-09-01

    Full Text Available The article presents characteristic of ultralight airplanes, rules and current interest of them. The purpose is to determine prospect of ultralight airplanes development on the basis of Civil Aviation Authority statistics analysis and trend of aviation market.

  10. 14 CFR 36.7 - Acoustical change: Transport category large airplanes and jet airplanes.

    Science.gov (United States)

    2010-01-01

    ... airplanes and jet airplanes. 36.7 Section 36.7 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... § 36.7 Acoustical change: Transport category large airplanes and jet airplanes. (a) Applicability. This section applies to all transport category large airplanes and jet airplanes for which an acoustical change...

  11. Annoyance Caused by Propeller Airplane Flyover Noise: Preliminary Results

    Science.gov (United States)

    Mccurdy, D. A.; Powell, C. A.

    1981-01-01

    The annoyance response of people to the noise of propeller airplane flyovers was examined. The specific items of interest were: (1) the annoyance prediction ability of current noise metrics; (2) the effect of tone corrections on prediction ability; (3) the effect of duration corrections on prediction ability; and (4) the effect of 'critical band' corrections on the prediction ability of perceived noise level. Preliminary analyses of the data obtained from two experiments are presented. The first experiment examined 11 propeller airplanes with maximum takeoff weights greater than or equal to 5700 kg. The second experiment examined 14 propeller airplanes weighting 5700 kg or less. Also included in each experiment were five different commercial service jet airplanes. Each airplane noise was presented at D-weighted sound pressure levels of 70, 80, and 90 dB to subjects in a testing room which simulates the outdoor acoustic environment. Subjects judged 108 stimuli in the first experiment and 132 stimuli in the second experiment. Perceived noise level predicted annoyance better than A, D, or E-weighted sound pressure level. Corrections for tones greater than of equal to 500 Hz generally improved prediction ability for the heavier propeller airplanes.

  12. 78 FR 28152 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-05-14

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... A318-111 and -112 airplanes, Model A319 series airplanes, Model A320 series airplanes, and Model A321 series airplanes. The existing AD currently requires repetitive inspections of the 80VU rack lower...

  13. 76 FR 78524 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2011-12-19

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final... series airplanes, Model A340-200 and -300 series airplanes, and Model A340-500 and -600 series airplanes..., ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, Washington 98057-3356...

  14. 76 FR 64781 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2011-10-19

    ...-16837; AD 2011-21-14] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes AGENCY: Federal Aviation... series airplanes, and Model C4-605R Variant F airplanes (collectively called A300-600 series airplanes... Rodina, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind...

  15. 76 FR 79558 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2011-12-22

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... F4-600R series airplanes, and Model C4-605R Variant F airplanes (collectively called A300-600 series airplanes), and Model A310 series airplanes. This proposed AD was prompted by a report of a crack in the...

  16. 77 FR 16430 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-03-21

    ...-104-AD; Amendment 39-16983; AD 2012-06-02] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... F4-600R series airplanes, and Model C4-605R Variant F airplanes (collectively called A300-600 series airplanes), and Model A310 series airplanes. This AD was prompted by a report of a crack in the selector...

  17. 77 FR 59149 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-09-26

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes..., and F4-600R series airplanes, and Model A300 C4-605R Variant F airplanes (collectively called A300-600 series airplanes); and Model A310 series airplanes. This proposed AD was prompted by reports of cracking...

  18. 78 FR 9581 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-02-11

    ...-052-AD; Amendment 39-17346; AD 2013-03-11] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes..., and F4-600R series airplanes, and Model A300 C4-605R Variant F airplanes (collectively called A300-600 series airplanes); and Model A310 series airplanes. This AD was prompted by reports of cracking through...

  19. 78 FR 9787 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-02-12

    ...-099-AD; Amendment 39-17340; AD 2013-03-05] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... F4-600R series airplanes, and Model A300 C4-605R Variant F airplanes (collectively called Model A300- 600 series airplanes); and Airbus ] Model A310 series airplanes. This AD was prompted by fuel system...

  20. 77 FR 24367 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-04-24

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final..., B4-103, and B4-203 airplanes; Model A300 B4- 600, B4-600R, and F4-600R series airplanes, and Model C4-605R Variant F airplanes (collectively called A300-600 series airplanes); and Model A310 series...

  1. 78 FR 25902 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-05-03

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... Freighter series airplanes, and Model A340-200, -300, -500, and -600 series airplanes. This proposed AD would require, for certain airplanes, revising the airplane flight manual (AFM) to advise the flight...

  2. 76 FR 79560 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2011-12-22

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... airplanes; Model A330-223F and -243F airplanes; and Model A340-200, -300, -500, and -600 series airplanes... airplane flight manual. We are proposing this AD to prevent movement of the elevators to zero position...

  3. 77 FR 62182 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-10-12

    ... Directives; Airbus Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed... B4-600, B4-600R, and F4-600R series airplanes, and Model A300 C4-605R Variant F airplanes (collectively called Model A300- 600 series airplanes); and Airbus Model A310 series airplanes. This proposed AD...

  4. Unmanned Airplane Autopilot Tuning

    OpenAIRE

    Petar Getsov; Dimitar Yordanov

    2014-01-01

    This article considers different approaches for autopilot controller gain values adjustment. The correct autopilot performance is tested using modeling methods. A variant of land-based autopilot is considered. Examined are scenarios of UAV airplanes in level flight. The latter are applicable to tasks such as remote sensing, controlled area surveillance, etc.

  5. The evolution of airplanes

    Science.gov (United States)

    Bejan, A.; Charles, J. D.; Lorente, S.

    2014-07-01

    The prevailing view is that we cannot witness biological evolution because it occurred on a time scale immensely greater than our lifetime. Here, we show that we can witness evolution in our lifetime by watching the evolution of the flying human-and-machine species: the airplane. We document this evolution, and we also predict it based on a physics principle: the constructal law. We show that the airplanes must obey theoretical allometric rules that unite them with the birds and other animals. For example, the larger airplanes are faster, more efficient as vehicles, and have greater range. The engine mass is proportional to the body size: this scaling is analogous to animal design, where the mass of the motive organs (muscle, heart, lung) is proportional to the body size. Large or small, airplanes exhibit a proportionality between wing span and fuselage length, and between fuel load and body size. The animal-design counterparts of these features are evident. The view that emerges is that the evolution phenomenon is broader than biological evolution. The evolution of technology, river basins, and animal design is one phenomenon, and it belongs in physics.

  6. 78 FR 66859 - Airworthiness Directives; the Boeing Company Airplanes

    Science.gov (United States)

    2013-11-07

    ... Commercial Airplanes, Attention: Data & Services Management, P.O. Box 3707, MC 2H-65, Seattle, WA 98124-2207....gov ; or in person at the Docket Management Facility between 9 a.m. and 5 p.m., Monday through Friday.... According to the manufacturer, some of the costs of this proposed AD may be covered under warranty, thereby...

  7. 78 FR 63130 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-10-23

    ... proposed AD, contact Boeing Commercial Airplanes, Attention: Data & Services Management, P.O. Box 3707, MC... the Internet at http://www.regulations.gov ; or in person at the Docket Management Facility between 9... costs of this proposed AD may be covered under warranty, thereby reducing the cost impact on affected...

  8. 78 FR 75512 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-12-12

    ... Commercial Airplanes, Attention: Data & Services Management, P.O. Box 3707, MC 2H-65, Seattle, Washington...://www.regulations.gov ; or in person at the Docket Management Facility between 9 a.m. and 5 p.m., Monday... of the costs of this proposed AD may be covered under warranty, thereby reducing the cost impact on...

  9. 76 FR 58722 - Airworthiness Directives; the Boeing Company Airplanes

    Science.gov (United States)

    2011-09-22

    ..., Revision 1, dated May 27, 2010, refers to Section 51-10-02 of the Boeing 747- 400F Structural Repair Manual... Directives; the Boeing Company Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... Federal holidays. For service information identified in this proposed AD, contact Boeing Commercial...

  10. 77 FR 58330 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-09-20

    ..., Attention: Manager, Airline Support, email: [email protected] . The report must include the inspection...-917-6590; email: [email protected] . SUPPLEMENTARY INFORMATION: Comments Invited We invite you to... (g) and (k) of this AD, to Boeing Commercial Airplanes Group, Attention: Manager, Airline Support...

  11. 78 FR 72834 - Airworthiness Directives; SOCATA Airplanes

    Science.gov (United States)

    2013-12-04

    ... Directives; SOCATA Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT... (AD) for SOCATA Model TBM 700 airplanes. This proposed AD results from mandatory continuing... review this referenced service information at the FAA, Small Airplane Directorate, 901 Locust, Kansas...

  12. 76 FR 69168 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2011-11-08

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes..., and B4-203 airplanes; Model A300 B4-600, B4-600R, and F4-600R series airplanes, and Model C4-605R Variant F airplanes (collectively called A300-600 series airplanes); and Model A310 series airplanes. This...

  13. Flatulence on airplanes: just let it go.

    Science.gov (United States)

    Pommergaard, Hans C; Burcharth, Jakob; Fischer, Anders; Thomas, William E G; Rosenberg, Jacob

    2013-02-15

    Flatus is natural and an invariable consequence of digestion, however at times it creates problems of social character due to sound and odour. This problem may be more significant on commercial airplanes where many people are seated in limited space and where changes in volume of intestinal gases, due to altered cabin pressure, increase the amount of potential flatus. Holding back flatus on an airplane may cause significant discomfort and physical symptoms, whereas releasing flatus potentially presents social complications. To avoid this problem we humbly propose that active charcoal should be embedded in the seat cushion, since this material is able to neutralise the odour. Moreover active charcoal may be used in trousers and blankets to emphasise this effect. Other less practical or politically correct solutions to overcome this problem may be to restrict access of flatus-prone persons from airplanes, by using a methane breath test or to alter the fibre content of airline meals in order to reduce its flatulent potential. We conclude that the use of active charcoal on airlines may improve flight comfort for all passengers.

  14. 76 FR 22059 - Airworthiness Directives; The Boeing Company Model 757 Airplanes, and Model 767-200, 767-300, and...

    Science.gov (United States)

    2011-04-20

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; The Boeing Company... requires revising the Limitations section of the airplane flight manual (AFM) to advise the flight crew of... service information identified in this AD, contact Boeing Commercial Airplanes, Attention: Data & Services...

  15. Airplane dopes and doping

    Science.gov (United States)

    Smith, W H

    1919-01-01

    Cellulose acetate and cellulose nitrate are the important constituents of airplane dopes in use at the present time, but planes were treated with other materials in the experimental stages of flying. The above compounds belong to the class of colloids and are of value because they produce a shrinking action on the fabric when drying out of solution, rendering it drum tight. Other colloids possessing the same property have been proposed and tried. In the first stages of the development of dope, however, shrinkage was not considered. The fabric was treated merely to render it waterproof. The first airplanes constructed were covered with cotton fabric stretched as tightly as possible over the winds, fuselage, etc., and flying was possible only in fine weather. The necessity of an airplane which would fly under all weather conditions at once became apparent. Then followed experiments with rubberized fabrics, fabrics treated with glue rendered insoluble by formaldehyde or bichromate, fabrics treated with drying and nondrying oils, shellac, casein, etc. It was found that fabrics treated as above lost their tension in damp weather, and the oil from the motor penetrated the proofing material and weakened the fabric. For the most part the film of material lacked durability. Cellulose nitrate lacquers, however were found to be more satisfactory under varying weather conditions, added less weight to the planes, and were easily applied. On the other hand, they were highly inflammable, and oil from the motor penetrated the film of cellulose nitrate, causing the tension of the fabric to be relaxed.

  16. Aerodynamic characteristics of airplanes at high angles of attack

    Science.gov (United States)

    Chambers, J. R.; Grafton, S. B.

    1977-01-01

    An introduction to, and a broad overiew of, the aerodynamic characteristics of airplanes at high angles of attack are provided. Items include: (1) some important fundamental phenomena which determine the aerodynamic characteristics of airplanes at high angles of attack; (2) static and dynamic aerodynamic characteristics near the stall; (3) aerodynamics of the spin; (4) test techniques used in stall/spin studies; (5) applications of aerodynamic data to problems in flight dynamics in the stall/spin area; and (6) the outlook for future research in the area. Although stalling and spinning are flight dynamic problems of importance to all aircraft, including general aviation aircraft, commercial transports, and military airplanes, emphasis is placed on military configurations and the principle aerodynamic factors which influence the stability and control of such vehicles at high angles of attack.

  17. Three Cases of Spine Fractures after an Airplane Crash

    Science.gov (United States)

    Lee, Han Joo; Moon, Bong Ju; Pennant, William A.; Shin, Dong Ah; Kim, Keung Nyun; Yoon, Do Heum

    2015-01-01

    While injuries to the spine after an airplane crash are not rare, most crashes result in fatal injuries. As such, few studies exist that reported on spine fractures sustained during airplane accidents. In this report, we demonstrate three cases of spine fractures due to crash landing of a commercial airplane. Three passengers perished from injuries after the crash landing, yet most of the passengers and crew on board survived, with injuries ranging from minor to severe. Through evaluating our three spine fracture patients, it was determined that compression fracture of the spine was the primary injury related to the airplane accident. The first patient was a 20-year-old female who sustained a T6-8 compression fracture without neurologic deterioration. The second patient was a 33-year-old female with an L2 compression fracture, and the last patient was a 49-year-old male patient with a T8 compression fracture. All three patients were managed conservatively and required spinal orthotics. During the crash, each of these patients were subjected to direct, downward high gravity z-axis (Gz) force, which gave rise to load on the spine vertically, thereby causing compression fracture. Therefore, new safety methods should be developed to prevent excessive Gz force during airplane crash landings. PMID:27169094

  18. Mission Command in the Age of Network-Enabled Operations: Social Network Analysis of Information Sharing and Situation Awareness.

    Science.gov (United States)

    Buchler, Norbou; Fitzhugh, Sean M; Marusich, Laura R; Ungvarsky, Diane M; Lebiere, Christian; Gonzalez, Cleotilde

    2016-01-01

    A common assumption in organizations is that information sharing improves situation awareness and ultimately organizational effectiveness. The sheer volume and rapid pace of information and communications received and readily accessible through computer networks, however, can overwhelm individuals, resulting in data overload from a combination of diverse data sources, multiple data formats, and large data volumes. The current conceptual framework of network enabled operations (NEO) posits that robust networking and information sharing act as a positive feedback loop resulting in greater situation awareness and mission effectiveness in military operations (Alberts and Garstka, 2004). We test this assumption in a large-scale, 2-week military training exercise. We conducted a social network analysis of email communications among the multi-echelon Mission Command staff (one Division and two sub-ordinate Brigades) and assessed the situational awareness of every individual. Results from our exponential random graph models challenge the aforementioned assumption, as increased email output was associated with lower individual situation awareness. It emerged that higher situation awareness was associated with a lower probability of out-ties, so that broadly sending many messages decreased the likelihood of attaining situation awareness. This challenges the hypothesis that increased information sharing improves situation awareness, at least for those doing the bulk of the sharing. In addition, we observed two trends that reflect a compartmentalizing of networked information sharing as email links were more commonly formed among members of the command staff with both similar functions and levels of situation awareness, than between two individuals with dissimilar functions and levels of situation awareness; both those findings can be interpreted to reflect effects of homophily. Our results have major implications that challenge the current conceptual framework of NEO. In

  19. 77 FR 21397 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-04-10

    ...-015-AD; Amendment 39-16945; AD 2012-03-04] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... airplanes. That AD currently requires, for certain airplanes, modifying the wire routing and installing additional protective sleeves. This new AD adds, for certain airplanes, modifying wire routings and...

  20. 78 FR 1723 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-01-09

    ...-227-AD; Amendment 39-17312; AD 2012-26-51] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... airplanes. This emergency AD was sent previously to all known U.S. owners and operators of these airplanes. This AD requires revising the airplane flight manual (AFM) to advise the flight crew of emergency...

  1. 78 FR 28159 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-05-14

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes...: We propose to adopt a new airworthiness directive (AD) for certain Airbus Model A300 series airplanes; Model A300 B4-600, B4-600R, and F4-600R series airplanes, and Model A300 C4-605R Variant F airplanes...

  2. 77 FR 37797 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-06-25

    ...-059-AD; Amendment 39-17092; AD 2012-12-12] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes.... SUMMARY: We are adopting a new airworthiness directive (AD) for all Airbus Model A330-200 series airplanes; Airbus Model A330-200 Freighter series airplanes; Airbus Model A330-300 series airplanes; Airbus Model...

  3. 77 FR 6023 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-02-07

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... airplanes and Model A310-203, -204, - 221, and -222 airplanes. This proposed AD was prompted by a report of... explosion and consequent loss of the airplane. DATES: We must receive comments on this proposed AD by March...

  4. 77 FR 75825 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-12-26

    ...-260-AD; Amendment 39-17293; AD 2012-25-12] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... airplanes. This AD was prompted by a report of a prematurely fractured main landing gear (MLG) bogie beam... result in the airplane departing the runway, the bogie beam detaching from the airplane, or collapse of...

  5. 77 FR 76228 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-12-27

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final... airplanes and Model A340-200 and -300 series airplanes. This AD was prompted by reports that, during a... with malfunction of one engine, could result in reduced controllability of the airplane. DATES: This AD...

  6. 77 FR 55163 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-09-07

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... directive (AD) for certain Airbus Model A330-200, A330-300, A340-200, and A340- 300 series airplanes; and Model A340-541 airplanes and Model A340-642 airplanes. That NPRM proposed to require performing a...

  7. 78 FR 21227 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-04-10

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final...-200 Freighter, A330-300, A340-200, and A340-300 series airplanes; and Model A340-541 airplanes and Model A340- 642 airplanes. This AD was prompted by reports of cracks in the bogie pivot pin caused by...

  8. 76 FR 77934 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2011-12-15

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes...: We propose to adopt a new airworthiness directive (AD) for certain Airbus Model A319 series airplanes, Model A320-211, -212, -214, -231, -232, and -233 airplanes, and Model A321 series airplanes that would...

  9. 78 FR 60798 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-10-02

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... directive (AD) for all Airbus Model A330-200, -300 and -200 Freighter series airplanes, and Model A340-200, -300, -500, and -600 series airplanes. The NPRM proposed to require, for certain airplanes, revising...

  10. 77 FR 60325 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-10-03

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... series airplanes. For certain airplanes, that NPRM proposed repetitive inspections for cracks of the... Model 318 airplanes from the applicability. That NPRM was prompted by reports of cracks found in the...

  11. 78 FR 15279 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-03-11

    ...-084-AD; Amendment 39-17341; AD 2013-03-06] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes..., and -300 series airplanes; and Model A340-200, -300, -500, and -600 series airplanes. This AD was... mode, in case of go-around, might lead to a temporary loss of airplane longitudinal control. This AD...

  12. 14 CFR 23.3 - Airplane categories.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Airplane categories. 23.3 Section 23.3... STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES General § 23.3 Airplane categories. (a) The normal category is limited to airplanes that have a seating configuration, excluding pilot...

  13. 14 CFR 125.93 - Airplane limitations.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane limitations. 125.93 Section 125.93...: AIRPLANES HAVING A SEATING CAPACITY OF 20 OR MORE PASSENGERS OR A MAXIMUM PAYLOAD CAPACITY OF 6,000 POUNDS OR MORE; AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Airplane Requirements § 125.93 Airplane...

  14. 77 FR 11793 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-02-28

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes..., and B4-2C airplanes, and Model B4-600, B4-600R, and F4-600R series airplanes, and Model C4-605R Variant F airplanes (collectively called A300-600 series airplanes). This proposed AD was prompted by...

  15. Airplane Upset Training Evaluation Report

    Science.gov (United States)

    Gawron, Valerie J.; Jones, Patricia M. (Technical Monitor)

    2002-01-01

    Airplane upset accidents are a leading factor in hull losses and fatalities. This study compared five types of airplane-upset training. Each group was composed of eight, non-military pilots flying in their probationary year for airlines operating in the United States. The first group, 'No aero / no upset,' was made up of pilots without any airplane upset training or aerobatic flight experience; the second group, 'Aero/no upset,' of pilots without any airplane-upset training but with aerobatic experience; the third group, 'No aero/upset,' of pilots who had received airplane-upset training in both ground school and in the simulator; the fourth group, 'Aero/upset,' received the same training as Group Three but in addition had aerobatic flight experience; and the fifth group, 'In-flight' received in-flight airplane upset training using an instrumented in-flight simulator. Recovery performance indicated that clearly training works - specifically, all 40 pilots recovered from the windshear upset. However few pilots were trained or understood the use of bank to change the direction of the lift vector to recover from nose high upsets. Further, very few thought of, or used differential thrust to recover from rudder or aileron induced roll upsets. In addition, recovery from icing-induced stalls was inadequate.

  16. Small-scale fixed wing airplane software verification flight test

    Science.gov (United States)

    Miller, Natasha R.

    The increased demand for micro Unmanned Air Vehicles (UAV) driven by military requirements, commercial use, and academia is creating a need for the ability to quickly and accurately conduct low Reynolds Number aircraft design. There exist several open source software programs that are free or inexpensive that can be used for large scale aircraft design, but few software programs target the realm of low Reynolds Number flight. XFLR5 is an open source, free to download, software program that attempts to take into consideration viscous effects that occur at low Reynolds Number in airfoil design, 3D wing design, and 3D airplane design. An off the shelf, remote control airplane was used as a test bed to model in XFLR5 and then compared to flight test collected data. Flight test focused on the stability modes of the 3D plane, specifically the phugoid mode. Design and execution of the flight tests were accomplished for the RC airplane using methodology from full scale military airplane test procedures. Results from flight test were not conclusive in determining the accuracy of the XFLR5 software program. There were several sources of uncertainty that did not allow for a full analysis of the flight test results. An off the shelf drone autopilot was used as a data collection device for flight testing. The precision and accuracy of the autopilot is unknown. Potential future work should investigate flight test methods for small scale UAV flight.

  17. 78 FR 78285 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-12-26

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... A300 B4-605R and B4-622R airplanes; Model A300 F4-605R airplanes; and Model A300 C4-605R Variant F airplanes. AD 2005-23-08 required repetitive inspections to detect cracks of certain attachment holes...

  18. 77 FR 15644 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-03-16

    ... INFORMATION CONTACT: Vladimir Ulyanov, Aerospace Engineer, International Branch, ANM-116, Transport Airplane...) 88. In line with SFAR88, the JAA issued policy JAA INT/POL 25/12 and recommended to the National... production. (2) Airbus Model A330-223F and -243F airplanes; all serial numbers; except airplanes on which...

  19. 77 FR 19065 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-03-30

    ...-057-AD; Amendment 39-16993; AD 2012-06-12] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... A340-600 series airplanes. This AD requires a detailed inspection for abnormalities of the ball lock... Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA 1601 Lind Avenue SW., Renton...

  20. 78 FR 71996 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-12-02

    ...-143-AD; Amendment 39-17566; AD 2013-17-02] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes..., A319-112, A319-115, A319-132, and A319-133 airplanes. This AD was prompted by a report that a fastener... lower shell panel, was not installed on airplanes during production. This AD requires inspecting forward...

  1. 78 FR 54377 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-09-04

    ...-160-AD; Amendment 39-17573; AD 2013-17-09] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... A321 series airplanes. This AD was prompted by reports that certain trimmable horizontal stabilizer... airplane. DATES: This AD becomes effective October 9, 2013. The Director of the Federal Register approved...

  2. 76 FR 50706 - Airworthiness Directives; SOCATA Airplanes

    Science.gov (United States)

    2011-08-16

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; SOCATA Airplanes... SOCATA Model TBM 700 Airplanes. This proposed AD results from mandatory continuing airworthiness... copies of the referenced service information at the FAA, Small Airplane Directorate, 901 Locust, Kansas...

  3. 78 FR 21230 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-04-10

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final... A320 series airplanes. This AD was prompted by fuel system reviews conducted by the manufacturer, which... airplane. DATES: This AD becomes effective May 15, 2013. The Director of the Federal Register approved the...

  4. 77 FR 19067 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-03-30

    ...-047-AD; Amendment 39-16992; AD 2012-06-11] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... A321-131, -211, -212, and -231 airplanes. This AD requires a rotating probe inspection for cracking of..., International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, Washington...

  5. 78 FR 65187 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-10-31

    ...-082-AD; Amendment 39-17634; AD 2013-22-02] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes.... SUMMARY: We are adopting a new airworthiness directive (AD) for all Airbus Model A330-300 series airplanes and Model A340-200 and -300 series airplanes. This AD was prompted by reports of corrosion found on...

  6. 76 FR 72350 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2011-11-23

    ... Directives; Airbus Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed... A319, A320, and A321 airplanes that would supersede an existing AD. This proposed AD results from... Airplane Directorate, 1601 Lind Avenue SW., Renton, Washington. For information on the availability of this...

  7. 78 FR 14029 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-03-04

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes..., A319-112, A319-115, A319-132, and A319-133 airplanes. This proposed AD was prompted by a report that a...-14 lower shell panel, was not installed on airplanes during production. This proposed AD would...

  8. 78 FR 46543 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-08-01

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes...: We propose to adopt a new airworthiness directive (AD) for all Airbus Model A330-300 series airplanes and Model A340-200 and -300 series airplanes. This proposed AD was prompted by reports of corrosion...

  9. 77 FR 57003 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-09-17

    ...-058-AD; Amendment 39-17189; AD 2012-18-12] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... series airplanes. This AD was prompted by a report of a torn out aspirator due to the aspirator..., ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, Washington 98057-3356...

  10. 77 FR 51729 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-08-27

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes..., A340-200 and A340-300 series airplanes. This proposed AD was prompted by a report that revealed the... integrity of the airplane. DATES: We must receive comments on this proposed AD by October 11, 2012...

  11. 77 FR 65808 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-10-31

    ...-202-AD; Amendment 39-17233; AD 2012-21-17] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... airplanes. This AD was prompted by reports that medium-head fasteners were installed in lieu of shear-head..., which could result in the loss of structural integrity of the airplane. DATES: This AD becomes effective...

  12. 77 FR 7523 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-02-13

    ...-055-AD; Amendment 39-16952; AD 2012-03-10] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... A340-600 series airplanes. This AD requires modifying the fire extinguishing system from a three... CONTACT: Vladimir Ulyanov, Aerospace Engineer, International Branch, ANM-116, Transport Airplane...

  13. 78 FR 37498 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-06-21

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... Freighter, and -300 series airplanes. This proposed AD was prompted by a report that a certain wire harness... resulting in an uncontrolled fire and subsequent loss of the airplane. DATES: We must receive comments on...

  14. 78 FR 40074 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-07-03

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... series airplanes. This proposed AD was prompted by a determination that oxygen generators installed on a... information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information on...

  15. 78 FR 40057 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-07-03

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... A321 series airplanes. This proposed AD was prompted by reports of certain sliding windows that were... from safely evacuating the airplane during an emergency. DATES: We must receive comments on this...

  16. 78 FR 12988 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-02-26

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... A321 series airplanes. This proposed AD was prompted by reports that certain trimmable horizontal... of control of the airplane. DATES: We must receive comments on this proposed AD by April 12, 2013...

  17. 78 FR 37437 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-06-21

    ...-17383; AD 2013-05-11] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes AGENCY: Federal Aviation... existing airworthiness directive (AD) for certain Airbus Model A318, A319, A320, and A321 series airplanes..., corrective actions for those rudders where production rework has been identified. This new AD adds airplanes...

  18. 77 FR 19071 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-03-30

    ...-056-AD; Amendment 39-16991; AD 2012-06-10] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... A330-200, A330-300, A340-500, and A340-600 series airplanes. This AD requires a detailed inspection for... (including fuel tank areas) that could result in reduced structural integrity of the airplane. DATES: This AD...

  19. 77 FR 37829 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-06-25

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... A330-243, -341, -342 and -343 airplanes. The existing AD currently requires modifying certain cowl... life limits, and would also add airplanes to the applicability. We are proposing this AD to prevent...

  20. 77 FR 15636 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-03-16

    ... Directives; Airbus Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed..., A319, and A320 series airplanes. This proposed AD was prompted by reports of unsuccessful slide... Airplane Directorate, 1601 Lind Avenue SW., Renton, Washington. For information on the availability of this...

  1. 77 FR 70369 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-11-26

    ...-182-AD; Amendment 39-17266; AD 2012-23-10] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... A321 series airplanes. This AD was prompted by reports of the escape slide of the raft inflation system... result in delayed evacuation from the airplane during an emergency, and consequent injury to the...

  2. 78 FR 68352 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-11-14

    ...-116-AD; Amendment 39-17509; AD 2013-14-04] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes..., -322, and -323 airplanes. This AD was prompted by fatigue load analysis that determined that the... broken bolts, which could lead to engine detachment in-flight, and damage to the airplane. DATES: This AD...

  3. 78 FR 40069 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-07-03

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... B4-600 and Model A300 B4-600R series airplanes. That AD currently requires repetitive inspections to... information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information on...

  4. 78 FR 14647 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-03-07

    ...-075-AD; Amendment 39-17370; AD 2013-04-12] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes..., -322, and -324 airplanes. This AD was prompted by the manufacturer re-classifying slat extension..., which could result in the loss of structural integrity of the airplane. DATES: This AD becomes effective...

  5. 14 CFR 125.355 - Airplane equipment.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane equipment. 125.355 Section 125.355...: AIRPLANES HAVING A SEATING CAPACITY OF 20 OR MORE PASSENGERS OR A MAXIMUM PAYLOAD CAPACITY OF 6,000 POUNDS OR MORE; AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Flight Release Rules § 125.355 Airplane...

  6. 14 CFR 121.605 - Airplane equipment.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane equipment. 121.605 Section 121.605..., FLAG, AND SUPPLEMENTAL OPERATIONS Dispatching and Flight Release Rules § 121.605 Airplane equipment. No person may dispatch or release an airplane unless it is airworthy and is equipped as prescribed in § 121...

  7. 78 FR 32347 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-05-30

    ..., and -642 airplanes. (d) Subject Air Transport Association (ATA) of America Code 56, Windows. (e...-002-AD; Amendment 39-17459; AD 2013-10-06] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes...-200, A330-300, A340-200, A340- 300, A340-500, and A340-600 series airplanes. This AD was prompted by...

  8. 77 FR 63716 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-10-17

    ... Flapper Check Valves for leaks; apply to airplanes that have previously accomplished the actions specified... Check Valves for Reverse Flow and NEA Line for Leaks, applies to airplanes that have previously... Dual Flapper Check Valves for Reverse ] Flow, applies to airplanes in post-modification 38195...

  9. Air resistance measurements on actual airplane parts

    Science.gov (United States)

    Weiselsberger, C

    1923-01-01

    For the calculation of the parasite resistance of an airplane, a knowledge of the resistance of the individual structural and accessory parts is necessary. The most reliable basis for this is given by tests with actual airplane parts at airspeeds which occur in practice. The data given here relate to the landing gear of a Siemanms-Schuckert DI airplane; the landing gear of a 'Luftfahrzeug-Gesellschaft' airplane (type Roland Dlla); landing gear of a 'Flugzeugbau Friedrichshafen' G airplane; a machine gun, and the exhaust manifold of a 269 HP engine.

  10. 14 CFR 125.75 - Airplane flight manual.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane flight manual. 125.75 Section 125... Airplane flight manual. (a) Each certificate holder shall keep a current approved Airplane Flight Manual or... approved Airplane Flight Manual or the approved equivalent aboard each airplane it operates. A certificate...

  11. Testing a Windmill Airplane ("autogiro")

    Science.gov (United States)

    Seiferth, R

    1927-01-01

    In order to clear up the matter ( In the Spanish report it was stated that the reference surface for the calculation of the coefficients c(sub a) and c(sub w) was the area of all four wings, instead of a single wing), the model of a windwill airplane was tested in the Gottingen wind tunnel.

  12. 76 FR 62661 - Airworthiness Directives; The Boeing Company Model 767-200 and -300 Series Airplanes

    Science.gov (United States)

    2011-10-11

    ... identified in this proposed AD, contact Boeing Commercial Airplanes, Attention: Data & Services Management, P....regulations.gov ; or in person at the Docket Management Facility between 9 a.m. and 5 p.m., Monday through... AD may be covered under warranty, thereby reducing the cost impact on affected individuals. We do not...

  13. 75 FR 81430 - Airworthiness Directives; The Boeing Company Model 747 Airplanes

    Science.gov (United States)

    2010-12-28

    ... Section 53-30-03 of Boeing 747 Structural Repair Manual (SRM); and have not been modified in accordance...-012-AD; Amendment 39-16546; AD 2010-26-07] RIN 2120-AA64 Airworthiness Directives; The Boeing Company... Boeing Commercial Airplanes, Attention: Data & Services Management, P.O. Box 3707, MC 2H-65, Seattle...

  14. 76 FR 38072 - Airworthiness Directives; The Boeing Company Model 777 Airplanes

    Science.gov (United States)

    2011-06-29

    ... location of the crack. The related investigative action is doing a HFEC inspection for cracking around the... Commercial Airplanes Organization Designation Authorization (ODA) whom we have authorized to make those... between the national Government and the States, or on the distribution of power and responsibilities among...

  15. 14 CFR 121.207 - Provisionally certificated airplanes: Operating limitations.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Provisionally certificated airplanes... AND OPERATIONS OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations § 121.207 Provisionally certificated airplanes: Operating limitations. In...

  16. Annoyance caused by propeller airplane flyover noise

    Science.gov (United States)

    Mccurdy, D. A.; Powell, C. A.

    1984-01-01

    Laboratory experiments were conducted to provide information on quantifying the annoyance response of people to propeller airplane noise. The items of interest were current noise metrics, tone corrections, duration corrections, critical band corrections, and the effects of engine type, operation type, maximum takeoff weight, blade passage frequency, and blade tip speed. In each experiment, 64 subjects judged the annoyance of recordings of propeller and jet airplane operations presented at d-weighted sound pressure levels of 70, 80, and 90 dB in a testing room which simulates the outdoor acoustic environment. The first experiment examined 11 propeller airplanes with maximum takeoff weights greater than or equal to 5700 kg. The second experiment examined 14 propeller airplanes weighting 5700 kg or less. Five jet airplanes were included in each experiment. For both the heavy and light propeller airplanes, perceived noise level and perceived level (Stevens Mark VII procedure) predicted annoyance better than other current noise metrics.

  17. Headache during airplane travel ("airplane headache"): first case in Greece.

    Science.gov (United States)

    Kararizou, Evangelia; Anagnostou, Evangelos; Paraskevas, George P; Vassilopoulou, Sofia D; Naoumis, Dimitrios; Kararizos, Grigoris; Spengos, Konstantinos

    2011-08-01

    Headache related to airplane flights is rare. We describe a 37-year-old female patient with multiple intense, jabbing headache episodes over the last 3 years that occur exclusively during airplane flights. The pain manifests during take-off and landing, and is located always in the left retro-orbital and frontotemporal area. It is occasionally accompanied by dizziness, but no additional symptoms occur. Pain intensity diminishes and disappears after 15-20 min. Apart from occasional dizziness, no other symptoms occur. The patient has a history of tension-type headache and polycystic ovaries. Blood tests and imaging revealed no abnormalities. Here, we present the first case in Greece. We review the current literature on this rare syndrome and discuss on possible pathophysiology and the investigation of possible co-factors such as anxiety and depression.

  18. 77 FR 51717 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-08-27

    ... Directives; Airbus Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed... certain Airbus Model A300 B4-2C, B4-103, and B4- 203 airplanes; and Model A300 B4-601, B4-603, B4-620, B4-622, B4-605R, and B4-622R airplanes. The existing AD currently requires performing a one-time detailed...

  19. 77 FR 75833 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-12-26

    ...-183-AD; Amendment 39-17287; AD 2012-25-06] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes..., B4-103, and B4-203 airplanes; and Model A300 B4-601, B4-603, B4-620, B4-622, B4-605R, and B4-622R airplanes. That AD currently requires performing a one-time detailed visual inspection of the forward...

  20. Crash Tests of Protective Airplane Floors

    Science.gov (United States)

    Carden, H. D.

    1986-01-01

    Energy-absorbing floors reduce structural buckling and impact forces on occupants. 56-page report discusses crash tests of energy-absorbing aircraft floors. Describes test facility and procedures; airplanes, structural modifications, and seats; crash dynamics; floor and seat behavior; and responses of anthropometric dummies seated in airplanes. Also presents plots of accelerations, photographs and diagrams of test facility, and photographs and drawings of airplanes before, during, and after testing.

  1. Canadian Network Enabled Operations Initiatives

    Science.gov (United States)

    2004-06-01

    Canto One: Network Centric Warfare and the Myth of the New Economy, A Woven Web of Guesses, Canto Two: Network Centric Warfare and the Myth of...symposium 30 Nov – 2 Dec 04 CFEC-CEFC 5 CFEC CEFC CFEC Thrust Areas COMBAT ID FUTURE CFCS CF JOINT LOGISTICS INTEROPERABILITY WITH OGDS /NGOS/ CONTRACTORS...Surveillance, Fish Patrol, Protection of vital points • Forces: ROC, HFSWR, AIS, CP140, PAL, UAV, CBRN Team, ISTAR ASC, MEWT, Radarsat, OGDs • C4I

  2. [Radiation exposure and air quality aboard commercial airplanes].

    Science.gov (United States)

    Bergau, L

    1999-10-01

    The amount of exposure to cosmic radiation during air travel is next to a number of additional factors mainly dependent on the flight level of the aircraft. Flying in an altitude of 41,000 feet equaling 12,800 meters the amount of radiation exposure is of course considerable higher than on the ground. The overall exposure of flying personnel to cosmic radiation flying about 600-700 hours per year can be estimated between 3 and 6 mSv (300-600 mrem). According to the flight hours of passengers, the radiation exposure is much lower and can be neglected for most of the travelers final judgement about the possible risks for flying personnel as far as a higher incident of malignant tumors is concerned has not jet been finally made. Talking of cabin air quality compromises have to be made and thus the well-being of the passengers can be negatively influenced. Air pressure and oxygen partial pressure correspond to an altitude of 2400 meters (8,000 feet) above sea level with possible consequences to the cardiopulmonary system. Increased level of ozone can lead to respiratory problems of the upper airways, increased carbon dioxide may cause hyperventilation. The mucous membranes of the respiratory tract are dried out due to the extremely low humidity of the cabin air. Smoking during flight results in an increase of the nicotine blood levels even in passengers sitting in the non-smoking areas. In modern aircraft the fresh-air flow cannot be regulated individually any more, this may lead to an insufficient circulation of used air in relation to fresh air and could cause the phenomena of hanging smoke. There has always been the idea that there is an increased risk for passengers for acquiring infectious diseases. However this is not the case. Modern HEPA-filter prevent an accumulation even of the smallest particles including bacteria and viruses within the recirculation flow in the cabin air. The overall risk of getting an infectious disease is significantly lower than in other ground operated public means of transportation.

  3. 77 FR 66760 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-11-07

    ... Manager, International Branch, ANM-116, Transport Airplane Directorate, FAA, has the authority to approve... prompted by several reports of a burning smell and/or smoke in the cockpit during cruise phase leading, in... INFORMATION CONTACT: Vladimir Ulyanov, Aerospace Engineer, International Branch, ANM-116, Transport Airplane...

  4. 78 FR 70003 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-11-22

    ..., International Branch, ANM-116, Transport Airplane Directorate, FAA, has the authority to approve AMOCs for this... in a fuel pump overheating, leading to a fuel tank explosion. DATES: We must receive comments on this... Rodina, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind...

  5. 78 FR 64156 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-10-28

    ..., International ] Branch, ANM-116, Transport Airplane Directorate, FAA, has the authority to approve AMOCs for... change the characteristics of systems life-limited components leading to an increased potential for... Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton...

  6. 77 FR 48425 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-08-14

    ... INFORMATION CONTACT: Vladimir Ulyanov, Aerospace Engineer, International Branch, ANM-116, Transport Airplane... including Special Federal Aviation Regulation (SFAR) 88. In line with SFAR88, the JAA issued policy JAA INT... accomplished in production. (2) Airbus Model A330-223F and -243F airplanes; all serial numbers; except...

  7. 14 CFR 129.25 - Airplane security.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane security. 129.25 Section 129.25 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) AIR CARRIERS... AND FOREIGN OPERATORS OF U.S.-REGISTERED AIRCRAFT ENGAGED IN COMMON CARRIAGE General § 129.25 Airplane...

  8. 77 FR 32060 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-05-31

    ... Service Bulletin A320-47-1007, the tasks apply as follows: (i) Tasks 470000-01-1, Operational Check of... Flapper Check Valves for leaks; apply to airplanes that have previously accomplished the actions specified... Check Valves for Reverse Flow and NEA Line for Leaks; applies to airplanes that have previously...

  9. 14 CFR 91.853 - Final compliance: Civil subsonic airplanes.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Final compliance: Civil subsonic airplanes... Noise Limits § 91.853 Final compliance: Civil subsonic airplanes. Except as provided in § 91.873, after... airplane subject to § 91.801(c) of this subpart, unless that airplane has been shown to comply with Stage 3...

  10. 14 CFR 91.821 - Civil supersonic airplanes: Noise limits.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Civil supersonic airplanes: Noise limits... Noise Limits § 91.821 Civil supersonic airplanes: Noise limits. Except for Concorde airplanes having... airplane that does not comply with Stage 2 noise limits of part 36 in effect on October 13, 1977, using...

  11. 14 CFR 23.1437 - Accessories for multiengine airplanes.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Accessories for multiengine airplanes. 23... TRANSPORTATION AIRCRAFT AIRWORTHINESS STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES Equipment Miscellaneous Equipment § 23.1437 Accessories for multiengine airplanes. For multiengine airplanes...

  12. 14 CFR 21.5 - Airplane or Rotorcraft Flight Manual.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Airplane or Rotorcraft Flight Manual. 21.5... CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS General § 21.5 Airplane or Rotorcraft Flight Manual. (a) With each airplane or rotorcraft that was not type certificated with an Airplane or Rotorcraft Flight Manual...

  13. Error Analysis of Determining Airplane Location by Global Positioning System

    OpenAIRE

    Hajiyev, Chingiz; Burat, Alper

    1999-01-01

    This paper studies the error analysis of determining airplane location by global positioning system (GPS) using statistical testing method. The Newton Rhapson method positions the airplane at the intersection point of four spheres. Absolute errors, relative errors and standard deviation have been calculated The results show that the positioning error of the airplane varies with the coordinates of GPS satellite and the airplane.

  14. Optimal back-to-front airplane boarding.

    Science.gov (United States)

    Bachmat, Eitan; Khachaturov, Vassilii; Kuperman, Ran

    2013-06-01

    The problem of finding an optimal back-to-front airplane boarding policy is explored, using a mathematical model that is related to the 1+1 polynuclear growth model with concave boundary conditions and to causal sets in gravity. We study all airplane configurations and boarding group sizes. Optimal boarding policies for various airplane configurations are presented. Detailed calculations are provided along with simulations that support the main conclusions of the theory. We show that the effectiveness of back-to-front policies undergoes a phase transition when passing from lightly congested airplanes to heavily congested airplanes. The phase transition also affects the nature of the optimal or near-optimal policies. Under what we consider to be realistic conditions, optimal back-to-front policies lead to a modest 8-12% improvement in boarding time over random (no policy) boarding, using two boarding groups. Having more than two groups is not effective.

  15. Patterns of measles transmission among airplane travelers.

    Science.gov (United States)

    Edelson, Paul J

    2012-09-01

    With advanced air handling systems on modern aircraft and the high level of measles immunity in many countries, measles infection in air travelers may be considered a low-risk event. However, introduction of measles into countries where transmission has been controlled or eliminated can have substantial consequences both for the use of public health resources and for those still susceptible. In an effort to balance the relatively low likelihood of disease transmission among largely immune travelers and the risk to the public health of the occurrence of secondary cases resulting from importations, criteria in the United States for contact investigations for measles exposures consider contacts to be those passengers who are seated within 2 rows of the index case. However, recent work has shown that cabin air flow may not be as reliable a barrier to the spread of measles virus as previously believed. Along with these new studies, several reports have described measles developing after travel in passengers seated some distance from the index case. To understand better the potential for measles virus to spread on an airplane, reports of apparent secondary cases occurring in co-travelers of passengers with infectious cases of measles were reviewed. Medline™ was searched for articles in all languages from 1946 to week 1 of March 2012, using the search terms "measles [human] or rubeola" and ("aircraft" or "airplane" or "aeroplane" or "aviation" or "travel" or "traveler" or "traveller"); 45 citations were returned. Embase™ was searched from 1988 to week 11 2012, using the same search strategy; 95 citations were returned. Papers were included in this review if they reported secondary cases of measles occurring in persons traveling on an airplane on which a person or persons with measles also flew, and which included the seating location of both the index case(s) and the secondary case(s) on the plane. Nine reports, including 13 index cases and 23 apparent secondary cases

  16. Recurring norovirus transmission on an airplane.

    Science.gov (United States)

    Thornley, Craig N; Emslie, Nicola A; Sprott, Tim W; Greening, Gail E; Rapana, Jackie P

    2011-09-01

    Previously reported outbreaks of norovirus gastroenteritis associated with aircraft have been limited to transmission during a single flight sector. During October 2009, an outbreak of diarrhea and vomiting occurred among different groups of flight attendants who had worked on separate flight sectors on the same airplane. We investigated the cause of the outbreak and whether the illnesses were attributable to work on the airplane. Information was obtained from flight attendants on demographic characteristics, symptoms, and possible transmission risk factors. Case patients were defined as flight attendants with diarrhea or vomiting airplane during 13-18 October 2009. Stool samples were tested for norovirus RNA. A passenger had vomited on the Boeing 777-200 airplane on the 13 October flight sector. Sixty-three (82%) of 77 flight attendants who worked on the airplane during 13-18 October provided information, and 27 (43%) met the case definition. The attack rate among flight attendants decreased significantly over successive flight sectors from 13 October onward (P airplane during successive flight sectors. Airlines should make provision for adequate disinfection of airplanes with use of products effective against norovirus and other common infectious agents after vomiting has occurred.

  17. 75 FR 8554 - Airworthiness Directives; The Boeing Company Model 747-100, -200B, and -200F Series Airplanes

    Science.gov (United States)

    2010-02-25

    ... further flight, repair in accordance with Section 53- 30-03 of the Boeing 747 Structural Repair Manual... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; The Boeing Company... proposed AD, contact Boeing Commercial Airplanes, Attention: Data & Services Management, P.O. Box 3707, MC...

  18. 14 CFR 121.331 - Supplemental oxygen requirements for pressurized cabin airplanes: Reciprocating engine powered...

    Science.gov (United States)

    2010-01-01

    ... pressurized cabin airplanes: Reciprocating engine powered airplanes. 121.331 Section 121.331 Aeronautics and... pressurized cabin airplanes: Reciprocating engine powered airplanes. (a) When operating a reciprocating engine powered airplane pressurized cabin, each certificate holder shall equip the airplane to comply with...

  19. Modeling of terminal-area airplane fuel consumption

    Science.gov (United States)

    2009-08-01

    Accurate modeling of airplane fuel consumption is necessary for air transportation policy-makers to properly : adjudicate trades between competing environmental and economic demands. Existing public models used for : computing terminal-area airplane ...

  20. 77 FR 5386 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-02-03

    ... applies to certain Model DC- 10-10, DC-10-10F, and MD-10-10F airplanes. The airplane manufacturer name... actions if necessary, for certain Model DC-10-10, DC-10-10F, and MD-10-10F airplanes. As published, the... applies to The Boeing Company Model DC-10-10, DC-10-10F, and MD-10-10F airplanes; certificated in any...

  1. Commercializing Patents

    National Research Council Canada - National Science Library

    Ted Sichelman

    2010-01-01

    .... Although more recent "prospect" theories properly recognize the importance of patent protection for commercializing inventions, they incorrectly conclude that strong, real property-like rights...

  2. 14 CFR 125.205 - Equipment requirements: Airplanes under IFR.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Equipment requirements: Airplanes under IFR... CERTIFICATION AND OPERATIONS: AIRPLANES HAVING A SEATING CAPACITY OF 20 OR MORE PASSENGERS OR A MAXIMUM PAYLOAD... Equipment Requirements § 125.205 Equipment requirements: Airplanes under IFR. No person may operate an...

  3. 14 CFR 125.407 - Maintenance log: Airplanes.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Maintenance log: Airplanes. 125.407 Section... OPERATIONS: AIRPLANES HAVING A SEATING CAPACITY OF 20 OR MORE PASSENGERS OR A MAXIMUM PAYLOAD CAPACITY OF 6... Maintenance log: Airplanes. (a) Each person who takes corrective action or defers action concerning a reported...

  4. 14 CFR 121.503 - Flight time limitations: Pilots: airplanes.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Flight time limitations: Pilots: airplanes... Operations § 121.503 Flight time limitations: Pilots: airplanes. (a) A certificate holder conducting supplemental operations may schedule a pilot to fly in an airplane for eight hours or less during any 24...

  5. 14 CFR 23.71 - Glide: Single-engine airplanes.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Glide: Single-engine airplanes. 23.71... AIRWORTHINESS STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES Flight Performance § 23.71 Glide: Single-engine airplanes. The maximum horizontal distance traveled in still air, in nautical miles...

  6. 14 CFR 91.805 - Final compliance: Subsonic airplanes.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Final compliance: Subsonic airplanes. 91... § 91.805 Final compliance: Subsonic airplanes. Except as provided in §§ 91.809 and 91.811, on and after January 1, 1985, no person may operate to or from an airport in the United States any subsonic airplane...

  7. 14 CFR 121.159 - Single-engine airplanes prohibited.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Single-engine airplanes prohibited. 121.159 Section 121.159 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION... airplanes prohibited. No certificate holder may operate a single-engine airplane under this part. ...

  8. 14 CFR 121.199 - Nontransport category airplanes: Takeoff limitations.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Nontransport category airplanes: Takeoff... OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations § 121.199 Nontransport category airplanes: Takeoff limitations. (a) No person operating a...

  9. 77 FR 46943 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-08-07

    ... and the importance to the passengers and crew of these airplanes. The commenter contended these... service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For... 20, 2012. Kalene C. Yanamura, Acting Manager, Transport Airplane Directorate, Aircraft Certification...

  10. 75 FR 69745 - Aging Airplane Program: Widespread Fatigue Damage

    Science.gov (United States)

    2010-11-15

    .... For certain existing airplanes, the rule requires design approval holders to evaluate their airplanes... affective date of the rule, to establish an LOV. Design approval holders and applicants must demonstrate.... Operators may not fly an airplane beyond its LOV unless an extended LOV is approved. DATES: These amendments...

  11. 76 FR 81890 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2011-12-29

    ... the bear strap and inner chord strap on airplanes having a repair doubler, tripler, and quadrupler..., tripler, and quadrupler on airplanes having a repair doubler, tripler, and quadrupler installed..., doubler, and tripler on airplanes having a repair doubler and tripler installed. Supplemental HFEC, LFEC...

  12. 14 CFR 121.161 - Airplane limitations: Type of route.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane limitations: Type of route. 121... OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Aircraft Requirements § 121.161 Airplane... specifications, no certificate holder may operate a turbine-engine-powered airplane over a route that contains a...

  13. 14 CFR 61.159 - Aeronautical experience: Airplane category rating.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Aeronautical experience: Airplane category... Transport Pilots § 61.159 Aeronautical experience: Airplane category rating. (a) Except as provided in... certificate with an airplane category and class rating must have at least 1,500 hours of total time as a pilot...

  14. 14 CFR 121.570 - Airplane evacuation capability.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane evacuation capability. 121.570... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Flight Operations § 121.570 Airplane evacuation capability. (a) No person may cause an airplane carrying passengers to be moved on the surface, take off, or...

  15. 14 CFR 121.303 - Airplane instruments and equipment.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane instruments and equipment. 121.303... Airplane instruments and equipment. (a) Unless otherwise specified, the instrument and equipment... airspeed limitation and item of related information in the Airplane Flight Manual and pertinent placards...

  16. 14 CFR 125.91 - Airplane requirements: General.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane requirements: General. 125.91... AND OPERATIONS: AIRPLANES HAVING A SEATING CAPACITY OF 20 OR MORE PASSENGERS OR A MAXIMUM PAYLOAD CAPACITY OF 6,000 POUNDS OR MORE; AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Airplane Requirements...

  17. 77 FR 46343 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-08-03

    ...-400D, 747-400F, 747SR, and 747SP series airplanes; and certain Model 757-200, -200PF, and -300 series... receipt. FOR FURTHER INFORMATION CONTACT: Francis Smith, Aerospace Engineer, Cabin Safety & Environmental..., 747SR, and 747SP series airplanes; and certain Model 757-200, -200PF, and -300 series airplanes. That AD...

  18. 78 FR 73457 - Airworthiness Directives; the Boeing Company Airplanes

    Science.gov (United States)

    2013-12-06

    ... Boeing Company Model 747-100, 747-200B, 747-200F series airplanes. AD 84-19-01 requires repetitive... data that support the established structural maintenance program. For certain airplanes, this proposed..., corrective action if necessary, and eventual modification of the tension ties. For all airplanes, this...

  19. 77 FR 21422 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-04-10

    ... airplanes. That AD currently requires an inspection of the No. 2 and No. 3 windows on the left and right.... 2 and No. 3 windows. This new AD also removes certain airplanes from the applicability. This AD was... window replacement. Additionally, that NPRM also proposed removing airplanes having line numbers 1418 and...

  20. 78 FR 28125 - Airworthiness Directives; Twin Commander Aircraft LLC Airplanes

    Science.gov (United States)

    2013-05-14

    ... web, and the left and right picture window upper frame channels. Five other of the inspected airplanes... Aircraft LLC Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule; request for... LLC Models 690, 690A, and 690B airplanes. This AD requires inspection for cracking of the outer...

  1. 77 FR 71357 - Airworthiness Directives; Pacific Aerospace Limited Airplanes

    Science.gov (United States)

    2012-11-30

    ... Directives; Pacific Aerospace Limited Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... airworthiness directive (AD) for all Pacific Aerospace Limited Models FU24-954 and FU24A-954 airplanes that... INFORMATION CONTACT: Karl Schletzbaum, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room...

  2. 78 FR 22439 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-04-16

    ... Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed... all The Boeing Company Model 737-100, -200, -200C, -300, -400, and -500 series airplanes. The existing... The Boeing Company Model 737-100, -200, - 200C, -300, -400, and -500 series airplanes. That AD...

  3. 77 FR 52201 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-08-29

    ... installing AEDB software in the airplane AIMS hardware. Comments We gave the public the opportunity to... installing Aero-Engine database (AEDB) software in the airplane information management system (AIMS) hardware... referenced service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton...

  4. 14 CFR 121.141 - Airplane flight manual.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane flight manual. 121.141 Section 121... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Manual Requirements § 121.141 Airplane flight manual. (a) Each certificate holder shall keep a current approved airplane flight manual for each type of...

  5. 14 CFR 135.422 - Aging airplane inspections and records reviews for multiengine airplanes certificated with nine...

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Aging airplane inspections and records reviews for multiengine airplanes certificated with nine or fewer passenger seats. 135.422 Section 135.422... Maintenance, and Alterations § 135.422 Aging airplane inspections and records reviews for multiengine...

  6. 78 FR 63847 - Special Conditions: Embraer S.A., Model EMB-550 Airplanes; Airplane Electronic System Security...

    Science.gov (United States)

    2013-10-25

    ... design feature associated with the architecture and connectivity capabilities of the airplanes' computer... structure is metal with composite empennage and control surfaces. The Model EMB-550 airplane is designed for... architecture for the Embraer Model EMB-550 series of airplanes is composed of several connected networks. This...

  7. 14 CFR 121.181 - Airplanes: Reciprocating engine-powered: En route limitations: One engine inoperative.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplanes: Reciprocating engine-powered: En... OPERATIONS Airplane Performance Operating Limitations § 121.181 Airplanes: Reciprocating engine-powered: En... person operating a reciprocating engine powered airplane may take off that airplane at a weight, allowing...

  8. Performance Comparison of the Optimized Inverted Joined Wing Airplane Concept and Classical Configuration Airplanes

    Directory of Open Access Journals (Sweden)

    Sieradzki Adam

    2016-09-01

    Full Text Available The joined wing concept is an unconventional airplane configuration, known since the mid-twenties of the last century. It has several possible advantages, like reduction of the induced drag and weight due to the closed wing concept. The inverted joined wing variant is its rarely considered version, with the front wing being situated above the aft wing. The following paper presents a performance prediction of the recently optimized configuration of this airplane. Flight characteristics obtained numerically were compared with the performance of two classical configuration airplanes of similar category. Their computational fluid dynamics (CFD models were created basing on available documentation, photographs and some inverse engineering methods. The analysis included simulations performed for a scale of 3-meter wingspan inverted joined wing demonstrator and also for real-scale manned airplanes. Therefore, the results of CFD calculations allowed us to assess the competitiveness of the presented concept, as compared to the most technologically advanced airplanes designed and manufactured to date. At the end of the paper, the areas where the inverted joined wing is better than conventional airplane were predicted and new research possibilities were described.

  9. 77 FR 58789 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-09-24

    ... Ulyanov, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind... actuation rod, that both the eye-end male threads and piston rod female threads were almost completely... have a substantial direct effect on the States, on the relationship between the national Government and...

  10. 78 FR 48286 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-08-08

    ... Ralhan, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind...) door opening/closing sequence, leading to the generation of Centralized Fault Display System (CFDS... been approved by the aviation authority of another country, and is approved for operation in the United...

  11. 78 FR 60667 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-10-02

    ... Ralhan, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind... considered the comments received. Support for the NPRM (78 FR 25666, May 2, 2013) The Air Line Pilots... AoA sensor conic plate has been installed in production by Airbus modification 153213 or 153214, or...

  12. 77 FR 24829 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-04-26

    ... INFORMATION CONTACT: Vladimir Ulyanov, Aerospace Engineer, International Branch, ANM-116, Transport Airplane... embody in service a new FCPC3 second electrical power supply equivalent to the production one. This AD... commenter, Air Line Pilots Association, International, supports the NPRM (76 FR 79560, December 22, 2011...

  13. 77 FR 16492 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-03-21

    ... production line, some nuts Part Number (P/N) ASNA2531-4 were found cracked. Investigations were performed to... Ralhan, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind... production on the fuel tank area of aeroplanes listed in the applicability section of this AD. Static...

  14. 77 FR 17327 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-03-26

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2011-1087; Directorate Identifier 2011-NM-032-AD; Amendment 39-16967; AD 2012-04-11] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes...

  15. 78 FR 46536 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-08-01

    ... require modifying the profile of stringer run-outs at rib 14 of both wings, including a high frequency..., Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW... profile of 60 work-hours x $85 None $5,100 $147,900 stringer run-outs. per hour = $5,100. We have received...

  16. 78 FR 70207 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-11-25

    ... INFORMATION CONTACT: Dan Rodina, Aerospace Engineer, International Branch, ANM-116, Transport Airplane... requirements.'' Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds...

  17. 77 FR 10409 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-02-22

    ..., International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, Washington... that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in...

  18. 77 FR 58785 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-09-24

    ..., Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW..., Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air...

  19. 77 FR 26154 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-05-03

    ... CONTACT: Dan Rodina, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate... requirements.'' Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds...

  20. 77 FR 69391 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-11-19

    ..., International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, WA 98057-3356... the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. This...

  1. 77 FR 36146 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-06-18

    ... airplanes. That AD currently requires modifying the wiring in the right-hand electronics rack. This new AD... sensors and their harness connectors according to the instructions of these SBs is now possible. This AD... electronics rack in accordance with the Accomplishment Instructions of Airbus Mandatory Service Bulletin A300...

  2. Developing aircraft photonic networks for airplane systems

    DEFF Research Database (Denmark)

    White, Henry J.; Brownjohn, Nick; Baptista, João

    2013-01-01

    Achieving affordable high speed fiber optic communication networks for airplane systems has proved to be challenging. In this paper we describe a summary of the EU Framework 7 project DAPHNE (Developing Aircraft Photonic Networks). DAPHNE aimed to exploit photonic technology from terrestrial comm...

  3. 77 FR 30228 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-05-22

    ... Member States of the European Community, has issued EASA Airworthiness Directive 2011-0086, dated May 12...), 40113, 44701. Sec. 39.13 2. The FAA amends Sec. 39.13 by adding the following new AD: The Boeing Company... accordance with a method approved by the Manager, International Branch, ANM-116, Transport Airplane...

  4. 77 FR 39186 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-07-02

    ... (EASA), which is the Technical Agent for the Member States of the European Community, has issued EASA... Bulletin A320-25-1724, dated December 17, 2010 (for Model A318 series airplanes). Air Cruisers Company has... Manager, International Branch, ANM-116, FAA, has the authority to approve AMOCs for this AD, if requested...

  5. 78 FR 64159 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-10-28

    ..., Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW... that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by... terminating action for the repetitive inspections required by paragraph (h) of this AD. (j) Definition of...

  6. 78 FR 23105 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-04-18

    ... INFORMATION CONTACT: Vladimir Ulyanov, Aerospace Engineer, International Branch, ANM-116, Transport Airplane... that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by... actions have already been done. (g) Definitions (1) For the purpose of this AD, an affected MLG wheel axle...

  7. 78 FR 31386 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-05-24

    ..., January 28, 2010] required one-time detailed inspections under the bogie stop pad of both MLG bogie beams... pad were found corroded and a few cracked as a result of the one-time inspection required by EASA AD... A340-200, -300, -500, and -600 series airplanes. That AD currently requires a one-time detailed...

  8. 78 FR 58975 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-09-25

    ... proximity sensor, can be conclusively determined from that review. (1) Airplanes on which Airbus... a certain combination of a target/proximity sensor serial number is installed on a flap... target and proximity sensor if applicable, and replacing or re-identifying the flap interconnecting strut...

  9. 78 FR 51058 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-08-20

    ... structural fatigue tests, several cases of structural damage (cracks) have been found on keel beam side... an eddy current non-destructive test (NDT) inspection to detect cracks in the keel beam side panels... series airplanes. AD 2004-13-06 required repetitive detailed inspections to detect cracks in the keel...

  10. 78 FR 14162 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-03-05

    ...-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, WA 98057-3356; telephone (425... (MCAI) states: Following a design review of the fuel tank access covers and further analyses aiming at.... Comments We gave the public the opportunity to participate in developing this AD. We received no comments...

  11. 77 FR 46937 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-08-07

    ... INFORMATION CONTACT: Dan Rodina, Aerospace Engineer, International Branch, ANM-116, Transport Airplane... attachment. The aim of the Emergency Airworthiness Directive (EAD) 2006-0372-E [which corresponds to FAA AD... in the AD docket. Comments We gave the public the opportunity to participate in developing this AD...

  12. 77 FR 57484 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-09-18

    ... Ulyanov, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind... Rolls Royce Trent 700 engines. The aim of the n rale de l'Aviation Civile] (DGAC) France AD F-2001-528... further information by examining the MCAI in the AD docket. Comments We gave the public the opportunity to...

  13. 78 FR 27015 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-05-09

    ...-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, Washington 98057-3356..., potentially reduce the controllability of the aeroplane. The aim of EASA AD 2007-0009 was to: --take over the... further information by examining the MCAI in the AD docket. Comments We gave the public the opportunity to...

  14. 78 FR 41286 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-07-10

    ... [landing gear control interface unit] and an internal hydraulic leak through the landing gear (LG) selector..., and A321 series airplanes. This AD was prompted by a report of an uncommanded nose landing gear (NLG) retraction. This AD requires installing a power interruption protection circuit for the landing gear control...

  15. 77 FR 60331 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-10-03

    ...] and an internal hydraulic leak through the landing gear (LG) selector valve 40GA. Deeper... A321 series airplanes. This proposed AD was prompted by a report of an uncommanded nose landing gear... the landing gear control interface unit (LGCIU). We are proposing this AD to prevent untimely...

  16. Flying spin qualities testing of airplane

    Directory of Open Access Journals (Sweden)

    Kostić Čedomir J.

    2015-01-01

    Full Text Available In this paper is presented the theoretical analysis of origins and characteristics of spinning motion. There are precise explanation of every stage spin flight and basic meaning of notion. Personated equation of motion in spin and equitation of motion airplane in settled spin motion, analysis of them and general recommendation for pilots for recovering from spins. Introduced in valid military and civil specifications flight test demonstration requirements for departure resistance and flying stall and spin qualities testing of airplane. Special attention was given on predicting departure, stall and spin susceptibility and theoretical analysis in the name of magnify flight testing security. There are explanation of test equipment and methodology of flying qualities testing of airplanes. Like a support of this theme are described method and results of flight stall and spin qualities testing of airplane G-4(N-62 super see-gull with precise recommendation for pilots for recovering from spins, from TOC SLI VS (Technical testing center, department for fight testing Air Force of Serbia.

  17. 77 FR 5726 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-02-06

    ... may review copies of the referenced service information at the FAA, Transport Airplane Directorate... regulatory, economic, environmental, and energy aspects of this proposed AD. We will consider all comments... proposed AD. Discussion The European Aviation Safety Agency (EASA), which is the Technical Agent for the...

  18. 77 FR 5728 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-02-06

    ... review copies of the referenced service information at the FAA, Transport Airplane Directorate, 1601 Lind..., ] economic, environmental, and energy aspects of this proposed AD. We will consider all comments received by... AD. Discussion The European Aviation Safety Agency (EASA), which is the Technical Agent for the...

  19. 77 FR 65799 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-10-31

    ... Association (ATA) of America Code 29: Hydraulic Power. (e) Reason This AD was prompted by reports of the ram... series airplanes. This AD was prompted by reports of the ram air turbine (RAT) not deploying when tested... test flight, a Ram Air Turbine (RAT) did not deploy when tested. An investigation, conducted by the RAT...

  20. 77 FR 36209 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2012-06-18

    ... series airplanes. This proposed AD was prompted by reports of the ram air turbine (RAT) not deploying... production test flight, a Ram Air Turbine (RAT) did not deploy when tested. An investigation, conducted by.... (d) Subject Air Transport Association (ATA) of America Code 29: Hydraulic Power. (e) Reason This AD...

  1. 78 FR 29666 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-05-21

    ...We propose to adopt a new airworthiness directive (AD) for certain Airbus Model A330-200 and -300 series airplanes; Model A340-200 and -300 series airplanes; and Model A340-541 and -642 airplanes. This proposed AD was prompted by reports of wing tip brakes (WTBs) losing their braking function in service due to heavy wear on the brake discs. WTBs are designed to stop and hold the mechanical transmission of slats and flaps in certain failure cases. This proposed AD would require repetitive operational tests of certain WTB pressure-off-brakes (POBs) for performance on the flap and slat systems, and replacement of any affected WTB with a new or serviceable part if the test fails. This proposed AD would also require eventual replacement of all affected WTBs with a new part, which would terminate the repetitive tests. We are proposing this AD to prevent loss of the WTB braking function, and consequent inability of the flap or slat system to be stopped and held in position during operation, which could result in loss of control of the airplane.

  2. 78 FR 53635 - Airworthiness Directives; Airbus Airplanes

    Science.gov (United States)

    2013-08-30

    ...We are adopting a new airworthiness directive (AD) for certain Airbus Model A330-200 and -300 series airplanes; Model A340-200 and - 300 series airplanes; and Model A340-541 and -642 airplanes. This final rule was prompted by reports of wing tip brakes (WTBs) losing their braking function in service due to heavy wear on the brake discs. WTBs are designed to stop and hold the mechanical transmission of slats and flaps in certain failure cases. This final rule requires repetitive operational tests of certain WTB pressure-off-brakes (POBs) for performance on the flap and slat systems, and replacement of any affected WTB with a new or serviceable part if the test fails. This final rule also requires eventual replacement of all affected WTBs with a new part, which terminates the repetitive tests. We are issuing this final rule to prevent loss of the WTB braking function, and consequent inability of the flap or slat system to be stopped and held in position during operation, which could result in loss of control of the airplane.

  3. Description of a Normal-Force In-Situ Turbulence Algorithm for Airplanes

    Science.gov (United States)

    Stewart, Eric C.

    2003-01-01

    A normal-force in-situ turbulence algorithm for potential use on commercial airliners is described. The algorithm can produce information that can be used to predict hazardous accelerations of airplanes or to aid meteorologists in forecasting weather patterns. The algorithm uses normal acceleration and other measures of the airplane state to approximate the vertical gust velocity. That is, the fundamental, yet simple, relationship between normal acceleration and the change in normal force coefficient is exploited to produce an estimate of the vertical gust velocity. This simple approach is robust and produces a time history of the vertical gust velocity that would be intuitively useful to pilots. With proper processing, the time history can be transformed into the eddy dissipation rate that would be useful to meteorologists. Flight data for a simplified research implementation of the algorithm are presented for a severe turbulence encounter of the NASA ARIES Boeing 757 research airplane. The results indicate that the algorithm has potential for producing accurate in-situ turbulence measurements. However, more extensive tests and analysis are needed with an operational implementation of the algorithm to make comparisons with other algorithms or methods.

  4. 78 FR 61161 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-10-03

    ... new airworthiness directive (AD) for certain The Boeing Company Model DC-10-10 and MD-10-10F airplanes... reinstallation of a reduced life bolt on other Model DC-10-10 and MD-10-10 airplanes. Subsequent paragraphs have...) Applicability This AD applies to The Boeing Company Model DC-10-10 and MD-10- 10F airplanes, certificated in any...

  5. Weight estimation techniques for composite airplanes in general aviation industry

    Science.gov (United States)

    Paramasivam, T.; Horn, W. J.; Ritter, J.

    1986-01-01

    Currently available weight estimation methods for general aviation airplanes were investigated. New equations with explicit material properties were developed for the weight estimation of aircraft components such as wing, fuselage and empennage. Regression analysis was applied to the basic equations for a data base of twelve airplanes to determine the coefficients. The resulting equations can be used to predict the component weights of either metallic or composite airplanes.

  6. A Benefit Analysis of Infusing Wireless into Aircraft and Fleet Operations - Report to Seedling Project Efficient Reconfigurable Cockpit Design and Fleet Operations Using Software Intensive, Network Enabled, Wireless Architecture (ECON)

    Science.gov (United States)

    Alexandrov, Natalia; Holmes, Bruce J.; Hahn, Andrew S.

    2016-01-01

    We report on an examination of potential benefits of infusing wireless technologies into various areas of aircraft and airspace operations. The analysis is done in support of a NASA seedling project Efficient Reconfigurable Cockpit Design and Fleet Operations Using Software Intensive, Network Enabled Wireless Architecture (ECON). The study has two objectives. First, we investigate one of the main benefit hypotheses of the ECON proposal: that the replacement of wired technologies with wireless would lead to significant weight reductions on an aircraft, among other benefits. Second, we advance a list of wireless technology applications and discuss their system benefits. With regard to the primary hypothesis, we conclude that the promise of weight reduction is premature. Specificity of the system domain and aircraft, criticality of components, reliability of wireless technologies, the weight of replacement or augmentation equipment, and the cost of infusion must all be taken into account among other considerations, to produce a reliable estimate of weight savings or increase.

  7. Advanced Subsonic Airplane Design and Economic Studies

    Science.gov (United States)

    Liebeck, Robert H.; Andrastek, Donald A.; Chau, Johnny; Girvin, Raquel; Lyon, Roger; Rawdon, Blaine K.; Scott, Paul W.; Wright, Robert A.

    1995-01-01

    A study was made to examine the effect of advanced technology engines on the performance of subsonic airplanes and provide a vision of the potential which these advanced engines offered. The year 2005 was selected as the entry-into-service (EIS) date for engine/airframe combination. A set of four airplane classes (passenger and design range combinations) that were envisioned to span the needs for the 2005 EIS period were defined. The airframes for all classes were designed and sized using 2005 EIS advanced technology. Two airplanes were designed and sized for each class: one using current technology (1995) engines to provide a baseline, and one using advanced technology (2005) engines. The resulting engine/airframe combinations were compared and evaluated on the basis on sensitivity to basic engine performance parameters (e.g. SFC and engine weight) as well as DOC+I. The advanced technology engines provided significant reductions in fuel burn, weight, and wing area. Average values were as follows: reduction in fuel burn = 18%, reduction in wing area = 7%, and reduction in TOGW = 9%. Average DOC+I reduction was 3.5% using the pricing model based on payload-range index and 5% using the pricing model based on airframe weight. Noise and emissions were not considered.

  8. 78 FR 43766 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-07-22

    ... cracking of the rear spar upper chord radius; for certain other airplanes, repetitive inspections for..., repetitive inspections for cracking of the rear spar upper chord radius; for certain other airplanes... product operators Inspection 67 work-hours x $85 $0 $5,695 per inspection $558,110 per per hour = $5,695...

  9. 78 FR 44871 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Science.gov (United States)

    2013-07-25

    ... the introduction of an emergency procedure to the Aeroplane Flight Manual (AFM) to address the above... airplane flight manual (AFM) by incorporating an emergency procedure for uncommanded yaw motion. This AD was prompted by reports of airplanes experiencing uncommanded rudder movements while in flight. We are...

  10. Application of composite materials in structures of modern airplanes

    Directory of Open Access Journals (Sweden)

    В.В. Астанін

    2004-03-01

    Full Text Available  The application efficiency  of composite plastic materials in structures of modern civil and military airplanes are investigated. Detaled analisys of Antonov branch airplanes is presented on general diagrams. The 25–27%  diaposon of the mass reduction that was achieved due to composite materials application is determined.

  11. 78 FR 12991 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-02-26

    ... elevator surface, resulting in a significant pitch upset and possible loss of control of the airplane... reducing the cost impact on affected individuals. We do not control warranty coverage for affected... surface, resulting in a significant pitch upset and possible loss of control of the airplane. (f...

  12. 77 FR 16488 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Science.gov (United States)

    2012-03-21

    ...-100, DHC-8-200, and DHC-8-300 series airplanes. This proposed AD was prompted by reports of hydraulic... caps, which could result in loss of the number 2 hydraulic system and damage to airplane structures... the overall regulatory, economic, environmental, and energy aspects of this proposed AD. We will...

  13. 77 FR 42956 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Science.gov (United States)

    2012-07-23

    ... (CRJ) aeroplanes, resulting in loss of the associated hydraulic system and high-energy impact damage to... DHC-8-100, DHC-8-200, and DHC-8-300 series airplanes. This AD was prompted by reports of hydraulic..., which could result in loss of the number 2 hydraulic system and damage to airplane structures, and could...

  14. Airplane Reading edited by Christopher Schaberg and Mark Yakich

    NARCIS (Netherlands)

    Saramifar, Y.

    2017-01-01

    Airplanes and airports take on a different air, at least for me, when a cultural theorist and a poet edit a volume about them. Airplane Reading is a selection of stories collected from an online initiative by Schaberg and Yakich under the same title. Te book pushes the boundaries of academic text

  15. Application of composite materials in structures of modern airplanes

    OpenAIRE

    В.В. Астанін; А.В. Хоменко; ШЕВЧЕНКО О.А.

    2004-01-01

     The application efficiency  of composite plastic materials in structures of modern civil and military airplanes are investigated. Detaled analisys of Antonov branch airplanes is presented on general diagrams. The 25–27%  diaposon of the mass reduction that was achieved due to composite materials application is determined.

  16. 77 FR 39188 - Airworthiness Directives; the Boeing Company Airplanes

    Science.gov (United States)

    2012-07-02

    ... number 989. CAL stated that, in the Boeing 767 Airplane Maintenance Manual there are two fuel pump wire... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; the Boeing Company... directive (AD) to supersede an existing AD for all The Boeing Company Model 767 airplanes. The existing AD...

  17. 77 FR 64696 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-10-23

    ... installing an unmodified wing panel on that airplane. Delta justified its request by stating that the lack of... series airplanes. This AD was prompted by a design review following a ground fire incident and reports of flammable fluid leaks from the wing leading edge area onto the engine exhaust area. This AD requires...

  18. 78 FR 14644 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-03-07

    ... Clarify Airplane Maintenance Data Delta pointed to inconsistencies between the type design data and the... fuel vapors, could result in a center wing fuel tank explosion, and consequent loss of the airplane... same clamp position. Delta Air Lines (Delta) requested that we ensure that paragraph (h) of the NPRM...

  19. 78 FR 73739 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-12-09

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; The Boeing Company... all The Boeing Company Model MD-90- 30 airplanes. AD 97-11-07 and AD 99-18-23 currently require..., 1997), for all The Boeing Company Model MD-90-30 airplanes. AD 97-11-07 requires revising the...

  20. 78 FR 72791 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-12-04

    ...-17692; AD 2013-24-15] RIN 2120-AA64 Airworthiness Directives; The Boeing Company Airplanes AGENCY... Directive (AD) 2007-11-08 for all The Boeing Company Model 727 airplanes. AD 2007-11-08 required repetitive... received. The Boeing Company stated that it supports the SNPRM (78 FR 49217, August 13, 2013). Conclusion...

  1. 78 FR 26286 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-05-06

    ... Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Supplemental notice of... airworthiness directive (AD) for all The Boeing Company Model 717-200 airplanes. That NPRM proposed requiring... rulemaking (NPRM) to amend 14 CFR part 39 to include an AD that would apply to all The Boeing Company Model...

  2. 78 FR 53078 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-08-28

    ... Directives; The Boeing Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice... certain The Boeing Company Model 747-200B, -200C, -200F, -300, and 747SR series airplanes. This proposed... directive (AD): The Boeing Company: Docket No. FAA-2013-0704; Directorate Identifier 2013-NM-074-AD. (a...

  3. 78 FR 57542 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-09-19

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; The Boeing Company... Boeing Company Model 777-200 and -300 series airplanes. AD 2012-12-08 requires an inspection for the part..., 2012) (``AD 2012-12-08''), for certain The Boeing Company Model 777-200 and -300 series airplanes. (A...

  4. 78 FR 14722 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-03-07

    ... Maintenance Planning Data (MPD) Document. Request To Include Corrective Action Boeing asked that additional... directive (AD) for all The Boeing Company Model 777 airplanes. That NPRM proposed to require performing... necessary. That NPRM was prompted by reports of two in-service occurrences on Model 737-400 airplanes of...

  5. 77 FR 73897 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-12-12

    ... in accordance with the requirements of this AD. The current Boeing Model 757 airplane maintenance... airworthiness directive (AD) for certain The Boeing Company Model 757 airplanes. This AD was prompted by a... for damage, and corrective actions if necessary. This AD allows replacing an affected windshield with...

  6. 78 FR 21279 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-04-10

    ... the maintenance program. This proposed AD also would add Model 737-200C and 737-300 series airplanes... corrective actions before further flight. (h) Maintenance Program Revision Within 60 days after the effective... Boeing Company Model 737-100 and -200 series airplanes. The existing AD currently requires replacement of...

  7. 78 FR 49232 - Airworthiness Directives; Learjet Inc. Airplanes

    Science.gov (United States)

    2013-08-13

    ... Inc. Model 60 airplanes. The existing AD currently requires determining if a certain fuel crossflow tube is installed; and follow-on/corrective actions, as applicable. Since we issued that AD, we have... that the minimum allowable clearance is not established in the airplane maintenance information, and...

  8. 77 FR 70357 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-11-26

    ... clamp made of nickel alloy 625. This AD also adds airplanes to the applicability. This AD was prompted... includes an integral support clamp made of nickel alloy 625. That NPRM also proposed to add airplanes to... support clamps on the aft fairing of the engine struts. This new AD requires replacing the drain tube...

  9. 78 FR 60660 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-10-02

    ... review copies of the referenced service information at the FAA, Transport Airplane Directorate, 1601 Lind... other than chem-milled cracking. SWA stated certain conditions for external repairs are not stipulated... any operator or increase the scope of this AD. Costs of Compliance We estimated that 903 airplanes of...

  10. 78 FR 39574 - Airworthiness Directives; Learjet Inc. Airplanes

    Science.gov (United States)

    2013-07-02

    ... external damage, particularly from tire failure, which could result in loss of control of the airplane... . You may review copies of the referenced service information at the FAA, Transport Airplane Directorate..., we might consider additional rulemaking. Costs of Compliance We estimate that this AD affects 275...

  11. 77 FR 15640 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-03-16

    ... cracks in the skin and surrounding structure under the number 3 VHF antenna on the lower external surface... information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, Washington. For... Boeing. Costs of Compliance We estimate that this proposed AD will affect 629 airplanes of U.S. registry...

  12. 77 FR 32918 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-06-04

    ....myboeingfleet.com . You may review copies of the referenced service information at the FAA, Transport Airplane... repetitive inspections (detailed, external low frequency eddy current (LFEC), or internal LFEC) for cracks..., Seattle ACO, within 120 days. Costs of Compliance We estimate that this proposed AD affects 61 airplanes...

  13. 78 FR 61220 - Airworthiness Directives; Dassault Aviation Airplanes

    Science.gov (United States)

    2013-10-03

    ....aviationpartners.com . You may review copies of the referenced service information at the FAA, Transport Airplane..., Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, WA 98057-3356; telephone (425) 227-1137... Service Information Dassault Aviation has issued Revision 15 to the Falcon 2000EX EASy, 2000DX, and 2000LX...

  14. 77 FR 41041 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-07-12

    ...-17111; AD 2012-13-09] RIN 2120-AA64 Airworthiness Directives; The Boeing Company Airplanes AGENCY...-200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, 747SR, and 747SP series airplanes. This AD was... window 1. This AD requires repetitive inspections for damage of the electrical connections at terminal...

  15. 78 FR 30243 - Airworthiness Directives; Eclipse Aerospace, Inc. Airplanes

    Science.gov (United States)

    2013-05-22

    ... Directives; Eclipse Aerospace, Inc. Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION... all Eclipse Aerospace, Inc. Model EA500 airplanes equipped with Avio, Avio with ETT, or Avio NG 1.0... identified in this proposed AD, contact Eclipse Aerospace, Inc. 26 East Palatine Road, Wheeling, Illinois...

  16. 76 FR 55614 - Airworthiness Directives; Pacific Aerospace Limited Airplanes

    Science.gov (United States)

    2011-09-08

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Pacific Aerospace... (AD) for Pacific Aerospace Limited Models FU24-954 and FU24A-954 airplanes modified with an unapproved... INFORMATION CONTACT: Karl Schletzbaum, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room...

  17. 78 FR 22182 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-04-15

    ... distributed as spare parts, other factors make identification of the affected airplanes difficult. Stabilizers... of airplane maintenance records is acceptable in lieu of this inspection if the part number of the... Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2012-0933; Directorate Identifier 2012-NM...

  18. 77 FR 46946 - Airworthiness Directives; Dassault Aviation Airplanes

    Science.gov (United States)

    2012-08-07

    ... FALCON 7X airplanes. This AD was prompted by a report that a passenger oxygen pipe at frame 10 was... AD applies to Dassault Aviation Model FALCON 7X airplanes, certificated in any category, serial... passenger oxygen distribution system. (f) Compliance You are responsible for having the actions required by...

  19. 78 FR 29669 - Airworthiness Directives; DASSAULT AVIATION Airplanes

    Science.gov (United States)

    2013-05-21

    ... Model FAN JET FALCON, FAN JET FALCON SERIES C, D, E, F, and G airplanes; Model MYSTERE-FALCON 200... Bulletin F20-785, dated June 11, 2012 (for Model FAN JET FALCON, FAN JET FALCON SERIES C, D, E, F, and G... Maintenance Manual (for Model FAN JET FALCON, FAN JET FALCON SERIES C, D, E, F, and G airplanes; and Model...

  20. 78 FR 23458 - Airworthiness Directives; Dassault Aviation Airplanes

    Science.gov (United States)

    2013-04-19

    ... Dassault Aviation Model FALCON 7X airplanes. This AD requires revising the aircraft flight manual (AFM... Dassault Aviation Model Falcon 7X airplanes, certificated in any category, all serial numbers (S/Ns). (d... flight crew. (f) Compliance You are responsible for having the actions required by this AD performed...

  1. 78 FR 9798 - Airworthiness Directives; Dassault Aviation Airplanes

    Science.gov (United States)

    2013-02-12

    ... Mystere-Falcon 50 airplanes. This AD was prompted by a manufacturer revision to the airplane maintenance... requirements for the Myst re-Falcon 50 (MF50) type design are included in Dassault Aviation Myst re-Falcon 50... de l'Aviation Civile] France AD F-2004-162 (EASA approval number 2004-10117). A new CPCP approach is...

  2. 78 FR 45898 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-07-30

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; The Boeing Company... directive (AD) for all The Boeing Company Model 777-200, -200LR, -300, and -300ER series airplanes. That... Boeing Company Model 777-200, -200LR, -300, and -300ER series airplanes. The earlier SNPRM published in...

  3. 78 FR 10499 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-02-14

    ...-17353; AD 2013-03-19] RIN 2120-AA64 Airworthiness Directives; The Boeing Company Airplanes AGENCY... airworthiness directive (AD) for certain The Boeing Company Model 707 airplanes, and Model 720 and 720B series... following new AD: 2013-03-19 The Boeing Company: Amendment 39-17353; Docket No. FAA- 2012-1110; Directorate...

  4. 77 FR 67561 - Airworthiness Directives; Univair Aircraft Corporation Airplanes

    Science.gov (United States)

    2012-11-13

    ... Corporation Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule; correction...; (Forney) F-1 and F-1A; (Alon) A-2 and A2-A; and (Mooney) M10 airplanes. All references to Ercoupe Service... Models (ERCO) 415-C, 415-CD, 415-D, E, G; (Forney) F-1 and F-1A; (Alon) A-2 and A2-A, and (Mooney) M10...

  5. 77 FR 52205 - Airworthiness Directives; Univair Aircraft Corporation Airplanes

    Science.gov (United States)

    2012-08-29

    ... Corporation Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are...) 415-C, 415-CD, 415-D, E, G; (Forney) F-1 and F-1A; (Alon) A-2 and A2-A; and (Mooney) M10 airplanes...'' under DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will not affect...

  6. 78 FR 17290 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-03-21

    ... the referenced service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW... Airworthiness Limitations section of the Instructions for Continued Airworthiness. Comments We gave the public... to exclude airplanes with Airline Information Management System (AIMS) V1 installed from the...

  7. Variable-Structure Control of a Model Glider Airplane

    Science.gov (United States)

    Waszak, Martin R.; Anderson, Mark R.

    2008-01-01

    A variable-structure control system designed to enable a fuselage-heavy airplane to recover from spin has been demonstrated in a hand-launched, instrumented model glider airplane. Variable-structure control is a high-speed switching feedback control technique that has been developed for control of nonlinear dynamic systems.

  8. 78 FR 22435 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-04-16

    ... the action of repeated stresses. This can happen because of normal operational conditions and design...). As an airplane ages, WFD will likely occur, and will certainly occur if the airplane is operated long.... inspection cycle $22,015 per inspection cycle. We have received no definitive data that would enable us to...

  9. 78 FR 54561 - Airworthiness Directives; Piper Aircraft, Inc. Airplanes

    Science.gov (United States)

    2013-09-05

    ...-17457; AD 2013-10-04] RIN 2120-AA64 Airworthiness Directives; Piper Aircraft, Inc. Airplanes AGENCY... an airworthiness directive (AD) that published in the Federal Register. That AD applies to all Piper... airplane exhaust system, and repair or replacement of parts as necessary for all Piper Aircraft, Inc...

  10. Topological estimation of aerodynamic controlled airplane system functionality of quality

    Directory of Open Access Journals (Sweden)

    С.В. Павлова

    2005-01-01

    Full Text Available  It is suggested to use topological methods for stage estimation of aerodynamic airplane control in widespread range of its conditions The estimation is based on normalized stage virtual non-isotropy of configurational airplane systems calculation.

  11. 14 CFR 91.219 - Altitude alerting system or device: Turbojet-powered civil airplanes.

    Science.gov (United States)

    2010-01-01

    ...: Turbojet-powered civil airplanes. 91.219 Section 91.219 Aeronautics and Space FEDERAL AVIATION... system or device: Turbojet-powered civil airplanes. (a) Except as provided in paragraph (d) of this section, no person may operate a turbojet-powered U.S.-registered civil airplane unless that airplane is...

  12. 14 CFR 23.1045 - Cooling test procedures for turbine engine powered airplanes.

    Science.gov (United States)

    2010-01-01

    ... powered airplanes. 23.1045 Section 23.1045 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... CATEGORY AIRPLANES Powerplant Cooling § 23.1045 Cooling test procedures for turbine engine powered airplanes. (a) Compliance with § 23.1041 must be shown for all phases of operation. The airplane must be...

  13. 14 CFR 91.863 - Transfers of Stage 2 airplanes with base level.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Transfers of Stage 2 airplanes with base... Noise Limits § 91.863 Transfers of Stage 2 airplanes with base level. (a) Stage 2 airplanes may be... the corresponding number of Stage 2 airplanes. (b) No portion of a U.S. operator's base level...

  14. 14 CFR 135.398 - Commuter category airplanes performance operating limitations.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Commuter category airplanes performance... ON BOARD SUCH AIRCRAFT Airplane Performance Operating Limitations § 135.398 Commuter category airplanes performance operating limitations. (a) No person may operate a commuter category airplane unless...

  15. 14 CFR 135.389 - Large nontransport category airplanes: Takeoff limitations.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Large nontransport category airplanes... ON BOARD SUCH AIRCRAFT Airplane Performance Operating Limitations § 135.389 Large nontransport category airplanes: Takeoff limitations. (a) No person operating a large nontransport category airplane may...

  16. 14 CFR 23.1047 - Cooling test procedures for reciprocating engine powered airplanes.

    Science.gov (United States)

    2010-01-01

    ... engine powered airplanes. 23.1047 Section 23.1047 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... CATEGORY AIRPLANES Powerplant Cooling § 23.1047 Cooling test procedures for reciprocating engine powered airplanes. Compliance with § 23.1041 must be shown for the climb (or, for multiengine airplanes with...

  17. 14 CFR 121.1105 - Aging airplane inspections and records reviews.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Aging airplane inspections and records... Improvements § 121.1105 Aging airplane inspections and records reviews. (a) Applicability. This section applies to all airplanes operated by a certificate holder under this part, except for those airplanes...

  18. 14 CFR 91.605 - Transport category civil airplane weight limitations.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Transport category civil airplane weight... civil airplane weight limitations. (a) No person may take off any transport category airplane (other than a turbine-engine-powered airplane certificated after September 30, 1958) unless— (1) The takeoff...

  19. Impact of changing fuel characteristics on supersonic cruise airplane

    Science.gov (United States)

    Hadaller, O. J.; Schmidt, J. E.; Momenthy, A. M.; Johnson, P. E.

    1980-01-01

    The question of an advanced supersonic cruise research airplane is related to future oil supplies and prices. Technical data on the impact of changing fuel characteristics on the SCR airplane were developed. Projections of crude oil characteristics typical of the 1985 to 2000 time period were made with the help of consultants to the oil industry. Refineries for the future were modeled to establish jet fuel of engine and aircraft systems for future airplanes, with emphasis on supersonic cruise airplanes. Study results do not show a need for broadening the fuel specification. Hypothetical study fuels with broader specifications were defined, however, as was the impact of their properties on the SCR airplane and systems.

  20. It's time to reinvent the general aviation airplane

    Science.gov (United States)

    Stengel, Robert F.

    1988-01-01

    Current designs for general aviation airplanes have become obsolete, and avenues for major redesign must be considered. New designs should incorporate recent advances in electronics, aerodynamics, structures, materials, and propulsion. Future airplanes should be optimized to operate satisfactorily in a positive air traffic control environment, to afford safety and comfort for point-to-point transportation, and to take advantage of automated manufacturing techniques and high production rates. These requirements have broad implications for airplane design and flying qualities, leading to a concept for the Modern Equipment General Aviation (MEGA) airplane. Synergistic improvements in design, production, and operation can provide a much needed fresh start for the general aviation industry and the traveling public. In this investigation a small four place airplane is taken as the reference, although the proposed philosophy applies across the entire spectrum of general aviation.

  1. Adapting Modeling & SImulation for Network Enabled Operations

    Science.gov (United States)

    2011-03-01

    fatigued from six days with little shelter on the slopes of Sussex moun- tain, and by an 18Km march to the battlefield with little sleep . They were...from the US 5th Army under JTF Katrina assisted FEMA in identifying what DoD assist- ance was needed. It also helped the PFO (Principal Federal...to change the posture, is to decide whether such a change is both feasible and desirable. This is partly the result of command inertia , as once in

  2. Commercial applications

    Science.gov (United States)

    The near term (one to five year) needs of domestic and foreign commercial suppliers of radiochemicals and radiopharmaceuticals for electromagnetically separated stable isotopes are assessed. Only isotopes purchased to make products for sale and profit are considered. Radiopharmaceuticals produced from enriched stable isotopes supplied by the Calutron facility at ORNL are used in about 600,000 medical procedures each year in the United States. A temporary or permanent disruption of the supply of stable isotopes to the domestic radiopharmaceutical industry could curtail, if not eliminate, the use of such diagnostic procedures as the thallium heart scan, the gallium cancer scan, the gallium abscess scan, and the low radiation dose thyroid scan. An alternative source of enriched stable isotopes exist in the USSR. Alternative starting materials could, in theory, eventually be developed for both the thallium and gallium scans. The development of a new technology for these purposes, however, would take at least five years and would be expensive. Hence, any disruption of the supply of enriched isotopes from ORNL and the resulting unavailability of critical nuclear medicine procedures would have a dramatic negative effect on the level of health care in the United States.

  3. Automatic Life Saving Device in Commercial Aircrafts using Feedback Control System

    Directory of Open Access Journals (Sweden)

    Tennyson Samuel John

    2011-11-01

    Full Text Available Several safety devices have filled in the vacuous spaces in commercial airplanes which once did not possess such sophisticated mechanisms. Commercial airplanes have copious amount of instruments and electrical circuits to provide a proper control system inside the plane. A noteworthy invention in the early 80’s is the oxygen masks provided for every passenger during a plane crash or if the airplane is subjected to climatic disturbances while travelling a passenger manually uses the oxygen masks. The oxygen control system in the airplanes has proved very effective in providing an overall safety to the passengers. But the technique given below is far more advanced than the present scenario. A person suffering from a breathing ailment is succumbed to variations in the carbon dioxide levels. Thereby this CO2 is measured and using a feedback control loop, quick actions can be taken in order to provide quick aid to the ailing patient. These are completely automatic and hence it is advanced than the manual oxygen control system presently used in all commercial aircrafts. At the end of the day saving a life is what a humanistic approach is all about.

  4. Rapid Airplane Parametric Input Design (RAPID)

    Science.gov (United States)

    Smith, Robert E.

    1995-01-01

    RAPID is a methodology and software system to define a class of airplane configurations and directly evaluate surface grids, volume grids, and grid sensitivity on and about the configurations. A distinguishing characteristic which separates RAPID from other airplane surface modellers is that the output grids and grid sensitivity are directly applicable in CFD analysis. A small set of design parameters and grid control parameters govern the process which is incorporated into interactive software for 'real time' visual analysis and into batch software for the application of optimization technology. The computed surface grids and volume grids are suitable for a wide range of Computational Fluid Dynamics (CFD) simulation. The general airplane configuration has wing, fuselage, horizontal tail, and vertical tail components. The double-delta wing and tail components are manifested by solving a fourth order partial differential equation (PDE) subject to Dirichlet and Neumann boundary conditions. The design parameters are incorporated into the boundary conditions and therefore govern the shapes of the surfaces. The PDE solution yields a smooth transition between boundaries. Surface grids suitable for CFD calculation are created by establishing an H-type topology about the configuration and incorporating grid spacing functions in the PDE equation for the lifting components and the fuselage definition equations. User specified grid parameters govern the location and degree of grid concentration. A two-block volume grid about a configuration is calculated using the Control Point Form (CPF) technique. The interactive software, which runs on Silicon Graphics IRIS workstations, allows design parameters to be continuously varied and the resulting surface grid to be observed in real time. The batch software computes both the surface and volume grids and also computes the sensitivity of the output grid with respect to the input design parameters by applying the precompiler tool

  5. Image mosaicking from aerial unmanned airplane

    Science.gov (United States)

    Wang, Tao; Gong, Jianhua

    2008-10-01

    In this article, the SIFT method is employed to combine a lot of images together from aerial unmanned airplane, without any control points. And the image number of this method is smaller than that of the triangulation. SIFT feature, which has shown great success in computer vision, is introduced into image registration in remote sensing. We extract distinctive invariant features from images that can be used to perform reliable matching between different views of an object or scene. The features are invariant to image scale and rotation, they are well localized in both the spatial and frequency domains, reducing the probability of disruption by occlusion, clutter, or noise.

  6. Multiple-event airplane noise annoyance

    Science.gov (United States)

    Powell, C. A.

    1983-01-01

    The annoyance of sessions of airplane noise which contained different noise levels and numbers of flyovers was investigated. The time of occurrence of the high noise level flyovers in the sessions did not significantly affect annoyance, but annoyance increased with the number of such flyovers. Annoyance decreased with test session duration but increased with the total number of flyovers in the test sessions. It is found that the results support an average energy model better than a total energy model, the annoyance decay model, or the dB(A) peak concept.

  7. 14 CFR 36.9 - Acoustical change: Propeller-driven small airplanes and propeller-driven commuter category...

    Science.gov (United States)

    2010-01-01

    ... airplanes and propeller-driven commuter category airplanes. 36.9 Section 36.9 Aeronautics and Space FEDERAL... AIRWORTHINESS CERTIFICATION General § 36.9 Acoustical change: Propeller-driven small airplanes and propeller-driven commuter category airplanes. For propeller-driven small airplanes in the primary, normal, utility...

  8. Fuzzy Logic Decoupled Lateral Control for General Aviation Airplanes

    Science.gov (United States)

    Duerksen, Noel

    1997-01-01

    It has been hypothesized that a human pilot uses the same set of generic skills to control a wide variety of aircraft. If this is true, then it should be possible to construct an electronic controller which embodies this generic skill set such that it can successfully control different airplanes without being matched to a specific airplane. In an attempt to create such a system, a fuzzy logic controller was devised to control aileron or roll spoiler position. This controller was used to control bank angle for both a piston powered single engine aileron equipped airplane simulation and a business jet simulation which used spoilers for primary roll control. Overspeed, stall and overbank protection were incorporated in the form of expert systems supervisors and weighted fuzzy rules. It was found that by using the artificial intelligence techniques of fuzzy logic and expert systems, a generic lateral controller could be successfully used on two general aviation aircraft types that have very different characteristics. These controllers worked for both airplanes over their entire flight envelopes. The controllers for both airplanes were identical except for airplane specific limits (maximum allowable airspeed, throttle ]ever travel, etc.). This research validated the fact that the same fuzzy logic based controller can control two very different general aviation airplanes. It also developed the basic controller architecture and specific control parameters required for such a general controller.

  9. Fuzzy Logic Decoupled Longitudinal Control for General Aviation Airplanes

    Science.gov (United States)

    Duerksen, Noel

    1996-01-01

    It has been hypothesized that a human pilot uses the same set of generic skills to control a wide variety of aircraft. If this is true, then it should be possible to construct an electronic controller which embodies this generic skill set such that it can successfully control difference airplanes without being matched to a specific airplane. In an attempt to create such a system, a fuzzy logic controller was devised to control throttle position and another to control elevator position. These two controllers were used to control flight path angle and airspeed for both a piston powered single engine airplane simulation and a business jet simulation. Overspeed protection and stall protection were incorporated in the form of expert systems supervisors. It was found that by using the artificial intelligence techniques of fuzzy logic and expert systems, a generic longitudinal controller could be successfully used on two general aviation aircraft types that have very difference characteristics. These controllers worked for both airplanes over their entire flight envelopes including configuration changes. The controllers for both airplanes were identical except for airplane specific limits (maximum allowable airspeed, throttle lever travel, etc.). The controllers also handled configuration changes without mode switching or knowledge of the current configuration. This research validated the fact that the same fuzzy logic based controller can control two very different general aviation airplanes. It also developed the basic controller architecture and specific control parameters required for such a general controller.

  10. Rapid Airplane Parametric Input Design(RAPID)

    Science.gov (United States)

    Smith, Robert E.; Bloor, Malcolm I. G.; Wilson, Michael J.; Thomas, Almuttil M.

    2004-01-01

    An efficient methodology is presented for defining a class of airplane configurations. Inclusive in this definition are surface grids, volume grids, and grid sensitivity. A small set of design parameters and grid control parameters govern the process. The general airplane configuration has wing, fuselage, vertical tail, horizontal tail, and canard components. The wing, tail, and canard components are manifested by solving a fourth-order partial differential equation subject to Dirichlet and Neumann boundary conditions. The design variables are incorporated into the boundary conditions, and the solution is expressed as a Fourier series. The fuselage has circular cross section, and the radius is an algebraic function of four design parameters and an independent computational variable. Volume grids are obtained through an application of the Control Point Form method. Grid sensitivity is obtained by applying the automatic differentiation precompiler ADIFOR to software for the grid generation. The computed surface grids, volume grids, and sensitivity derivatives are suitable for a wide range of Computational Fluid Dynamics simulation and configuration optimizations.

  11. Annoyance due to multiple airplane noise exposure

    Science.gov (United States)

    Powell, C. A.

    1980-01-01

    A laboratory study was conducted to investigate the annoyance effects of multiple aircraft noise exposure in which 250 subjects judged the annoyance of half-hour periods of airplane noise simulative of typical indoor home exposures. The variables of the aircraft noise exposure were the peak noise level of flyovers, which was constant within each period, and the number of flyovers. Each subject judged 5 of the possible 25 factorial combinations of level and number. Other variables investigated included the experience of the test subjects in making annoyance judgments and their home exposure to airplane noise. The annoyance judgments increased with both noise level and number of flyovers. The increased annoyance produced by doubling the number of flyovers was found to be the equivalent of a 4 to 6 db increase in noise level. The sensitivity of the subjects to changes in both noise level and number of flyovers increased with laboratory experience. Although the means of the annoyance judgments made in the laboratory were found to decrease with the subjects' home exposure to aircraft noise, the subjects' sensitivities to changes in both level and number were unaffected by their home exposure.

  12. 78 FR 52836 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-08-27

    ... 2008, using the Boeing task cards or airplane maintenance manual (AMM). AA added that it continues to... required service bulletin, not for an AMM or task cards. Under the provisions of paragraph (h) of this...

  13. 78 FR 33193 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-06-04

    ... maintenance manual (AMM) associated with the service bulletin changes. Without such manual support, UPS... airplanes. The IPC and AMM are not FAA approved and are not used to control the configuration of the...

  14. Childhood headache attributed to airplane travel: a case report.

    Science.gov (United States)

    Rogers, Kirsty; Rafiq, Nadia; Prabhakar, Prab; Ahmed, Mas

    2015-05-01

    Headache attributed to airplane flights is a rare form of headache disorder. This case study describes an 11-year-old girl with recurrent, severe, frontal headaches occurring during airplane travel. The episodes were associated with dizziness and facial pallor but no additional symptoms and showed spontaneous resolution on landing. Blood tests and imaging revealed no abnormalities. The present case fulfils the criteria for airplane headache recently included in the revised edition of the International Classification of Headache Disorders (ICHD-III Beta). Only a few cases of airplane headache have been reported in children. To our knowledge, this is the fourth case. We review the current literature on this rare syndrome and discuss various proposed pathophysiological mechanisms. © The Author(s) 2014.

  15. Reversible cerebral vasoconstriction syndrome precipitated by airplane descent: Case report.

    Science.gov (United States)

    Hiraga, Akiyuki; Aotsuka, Yuya; Koide, Kyosuke; Kuwabara, Satoshi

    2017-10-01

    Background Reversible cerebral vasoconstriction syndrome (RCVS) is characterized by segmental vasospasm. Vasoactive agents and childbirth have been reported as precipitating factors for RCVS; however, RCVS induced by altitude change or air travel has rarely been reported. Case We present a case of a 74-year-old woman who presented with thunderclap headache during airplane descent. Magnetic resonance angiography demonstrated segmental vasoconstriction that improved 9 days after onset. Conclusion These findings indicate that airplane descent may be a trigger of RCVS. The time course of headache in the present case was similar to that of prolonged headache attributed to airplane travel, indicating that RCVS during air travel may have previously been overlooked and that some headache attributed to airplane travel cases may represent a milder form of RCVS.

  16. A Database Approach to Aircraft Carrier Airplan Production

    Science.gov (United States)

    1992-09-01

    a mirror image of the macro used to build the airplan templates. This will not be done, however, until the model is more thoroughly tested . 50 C...The spreadsheet environment is adequate for testing the idea but a program written with the single goal of airplan production would be much better. A...Tactical Air Reconnaissance Pod. 54 "* TNK Recovery Tanker. "* SVCS Services Provided to Another Asset. "* STK Strike (actual or simulated). "* YOYO

  17. The Airplane as an Open-Source Invention

    OpenAIRE

    Peter B. Meyer

    2013-01-01

    Airplanes were invented after decades of experimentation in many countries through a process we can call open-source innovation. Experimenters, inventors, and writers contributed to the airplane’s development by sharing information in publications, in clubs, by writing letters and by visiting. The hundreds of aeronautical patents before 1900 were treated like publications, not like claims to intellectual property. Inventors of modern airplanes copied earlier designs, analogously to advances i...

  18. Airplane headache: a further case report of a young man.

    Science.gov (United States)

    Domitrz, Izabela

    2010-12-01

    Headache with normal examinations and imaging, occurring during an airplane flight has been rarely reported. We present a young patient with a new type of headache that appeared during flights: take-off and landing of a plane and was not associated with other conditions. This airplane headache is rather rare in population and the pathophysiology of this type is not clear. Secondary causes must be ruled out before the diagnosis of a primary headache is made.

  19. STUDY OF THE AIR FLOWS AROUND AN AIRPLANE

    Directory of Open Access Journals (Sweden)

    Diaconescu Olivian

    2013-06-01

    Full Text Available This material presents a stage of the designing of an airplane capable to work with low capacity engines of 2.5 and 4 cmc namely the simulation of the air flow around the fuselage and the wings. The study proves the correctness of the choice made in the wing’s positioning and of the horizontal stabilizer of the airplane’s axis,for the chosen airplane type namely acrobat.

  20. Aerodynamic nacelle shape optimization for NAL's experimental airplane

    OpenAIRE

    Makino, Yoshikazu; Iwamiya, Toshiyuki; Lei, Zhong; 牧野 好和; 岩宮 敏幸; Lei, Zhong

    2007-01-01

    The numerical simulation of a Mach 2.0 scaled supersonic experimental airplane is conducted with the consideration of the integration between airframe and engine nacelles. A three-dimensional Euler CFD (Computational Fluid Dynamics) code with an overset-grids technique is adopted for solving the flow-field around a complex airplane configuration. The calculated pressure distributions are compared with wind tunnel test data and show good agreement with them. The aerodynamic design tool which c...

  1. Measured Engine Installation Effects of Four Civil Transport Airplanes

    Science.gov (United States)

    Senzig, David A.; Fleming, Gregg G.; Shepherd, Kevin P.

    2001-01-01

    The Federal Aviation Administration's Integrated Noise Model (INM) is one of the primary tools for land use planning around airports. The INM currently calculates airplane noise lateral attenuation using the methods contained in the Society of Automotive Engineer's Aerospace Information Report No. 1751 (SAE AIR 1751). Researchers have noted that improved lateral attenuation algorithms may improve airplane noise prediction. The authors of SAE AIR 1751 based existing methods on empirical data collected from flight tests using 1960s-technology airplanes with tail-mounted engines. To determine whether the SAE AIR 1751 methods are applicable for predicting the engine installation component of lateral attenuation for airplanes with wing-mounted engines, the National Aeronautics and Space Administration (NASA) sponsored a series of flight tests during September 2000 at their Wallops Flight Facility. Four airplanes, a Boeing 767-400, a Douglas DC-9, a Dassault Falcon 2000, and a Beech KingAir, were flown through a 20 microphone array. The airplanes were flown through the array at various power settings, flap settings, and altitudes to simulate take-off and arrival configurations. This paper presents the preliminary findings of this study.

  2. Simple Electromagnetic Modeling of Small Airplanes: Neural Network Approach

    Directory of Open Access Journals (Sweden)

    P. Tobola

    2009-04-01

    Full Text Available The paper deals with the development of simple electromagnetic models of small airplanes, which can contain composite materials in their construction. Electromagnetic waves can penetrate through the surface of the aircraft due to the specific electromagnetic properties of the composite materials, which can increase the intensity of fields inside the airplane and can negatively influence the functionality of the sensitive avionics. The airplane is simulated by two parallel dielectric layers (the left-hand side wall and the right-hand side wall of the airplane. The layers are put into a rectangular metallic waveguide terminated by the absorber in order to simulate the illumination of the airplane by the external wave (both of the harmonic nature and pulse one. Thanks to the simplicity of the model, the parametric analysis can be performed, and the results can be used in order to train an artificial neural network. The trained networks excel in further reduction of CPU-time demands of an airplane modeling.

  3. Revolution in airplane construction? Grob G110: The first modern fiber glass composition airplane shortly before its maiden flight

    Science.gov (United States)

    Dorpinghaus, R.

    1982-01-01

    A single engine two passenger airplane, constructed completely from fiber reinforced plastic materials is introduced. The cockpit, controls, wing profile, and landing gear are discussed. Development of the airframe is also presented.

  4. Electromagnetic compatibility and the all-electric airplane

    Science.gov (United States)

    Christman, Al

    1995-01-01

    NASA is studying the feasibility of installing 'all-electric' controls in future commercial aircraft, replacing the current hydraulic and pneumatic systems. Planes utilizing such equipment should weigh less and be cheaper to maintain, but might also be susceptible to interference from undesired external electromagnetic fields. Possible sources of these extraneous signals include radio and television broadcasters, two-way communications stations, and radar installations of all kinds. One way to reduce the hazard would be to use fiber-optic cables to carry signals from the cockpit to the various points of use, a concept known as 'fly-by-light' or FBL. However, electrical circuits (PBW, or 'power-by-wire') would still be required at both ends of the cables to perform control functions, so the possibility of harmful interference would remain. Computer models for two different antennas were created in order to find the magnitude of the electric fields which would be generated in the airspace around them while in the transmit mode. The first antenna was a horizontal 'rhombic' used by the Voice of America (VOA) for long-distance short-wave broadcasting. The second antenna was a multi-element 'log-periodic dipole array' (LPDA) of a type often used for two-way radio communications. For each case, a specified amount of power was applied in the computer model, and the resulting electric field intensity was predicted at a variety of locations surrounding the antenna. This information will then be used to calculate the levels of interference which could occur inside an airplane flying in the vicinity of these radiation emitters.

  5. 75 FR 52807 - Aviation Rulemaking Advisory Committee; Transport Airplane and Engine Issues-New Task

    Science.gov (United States)

    2010-08-27

    ... airplanes. This initiative originated in response to a request by aviation industry organizations who... Federal Aviation Administration Aviation Rulemaking Advisory Committee; Transport Airplane and Engine Issues--New Task AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of new task...

  6. Headache attributed to airplane travel ('airplane headache'): clinical profile based on a large case series.

    Science.gov (United States)

    Mainardi, F; Lisotto, C; Maggioni, F; Zanchin, G

    2012-06-01

    The 'headache attributed to airplane travel', also named 'airplane headache' (AH), is a recently described headache disorder that appears exclusively in relation to airplane flights, in particular during the landing phase. Based on the stereotypical nature of the attacks in all reported cases, we proposed provisional diagnostic criteria for AH in a previously published paper. Up to now 37 cases have been described in the literature. After our paper was disseminated via the Internet, we received several email messages from subjects around the world who had experienced such a peculiar headache. Their cooperation, by completing a structured questionnaire and allowing the direct observation of three subjects, enabled us to carry out a study on a total of 75 patients suffering from AH. Our survey confirmed the stereotypical nature of the attacks, in particular with regard to the short duration of the pain (lasting less than 30 minutes in up to 95% of the cases), the clear relationship with the landing phase, the unilateral pain, the male preponderance, and the absence of accompanying signs and/or symptoms. It is conceivable to consider barotrauma as one of the main mechanisms involved in the pathophysiology of AH. The observation that the pain appears inconstantly in the majority of cases, without any evident disorder affecting the paranasal sinuses, could be consistent with a multimodal pathogenesis underlying this condition, possibly resulting in the interaction between anatomic, environmental and temporary concurrent factors. This is by far the largest AH case series ever reported in the literature. The diagnostic criteria that we previously proposed proved to be valid when applied to a large number of patients suffering from this condition. We support its recognition as a new form of headache, to be included in the forthcoming update of the International Headache Society Classification, within '10. Headache attributed to disorder of homoeostasis'. Its formal

  7. 76 FR 22828 - Airworthiness Directives; The Boeing Company Model 737-700 Series Airplanes

    Science.gov (United States)

    2011-04-25

    ... airplanes, replacing the seat track pivot link assemblies, seat track sections, and floor panels. For... and defines fatigue loading of the airplane structure. On some airplanes, the passenger seat leg shear... describes procedures for: Replacing floor panels with new floor panels between STA 500C and STA 540...

  8. 14 CFR 121.509 - Flight time limitations: Four pilot crews: airplanes.

    Science.gov (United States)

    2010-01-01

    ...: airplanes. 121.509 Section 121.509 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF... Operations § 121.509 Flight time limitations: Four pilot crews: airplanes. (a) No certificate holder conducting supplemental operations may schedule a pilot— (1) For flight deck duty in an airplane that has a...

  9. LAUNCH : an innovation concept for loading and unloading narrow-body airplanes

    NARCIS (Netherlands)

    Grinten, M.P. van der; Bronkhorst, R.E.; Delleman, N.J.

    2000-01-01

    In wide-body airplanes containers are used for handling luggage in and out the airplane. In narrow-body airplanes loading and unloading still is done manually causing heavy loads in awkward postures due to the limited height in the belly. Incidence rates of musculoskeletal health problems are high

  10. 14 CFR 135.379 - Large transport category airplanes: Turbine engine powered: Takeoff limitations.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Large transport category airplanes: Turbine... PERSONS ON BOARD SUCH AIRCRAFT Airplane Performance Operating Limitations § 135.379 Large transport category airplanes: Turbine engine powered: Takeoff limitations. (a) No person operating a turbine engine...

  11. 14 CFR 91.815 - Agricultural and fire fighting airplanes: Noise operating limitations.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Agricultural and fire fighting airplanes... RULES Operating Noise Limits § 91.815 Agricultural and fire fighting airplanes: Noise operating limitations. (a) This section applies to propeller-driven, small airplanes having standard airworthiness...

  12. 14 CFR 121.175 - Airplanes: Reciprocating engine-powered: Weight limitations.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplanes: Reciprocating engine-powered... AND OPERATIONS OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations § 121.175 Airplanes: Reciprocating engine-powered: Weight limitations. (a...

  13. 14 CFR 91.323 - Increased maximum certificated weights for certain airplanes operated in Alaska.

    Science.gov (United States)

    2010-01-01

    ... certain airplanes operated in Alaska. 91.323 Section 91.323 Aeronautics and Space FEDERAL AVIATION... certain airplanes operated in Alaska. (a) Notwithstanding any other provision of the Federal Aviation... certificated weight of an airplane type certificated under Aeronautics Bulletin No. 7-A of the U.S. Department...

  14. 14 CFR 121.201 - Nontransport category airplanes: En route limitations: One engine inoperative.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Nontransport category airplanes: En route...: CERTIFICATION AND OPERATIONS OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations § 121.201 Nontransport category airplanes: En route limitations: One engine...

  15. 14 CFR 121.327 - Supplemental oxygen: Reciprocating engine powered airplanes.

    Science.gov (United States)

    2010-01-01

    ... powered airplanes. 121.327 Section 121.327 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... Equipment Requirements § 121.327 Supplemental oxygen: Reciprocating engine powered airplanes. (a) General... airplane unless supplemental oxygen is furnished and used as set forth in paragraphs (b) and (c) of this...

  16. 14 CFR 121.641 - Fuel supply: Nonturbine and turbo-propeller-powered airplanes: Flag operations.

    Science.gov (United States)

    2010-01-01

    ...-powered airplanes: Flag operations. 121.641 Section 121.641 Aeronautics and Space FEDERAL AVIATION... Flight Release Rules § 121.641 Fuel supply: Nonturbine and turbo-propeller-powered airplanes: Flag operations. (a) No person may dispatch or take off a nonturbine or turbo-propeller-powered airplane unless...

  17. 14 CFR 135.365 - Large transport category airplanes: Reciprocating engine powered: Weight limitations.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Large transport category airplanes... PERSONS ON BOARD SUCH AIRCRAFT Airplane Performance Operating Limitations § 135.365 Large transport category airplanes: Reciprocating engine powered: Weight limitations. (a) No person may take off a...

  18. 14 CFR 121.177 - Airplanes: Reciprocating engine-powered: Takeoff limitations.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplanes: Reciprocating engine-powered... AND OPERATIONS OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations § 121.177 Airplanes: Reciprocating engine-powered: Takeoff limitations. (a...

  19. 14 CFR 121.197 - Airplanes: Turbine engine powered: Landing limitations: Alternate airports.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplanes: Turbine engine powered: Landing... AND OPERATIONS OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations § 121.197 Airplanes: Turbine engine powered: Landing limitations: Alternate...

  20. 14 CFR 36.1583 - Noncomplying agricultural and fire fighting airplanes.

    Science.gov (United States)

    2010-01-01

    ... airplanes. 36.1583 Section 36.1583 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF... Limitations and Information § 36.1583 Noncomplying agricultural and fire fighting airplanes. (a) This section applies to propeller-driven, small airplanes that— (1) Are designed for “agricultural aircraft operations...

  1. 14 CFR 121.195 - Airplanes: Turbine engine powered: Landing limitations: Destination airports.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplanes: Turbine engine powered: Landing...: CERTIFICATION AND OPERATIONS OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations § 121.195 Airplanes: Turbine engine powered: Landing limitations...

  2. 14 CFR 91.819 - Civil supersonic airplanes that do not comply with part 36.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Civil supersonic airplanes that do not... RULES Operating Noise Limits § 91.819 Civil supersonic airplanes that do not comply with part 36. (a) Applicability. This section applies to civil supersonic airplanes that have not been shown to comply with the...

  3. 14 CFR 121.189 - Airplanes: Turbine engine powered: Takeoff limitations.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplanes: Turbine engine powered: Takeoff... OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations § 121.189 Airplanes: Turbine engine powered: Takeoff limitations. (a) No person operating a...

  4. 14 CFR 121.643 - Fuel supply: Nonturbine and turbo-propeller-powered airplanes: Supplemental operations.

    Science.gov (United States)

    2010-01-01

    ...-powered airplanes: Supplemental operations. 121.643 Section 121.643 Aeronautics and Space FEDERAL AVIATION... Flight Release Rules § 121.643 Fuel supply: Nonturbine and turbo-propeller-powered airplanes... flight or takeoff a nonturbine or turbo-propeller-powered airplane unless, considering the wind and other...

  5. 14 CFR 26.39 - Newly produced airplanes: Fuel tank flammability.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Newly produced airplanes: Fuel tank... TRANSPORTATION AIRCRAFT CONTINUED AIRWORTHINESS AND SAFETY IMPROVEMENTS FOR TRANSPORT CATEGORY AIRPLANES Fuel Tank Flammability § 26.39 Newly produced airplanes: Fuel tank flammability. (a) Applicability: This...

  6. 14 CFR 135.391 - Large nontransport category airplanes: En route limitations: One engine inoperative.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Large nontransport category airplanes: En... AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Airplane Performance Operating Limitations § 135.391 Large nontransport category airplanes: En route limitations: One engine inoperative. (a) Except as...

  7. 14 CFR 135.367 - Large transport category airplanes: Reciprocating engine powered: Takeoff limitations.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Large transport category airplanes... AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Airplane Performance Operating Limitations § 135.367 Large transport category airplanes: Reciprocating engine powered: Takeoff limitations. (a) No...

  8. 14 CFR 121.505 - Flight time limitations: Two pilot crews: airplanes.

    Science.gov (United States)

    2010-01-01

    ...: airplanes. 121.505 Section 121.505 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF... Operations § 121.505 Flight time limitations: Two pilot crews: airplanes. (a) If a certificate holder... relieve that pilot of all duty with it during that rest period. (b) No pilot of an airplane that has a...

  9. 14 CFR 121.329 - Supplemental oxygen for sustenance: Turbine engine powered airplanes.

    Science.gov (United States)

    2010-01-01

    ... engine powered airplanes. 121.329 Section 121.329 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... Equipment Requirements § 121.329 Supplemental oxygen for sustenance: Turbine engine powered airplanes. (a) General. When operating a turbine engine powered airplane, each certificate holder shall equip the...

  10. 14 CFR 91.607 - Emergency exits for airplanes carrying passengers for hire.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Emergency exits for airplanes carrying... Emergency exits for airplanes carrying passengers for hire. (a) Notwithstanding any other provision of this chapter, no person may operate a large airplane (type certificated under the Civil Air Regulations...

  11. 14 CFR 121.191 - Airplanes: Turbine engine powered: En route limitations: One engine inoperative.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplanes: Turbine engine powered: En route...: CERTIFICATION AND OPERATIONS OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations § 121.191 Airplanes: Turbine engine powered: En route limitations: One...

  12. 14 CFR 21.7 - Continued airworthiness and safety improvements for transport category airplanes.

    Science.gov (United States)

    2010-01-01

    ... improvements for transport category airplanes. 21.7 Section 21.7 Aeronautics and Space FEDERAL AVIATION... § 21.7 Continued airworthiness and safety improvements for transport category airplanes. (a) On or... subchapter. (b) For new transport category airplanes manufactured under the authority of the FAA, the holder...

  13. 14 CFR 121.198 - Cargo service airplanes: Increased zero fuel and landing weights.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Cargo service airplanes: Increased zero... AND OPERATIONS OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations § 121.198 Cargo service airplanes: Increased zero fuel and landing weights...

  14. 14 CFR 125.377 - Fuel supply: Turbine-engine-powered airplanes other than turbopropeller.

    Science.gov (United States)

    2010-01-01

    ... airplanes other than turbopropeller. 125.377 Section 125.377 Aeronautics and Space FEDERAL AVIATION...: CERTIFICATION AND OPERATIONS CERTIFICATION AND OPERATIONS: AIRPLANES HAVING A SEATING CAPACITY OF 20 OR MORE... AIRCRAFT Flight Release Rules § 125.377 Fuel supply: Turbine-engine-powered airplanes other than...

  15. 14 CFR 121.179 - Airplanes: Reciprocating engine-powered: En route limitations: All engines operating.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplanes: Reciprocating engine-powered: En...: CERTIFICATION AND OPERATIONS OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations § 121.179 Airplanes: Reciprocating engine-powered: En route limitations: All...

  16. 14 CFR 121.507 - Flight time limitations: Three pilot crews: airplanes.

    Science.gov (United States)

    2010-01-01

    ...: airplanes. 121.507 Section 121.507 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF... Operations § 121.507 Flight time limitations: Three pilot crews: airplanes. (a) No certificate holder conducting supplemental operations may schedule a pilot— (1) For flight deck duty in an airplane that has a...

  17. 14 CFR 121.344a - Digital flight data recorders for 10-19 seat airplanes.

    Science.gov (United States)

    2010-01-01

    ... seat airplanes. 121.344a Section 121.344a Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... Equipment Requirements § 121.344a Digital flight data recorders for 10-19 seat airplanes. (a) Except as... airplane having a passenger seating configuration, excluding any required crewmember seat, of 10 to 19...

  18. 14 CFR 125.375 - Fuel supply: Nonturbine and turbopropeller-powered airplanes.

    Science.gov (United States)

    2010-01-01

    ...-powered airplanes. 125.375 Section 125.375 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... AND OPERATIONS CERTIFICATION AND OPERATIONS: AIRPLANES HAVING A SEATING CAPACITY OF 20 OR MORE... AIRCRAFT Flight Release Rules § 125.375 Fuel supply: Nonturbine and turbopropeller-powered airplanes. (a...

  19. 76 FR 65991 - Airworthiness Directives; The Boeing Company Model 757 Airplanes

    Science.gov (United States)

    2011-10-25

    ... the Boeing 757 Airplane Maintenance Manual (AMM), Revision 101, dated May 20, 2011, which describes...,'' of the Boeing 757 Airplane Maintenance Manual (AMM), Revision 101, dated May 20, 2011; except as... Boeing 757 Airplane Maintenance Manual (AMM), Revision 101, dated May 20, 2011. Credit for Hard-Time...

  20. GRAPHIC-ANALYTICAL METHODS FOR CALCULATING THE GRAVITY CENTER OF A MODEL AIRPLANE

    Directory of Open Access Journals (Sweden)

    DIACONESCU Olivian

    2012-11-01

    Full Text Available This paper presents a stage of the realization of an airplane capable to work with low capacity motors between 2.5 cmc and 4 cmc, as it presents the gravity center calculation. Firstly for an airplane to fly properly we must calculate the gravity center, the top speed which is necessary for picking the servomotors that equip the airplane.

  1. 78 FR 77380 - Airworthiness Directives; Dornier Luftfahrt GmbH Airplanes

    Science.gov (United States)

    2013-12-23

    ... 20, 2011; and RUAG Aerospace Services GmbH Dornier 228 Airplane Maintenance Manual, TM-AMM-228-00014... RUAG Aerospace Services GmbH Dornier 228 Airplane Maintenance Manual, TM-AMM-228- 00014-080184... Systems in RUAG Aerospace Services GmbH Dornier 228 Airplane Maintenance Manual, TM-AMM-228- 00014-080184...

  2. 14 CFR 125.175 - Protection of other airplane components against fire.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Protection of other airplane components... CERTIFICATION AND OPERATIONS: AIRPLANES HAVING A SEATING CAPACITY OF 20 OR MORE PASSENGERS OR A MAXIMUM PAYLOAD... Requirements § 125.175 Protection of other airplane components against fire. (a) Except as provided in...

  3. 14 CFR 121.411 - Qualifications: Check airmen (airplane) and check airmen (simulator).

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Qualifications: Check airmen (airplane) and... § 121.411 Qualifications: Check airmen (airplane) and check airmen (simulator). (a) For the purposes of this section and § 121.413: (1) A check airman (airplane) is a person who is qualified, and permitted...

  4. 14 CFR 121.412 - Qualifications: Flight instructors (airplane) and flight instructors (simulator).

    Science.gov (United States)

    2010-01-01

    ... (airplane) and flight instructors (simulator). 121.412 Section 121.412 Aeronautics and Space FEDERAL... OPERATIONS Training Program § 121.412 Qualifications: Flight instructors (airplane) and flight instructors (simulator). (a) For the purposes of this section and § 121.414: (1) A flight instructor (airplane) is a...

  5. 14 CFR 121.409 - Training courses using airplane simulators and other training devices.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Training courses using airplane simulators... Program § 121.409 Training courses using airplane simulators and other training devices. (a) Training courses utilizing airplane simulators and other training devices may be included in the certificate holder...

  6. 14 CFR 135.397 - Small transport category airplane performance operating limitations.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Small transport category airplane... PERSONS ON BOARD SUCH AIRCRAFT Airplane Performance Operating Limitations § 135.397 Small transport category airplane performance operating limitations. (a) No person may operate a reciprocating engine...

  7. 14 CFR 121.277 - Protection of other airplane components against fire.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Protection of other airplane components....277 Protection of other airplane components against fire. (a) Except as provided in paragraph (b) of this section, all airplane surfaces aft of the nacelles in the area of one nacelle diameter on both...

  8. 14 CFR 121.407 - Training program: Approval of airplane simulators and other training devices.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Training program: Approval of airplane... Program § 121.407 Training program: Approval of airplane simulators and other training devices. (a) Each airplane simulator and other training device that is used in a training course permitted under § 121.409...

  9. 14 CFR 135.399 - Small nontransport category airplane performance operating limitations.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Small nontransport category airplane... PERSONS ON BOARD SUCH AIRCRAFT Airplane Performance Operating Limitations § 135.399 Small nontransport category airplane performance operating limitations. (a) No person may operate a reciprocating engine or...

  10. 14 CFR 121.193 - Airplanes: Turbine engine powered: En route limitations: Two engines inoperative.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplanes: Turbine engine powered: En route... Performance Operating Limitations § 121.193 Airplanes: Turbine engine powered: En route limitations: Two...). No person may operate a turbine engine powered airplane along an intended route unless he complies...

  11. 75 FR 51931 - Airworthiness Directives; Dassault-Aviation Model FALCON 7X Airplanes

    Science.gov (United States)

    2010-08-24

    ... Model FALCON 7X Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation... AD applies to Dassault-Aviation Model FALCON 7X airplanes, certificated in any category, all serial... airplane. Compliance (f) You are responsible for having the actions required by this AD performed within...

  12. 75 FR 79952 - Airworthiness Directives; DASSAULT AVIATION Model Falcon 10 Airplanes; Model FAN JET FALCON, FAN...

    Science.gov (United States)

    2010-12-21

    ... Model Falcon 10 Airplanes; Model FAN JET FALCON, FAN JET FALCON SERIES C, D, E, F, and G Airplanes...) DASSAULT AVIATION Model Falcon 10 airplanes, Model FAN JET FALCON, FAN JET FALCON SERIES C, D, E, F, and G..., FAN JET FALCON SERIES 21-31-10, dated October 2008..... Dassault Fan Jet Falcon C, D, E, F, and G...

  13. 76 FR 480 - Airworthiness Directives; Dassault-Aviation Model FALCON 7X Airplanes

    Science.gov (United States)

    2011-01-05

    ... Model FALCON 7X Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed... FALCON 7X airplanes, certificated in any category, all serial numbers. Subject (d) Air Transport... the airplane. Compliance (f) You are responsible for having the actions required by this AD performed...

  14. 76 FR 25535 - Airworthiness Directives; Dassault-Aviation Model FALCON 7X Airplanes

    Science.gov (United States)

    2011-05-05

    ... Model FALCON 7X Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation... Dassault-Aviation Model FALCON 7X airplanes, certificated in any category, all serial numbers. Subject (d... control of the airplane. Compliance (f) You are responsible for having the actions required by this AD...

  15. Solar Airplanes and Regenerative Fuel Cells

    Science.gov (United States)

    Bents, David J.

    2007-01-01

    A solar electric aircraft with the potential to "fly forever" has captured NASA's interest, and the concept for such an aircraft was pursued under Aeronautics Environmental Research Aircraft and Sensor Technology (ERAST) project. Feasibility of this aircraft happens to depend on the successful development of solar power technologies critical to NASA's Exploration Initiatives; hence, there was widespread interest throughout NASA to bring these technologies to a flight demonstration. The most critical is an energy storage system to sustain mission power during night periods. For the solar airplane, whose flight capability is already limited by the diffuse nature of solar flux and subject to latitude and time of year constraints, the feasibility of long endurance flight depends on a storage density figure of merit better than 400-600 watt-hr per kilogram. This figure of merit is beyond the capability of present day storage technologies (other than nuclear) but may be achievable in the hydrogen-oxygen regenerative fuel cell (RFC). This potential has led NASA to undertake the practical development of a hydrogen-oxygen regenerative fuel cell, initially as solar energy storage for a high altitude UAV science platform but eventually to serve as the primary power source for NASAs lunar base and other planet surface installations. Potentially the highest storage capacity and lowest weight of any non-nuclear device, a flight-weight RFC aboard a solar-electric aircraft that is flown continuously through several successive day-night cycles will provide the most convincing demonstration that this technology's widespread potential has been realized. In 1998 NASA began development of a closed cycle hydrogen oxygen PEM RFC under the Aeronautics Environmental Research Aircraft and Sensor Technology (ERAST) project and continued its development, originally for a solar electric airplane flight, through FY2005 under the Low Emissions Alternative Power (LEAP) project. Construction of

  16. Planetary Airplane Extraction System Development and Subscale Testing

    Science.gov (United States)

    Teter, John E., Jr.

    2006-01-01

    The Aerial Regional-scale Environmental Survey (ARES) project will employ an airplane as the science platform from which to collect science data in the previously inaccessible, thin atmosphere of Mars. In order for the airplane to arrive safely in the Martian atmosphere, a number of sequences must occur. A critical element in the entry sequence at Mars is an extraction maneuver to separate the airplane quickly (in less than a second) from its protective backshell to reduce the possibility of re-contact, potentially leading to mission failure. This paper describes the development, testing, and lessons learned from building a 1/3 scale model of this airplane extraction system. This design, based on the successful Mars Exploration Rover (MER) extraction mechanism, employs a series of trucks rolling along tracks located on the surface of the central parachute can. Numerous tests using high speed video were conducted at the Langley Research Center to validate this concept. One area of concern was that that although the airplane released cleanly, a pitching moment could be introduced. While targeted for a Mars mission, this concept will enable environmental surveys by aircraft in other planetary bodies with a sensible atmosphere such as Venus or Saturn's moon, Titan.

  17. Solar Airplane Concept Developed for Venus Exploration

    Science.gov (United States)

    Landis, Geoffrey A.

    2004-01-01

    An airplane is the ideal vehicle for gathering atmospheric data over a wide range of locations and altitudes, while having the freedom to maneuver to regions of scientific interest. Solar energy is available in abundance on Venus. Venus has an exoatmospheric solar flux of 2600 W/m2, compared with Earth's 1370 W/m2. The solar intensity is 20 to 50 percent of the exoatmospheric intensity at the bottom of the cloud layer, and it increases to nearly 95 percent of the exoatmospheric intensity at 65 km. At these altitudes, the temperature of the atmosphere is moderate, in the range of 0 to 100 degrees Celsius, depending on the altitude. A Venus exploration aircraft, sized to fit in a small aeroshell for a "Discovery" class scientific mission, has been designed and analyzed at the NASA Glenn Research Center. For an exploratory aircraft to remain continually illuminated by sunlight, it would have to be capable of sustained flight at or above the wind speed, about 95 m/sec at the cloud-top level. The analysis concluded that, at typical flight altitudes above the cloud layer (65 to 75 km above the surface), a small aircraft powered by solar energy could fly continuously in the atmosphere of Venus. At this altitude, the atmospheric pressure is similar to pressure at terrestrial flight altitudes.

  18. A new type of headache, headache associated with airplane travel: preliminary diagnostic criteria and possible mechanisms of aetiopathogenesis.

    Science.gov (United States)

    Berilgen, M Said; Müngen, Bulent

    2011-09-01

    In recent years, there has been an increase in the reports indicating a form of headache that occurs during commercial aircraft travel. This headache, called airplane headache by some authors, is believed to be a new type of headache. The headache has very specific characteristics and all of the cases exhibited very stereotypical symptoms. The headache starts suddenly during the ascent and/or descent of the commercial aircraft. It has a mean duration of 20 minutes, which is usually unilateral and commonly localized to periorbital region. The headache is described to be severe, and has a stabbing or jabbing nature, and generally subsides in a short time. In some cases, an organic cause can be identified whereas in others no organic pathology could be found. We described the clinical features of 22 cases who suffered from a headache that occurred during airplane travel. We examined other cases with similar features reported in the literature and proposed preliminary diagnostic criteria for this new form of headache. We also discussed the possible patholophysiological mechanisms that may cause this headache.

  19. Commercial Buildings Characteristics, 1992

    Energy Technology Data Exchange (ETDEWEB)

    1994-04-29

    Commercial Buildings Characteristics 1992 presents statistics about the number, type, and size of commercial buildings in the United States as well as their energy-related characteristics. These data are collected in the Commercial Buildings Energy Consumption Survey (CBECS), a national survey of buildings in the commercial sector. The 1992 CBECS is the fifth in a series conducted since 1979 by the Energy Information Administration. Approximately 6,600 commercial buildings were surveyed, representing the characteristics and energy consumption of 4.8 million commercial buildings and 67.9 billion square feet of commercial floorspace nationwide. Overall, the amount of commercial floorspace in the United States increased an average of 2.4 percent annually between 1989 and 1992, while the number of commercial buildings increased an average of 2.0 percent annually.

  20. Estimation of moments of inertia of airplanes from design data

    Science.gov (United States)

    Kirschbaum, H W

    1936-01-01

    A method of determining the moments of inertia of an airplane from design data pertaining to the weights and locations of the component parts is described. The computations required to ascertain the center-of-gravity position are incorporated with the calculations of moments of inertia. A complete set of data and calculations for a modern airplane is given to illustrate the procedure. From a comparison between calculated values and measured values it is believed that the moments of inertia can be estimated within 10 percent by the use of this method.

  1. Advances in Thrust-Based Emergency Control of an Airplane

    Science.gov (United States)

    Creech, Gray; Burken, John J.; Burcham, Bill

    2003-01-01

    Engineers at NASA's Dryden Flight Research Center have received a patent on an emergency flight-control method implemented by a propulsion-controlled aircraft (PCA) system. Utilizing the preexisting auto-throttle and engine-pressure-ratio trim controls of the airplane, the PCA system provides pitch and roll control for landing an airplane safely without using aerodynamic control surfaces that have ceased to function because of a primary-flight-control-system failure. The installation of the PCA does not entail any changes in pre-existing engine hardware or software. [Aspects of the method and system at previous stages of development were reported in Thrust-Control System for Emergency Control of an Airplane (DRC-96-07), NASA Tech Briefs, Vol. 25, No. 3 (March 2001), page 68 and Emergency Landing Using Thrust Control and Shift of Weight (DRC-96-55), NASA Tech Briefs, Vol. 26, No. 5 (May 2002), page 58.]. Aircraft flight-control systems are designed with extensive redundancy to ensure low probabilities of failure. During recent years, however, several airplanes have exhibited major flight-control-system failures, leaving engine thrust as the last mode of flight control. In some of these emergency situations, engine thrusts were successfully modulated by the pilots to maintain flight paths or pitch angles, but in other situations, lateral control was also needed. In the majority of such control-system failures, crashes resulted and over 1,200 people died. The challenge lay in creating a means of sufficient degree of thrust-modulation control to safely fly and land a stricken airplane. A thrust-modulation control system designed for this purpose was flight-tested in a PCA an MD-11 airplane. The results of the flight test showed that without any operational control surfaces, a pilot can land a crippled airplane (U.S. Patent 5,330,131). The installation of the original PCA system entailed modifications not only of the flight-control computer (FCC) of the airplane but

  2. Estimation of transport airplane aerodynamics using multiple stepwise regression

    Science.gov (United States)

    Keskar, D. A.; Klein, V.; Batterson, J. G.

    1985-01-01

    This paper presents an application of multiple stepwise regression to the flight test data of a typical transport airplane. The flight test data was carefully preprocessed to eliminate aliasing, time skews and high frequency noise. The data consisted both of basic certification maneuvers, such as wind-up-turns and maneuvers suitable for parameter estimation, such as responses to elevator pulses and doublets. It is shown that the results of multiple stepwise regression techniques compare favorably with the results obtained from maximum likelihood estimation. Finally, it is concluded that multiple stepwise regression could be a fast economical way to estimate transport airplane aerodynamics.

  3. Airplane-Acceleration Display For Low-Gravity Research

    Science.gov (United States)

    Millis, Marc G.

    1989-01-01

    Bar-graph display facilitates precise control of trajectories. Overall display system includes accelerometer block, power-supply-and-interface box, thrust-axis display, and pitch-and-lateral-axes display. Accelerometer block includes three servoaccelerometers orthogonally mounted on adjustable triaxial base allowing fine alignment of accelerometers with respect to airplane. Accelerometer block and power-supply-and-interface box located near center of gravity of airplane in lugguage area. LED bar-graph displays take up less panel space and easier to align with axes represented. No moving parts and not subject to parallax. With help of display, pilot adheres to predetermined fraction of g, with minimal lateral acceleration.

  4. 76 FR 28914 - Airworthiness Directives; Airbus Model A300 B4-600, B4-600R, and F4-600R Series Airplanes, and...

    Science.gov (United States)

    2011-05-19

    ... Model A300 B4-600, B4-600R, and F4-600R Series Airplanes, and Model C4-605R Variant F Airplanes (Collectively Called A300-600 Series Airplanes); and Model A310 Series Airplanes AGENCY: Federal Aviation... CONTACT: Dan Rodina, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate...

  5. On commercial media bias

    OpenAIRE

    Germano, Fabrizio

    2008-01-01

    Within the spokes model of Chen and Riordan (2007) that allows for non-localized competition among arbitrary numbers of media outlets, we quantify the effect of concentration of ownership on quality and bias of media content. A main result shows that too few commercial outlets, or better, too few separate owners of commercial outlets can lead to substantial bias in equilibrium. Increasing the number of outlets (commercial and non-commercial) tends to bring down this bias; but the strongest ef...

  6. 76 FR 78574 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2011-12-19

    ... appeared to run through the entire thickness of the forward edge of the fitting at the radius corner of the... long and started from the radius of the fitting flange. The airplane had accumulated 16,655 total... Repetitive HFEC inspection...... 3 work-hours x $85 per $0 $255 per inspection $106,335 per hour = $255 per...

  7. 78 FR 60804 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-10-02

    ... from the lower radius of the cutout on airplanes that had accumulated between 35,597 and 68,133 total flight cycles. Boeing also received one report of a crack propagating outboard from the upper radius... Parts cost Cost per product operators Inspections [retained from AD 2 work-hours x $85 None $170 per $71...

  8. 78 FR 15658 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-03-12

    ... certain airplanes, repetitive inspections for cracking of the rear spar upper chord radius; for certain... cost Parts cost Cost per product operators Inspection 67 work-hours x $85 $0 $5,695 per $558,110 per... radius. (4) Do a detailed or HFEC inspection for cracking in the upper skin around the forward fastener...

  9. Aerobasics–An Introduction to Aeronautics-Airplane Propulsion

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 14; Issue 7. Aerobasics – An Introduction to Aeronautics - Airplane Propulsion. S P Govinda Raju. Series Article Volume 14 Issue 7 July 2009 pp 650-666. Fulltext. Click here to view fulltext PDF. Permanent link:

  10. 78 FR 78292 - Airworthiness Directives; Dassault Aviation Airplanes

    Science.gov (United States)

    2013-12-26

    ... being unaware of possible system failures that require immediate action by the flightcrew, leading to... INFORMATION CONTACT: Tom Rodriguez, Aerospace Engineer, International Branch, ANM-116, Transport Airplane... AD This product has been approved by the aviation authority of another country, and is approved for...

  11. Airline Transport Pilot-Airplane (Air Carrier) Written Test Guide.

    Science.gov (United States)

    Federal Aviation Administration (DOT), Washington, DC. Flight Standards Service.

    Presented is information useful to applicants who are preparing for the Airline Transport Pilot-Airplane (Air Carrier) Written Test. The guide describes the basic aeronautical knowledge and associated requirements for certification, as well as information on source material, instructions for taking the official test, and questions that are…

  12. 78 FR 47233 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-08-05

    ...). This proposed AD was prompted by reports of cracks found during inspections of the in-flight... inspections of the radome assembly of various Model 737 series airplanes that had in-flight entertainment... controls on the radome manufacturing drawings can result in the introduction of preload stress on the...

  13. 78 FR 45054 - Airworthiness Directives; the Boeing Company Airplanes

    Science.gov (United States)

    2013-07-26

    ... INFORMATION CONTACT: Kenneth Fairhurst, Senior Aerospace Engineer, Systems and Equipment Branch, ANM-130S, FAA..., which have been delivered with Honeywell fixed ELTs having part number 1152682-2. Future production...) Applicability This AD applies to The Boeing Company Model 787-8 airplanes, certificated in any category, line...

  14. 77 FR 61542 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-10-10

    ... INFORMATION CONTACT: Nancy Marsh, Aerospace Engineer, Airframe Branch, ANM-120S, FAA, Seattle Aircraft...-100, -200, and -200C series airplanes with line numbers (L/N) 1 through 869 inclusive, and those..., 1990, or production equivalent: Within 6 months after April 22, 2002 (the effective date of AD 2002-05...

  15. 78 FR 23468 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-04-19

    ... INFORMATION CONTACT: Melanie Violette, Aerospace Engineer, Airframe Branch, ANM-120S, FAA, Seattle Aircraft... amended the elevator part number, effective with airplane line number 718, which had the modified fitting installed in production. The IPC currently shows that the new elevator (P/N 183W0061-17/18) may not be...

  16. 78 FR 6254 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-01-30

    ... hours or 24 months, whichever occurs first. Continental Airlines (CAL), British Airways (BA), KLM Royal.... KLM stated that if an airplane does not pass the operational test, a tank entry is required, which has an impact on the downtime requirements for C- checks. KLM asked that the initial compliance time be...

  17. 77 FR 26158 - Airworthiness Directives; Saab AB, Saab Aerosystems Airplanes

    Science.gov (United States)

    2012-05-03

    ..., Transport Airplane Directorate, Aircraft Certification Service. BILLING CODE 4910-13-P ... qualification issue during the change of the base material, for the end parts of the accumulator back in 1993... requirements.'' Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in...

  18. 77 FR 11416 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-02-27

    ... Airplanes, Attention: Data & Services Management, P.O. Box 3707, MC 2H-65, Seattle, Washington 98124-2207... http://www.regulations.gov ; or in person at the Docket Management Facility between 9 a.m. and 5 p.m... under warranty, thereby reducing the cost impact on affected individuals. We do not control warranty...

  19. 78 FR 49237 - Airworthiness Directives; the Boeing Company Airplanes

    Science.gov (United States)

    2013-08-13

    ... Airplanes, Attention: Data & Services Management, P. O. Box 3707, MC 2H-65, Seattle, WA 98124-2207....gov ; or in person at the Docket Management Facility between 9 a.m. and 5 p.m., Monday through Friday... to the manufacturer, some of the costs of this proposed AD may be covered under warranty, thereby...

  20. 78 FR 32349 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Science.gov (United States)

    2013-05-30

    ...: 316-946-4165; fax: 316-946-4107; email: wichita-cos@faa.gov . SUPPLEMENTARY INFORMATION: Discussion We... installed. A review of airplane maintenance records is acceptable in lieu of this inspection if the part... Compressor Hour Meter and Maintenance Records If, during the inspection required by paragraph (g) of this AD...

  1. 77 FR 65617 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Science.gov (United States)

    2012-10-30

    ... cap of hydraulic accumulators on other airplane models, resulting in high-energy impact damage to... the associated hydraulic system and high-energy impact damage to adjacent systems and structure. To... by cases of on-ground hydraulic accumulator/screw cap/end cap failure, resulting in high-energy...

  2. 77 FR 16193 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Science.gov (United States)

    2012-03-20

    ... loss of the associated hydraulic system and high-energy impact damage to adjacent systems and structure... that resulted in loss of use of that hydraulic system and in high-energy impact damage to adjacent... (Regional Jet Series 900) airplanes. This proposed AD was prompted by reports of failures of a hydraulic...

  3. 77 FR 45981 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Science.gov (United States)

    2012-08-02

    ... failure of the screw cap or end cap of hydraulic accumulators on other airplane models, resulting in high-energy impact damage to adjacent systems and structure. This proposed AD would require inspecting for a part number and replacing the affected parking brake hydraulic accumulator, and relocating the parking...

  4. 77 FR 23420 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Science.gov (United States)

    2012-04-19

    ..., which could result in the loss of the associated hydraulic system and high-energy impact damage to... requires revising certain sections of a certain airplane flight manual, deactivating certain hydraulic accumulators, removing certain hydraulic accumulators, ultrasonic inspections for cracks on accumulators and...

  5. 78 FR 18257 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Science.gov (United States)

    2013-03-26

    ... loss of the associated hydraulic system and high-energy impact damage to adjacent systems and structure... necessary to protect the hydraulic system and airplane structure from possible damage by any faulty screw... brake accumulator screw cap or end cap resulting in loss of the number 2 hydraulic system and damage to...

  6. 78 FR 25898 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-05-03

    ... structural repair manual (SRM) repair specified in Part 1 of the Accomplishment Instructions of Boeing... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; The Boeing Company... Boeing Company Model 747 series airplanes. The existing AD currently requires inspection of the fuselage...

  7. 77 FR 21429 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-04-10

    ..., the Boeing 777 Airplane Maintenance Manual, or the Boeing 777 Structural Repair Manual--instead of the... comment was a copy of a page from the Boeing 777F Structural Repair Manual, which identified primary...-208-AD; Amendment 39-17012; AD 2012-07-06] RIN 2120-AA64 Airworthiness Directives; The Boeing Company...

  8. 78 FR 46532 - Airworthiness Directives; the Boeing Company Airplanes

    Science.gov (United States)

    2013-08-01

    ... Maintenance Document References JAL, ANZ, and Boeing asked that we remove the airplane maintenance manual (AMM... Boeing 767 Aircraft Maintenance Manual (AMM). We agree to provide clarification. The pressure leak check... this regard. Request To Include Warning Information CAL suggested that the Boeing service manuals...

  9. 77 FR 52212 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-08-29

    ... airplane fuselage skin shown in the Boeing structural repair manual (SRM) have intervals as long as 3,000..., as specified in Chapter 51 of the Boeing 757 Structural Repair Manual. (5) Where Boeing Special... Boeing 757 Structural Repair Manual. (6) If it is necessary to remove more parts for access, those parts...

  10. 76 FR 77371 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2011-12-13

    ...-063-AD; Amendment 39-16887; AD 2011-25-11] RIN 2120-AA64 Airworthiness Directives; The Boeing Company... superseding an existing airworthiness directive (AD) for all The Boeing Company 757-200, 757-200PF, 757-200CB... Limitations section of the airplane flight manual (AFM) to advise the flightcrew of procedures to follow to...

  11. 77 FR 41931 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-07-17

    ... manual (WDM) also needs to be revised, because Figures 2 and 7 of Boeing Special Attention Service... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; The Boeing Company... directive (AD) for certain The Boeing Company Model 737-600, -700, -700C, -800, and -900 series airplanes...

  12. 77 FR 54798 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-09-06

    ... Aircraft Maintenance Manual (AMM) UPS also stated that Figures 18 and 23 of Boeing Special Attention... 2011-NM-007-AD; Amendment 39-17175; AD 2012-17-12] RIN 2120-AA64 Airworthiness Directives; The Boeing... adopting a new airworthiness directive (AD) for certain The Boeing Company Model 747-400 series airplanes...

  13. 76 FR 81879 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2011-12-29

    ... Directives; The Boeing Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION... earlier proposed airworthiness directive (AD) for all The Boeing Company Model 747-100, 747-100B, 747-100B... manual repairs of the upper main sill outer chord of the left and right side main entry door number 1, as...

  14. 76 FR 77376 - Airworthiness Directives; BAE Systems (Operations) Limited Airplanes

    Science.gov (United States)

    2011-12-13

    ... Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton... requirements.'' Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds...

  15. 78 FR 18922 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-03-28

    ... airplanes. This proposed AD was prompted by a report that a cam latch on the main cargo door (MCD) broke during flight. This proposed AD would require performing repetitive inspections of the MCD cam latches... corrective actions, if necessary; and MCD rigging. We are proposing this AD to detect and correct cracked or...

  16. 77 FR 64442 - Airworthiness Directives; PILATUS AIRCRAFT LTD. Airplanes

    Science.gov (United States)

    2012-10-22

    ...) is part of Chapter 4 of the Airplane Maintenance Manual (AMM) report 02049, issue 25, dated January... (for Model PC-12/47E) is part of Chapter 4 of the AMM report 02300, issue 8, dated January 25, 2012. (g...

  17. 77 FR 60323 - Airworthiness Directives; DASSUALT AVIATION Airplanes

    Science.gov (United States)

    2012-10-03

    ... revision to the airplane maintenance manual (AMM) that introduces new or more restrictive maintenance... re-Falcon 50 Aircraft Maintenance Manual (AMM) chapter 5-40 and approved by the European Aviation... implementation of the airworthiness limitations, as specified in Dassault Aviation MF50 AMM chapter 5-40 at...

  18. 78 FR 39571 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-07-02

    ... identifications, and the second error is an airplane maintenance manual (AMM) procedure referred to in the Work Instructions that is not identified in UAL's AMM. UAL stated that issuing an IN would prevent alternative... by Boeing. Therefore, UAL should contact Boeing for resolution of the missing procedure in its AMM...

  19. 78 FR 41882 - Airworthiness Directives; Dassault Aviation Airplanes

    Science.gov (United States)

    2013-07-12

    ... manufacturer revised the airplane maintenance manual (AMM) maintenance requirements and airworthiness... Aviation Falcon 2000 (F2000) Aircraft Maintenance Manual (AMM) chapter 5-40 and are approved by the... F2000 AMM chapter 5-40 at revision 12. Since that AD was issued, Dassault Aviation have issued F2000 AMM...

  20. 78 FR 17865 - Airworthiness Directives; PILATUS AIRCRAFT LTD. Airplanes

    Science.gov (United States)

    2013-03-25

    ... PC-12 Airplane Maintenance Manual (AMM) 12-A/AMP-04, chapter 4, revision 10, dated October 26, 2007... Pilatus PC-12 AMM. The limitations were revised to include an inspection of the wing main spar fastener...-11 requires incorporating an earlier version of the airworthiness limitations section of the AMM, it...

  1. The Paper Airplane Challenge: A Market Economy Simulation. Lesson Plan.

    Science.gov (United States)

    Owens, Kimberly

    This lesson plan features a classroom simulation that helps students understand the characteristics of a market economic system. The lesson plan states a purpose; cites student objectives; suggests a time duration; lists materials needed; and details a step-by-step teaching procedure. The "Paper Airplane Challenge" handout is attached. (BT)

  2. Diagnosis and management of headache attributed to airplane travel.

    Science.gov (United States)

    Mainardi, Federico; Maggioni, Ferdinando; Lisotto, Carlo; Zanchin, Giorgio

    2013-03-01

    The headache attributed to airplane travel, also named "airplane headache", is characterized by the sudden onset of a severe head pain exclusively in relation to airplane flights, mainly during the landing phase. Secondary causes, such as upper respiratory tract infections or acute sinusitis, must be ruled out. Although its cause is not thoroughly understood, sinus barotrauma should be reasonably involved in the pathophysiological mechanisms. Furthermore, in the current International Classification of Headache Disorders, rapid descent from high altitude is not considered as a possible cause of headache, although the onset of such pain in airplane travellers or aviators has been well known since the beginning of the aviation era. On the basis of a survey we conducted with the courteous cooperation of people who had experienced this type of headache, we proposed diagnostic criteria to be added to the forthcoming revision of the International Classification of Headache Disorders. Their formal validation would favour further studies aimed at improving knowledge of the pathophysiological mechanisms involved and at implementing preventative measures.

  3. 77 FR 12158 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Science.gov (United States)

    2012-02-29

    ... Jet Series 700, 701, & 702), CL-600-2D15 (Regional Jet Series 705), and CL-600- 2D24 (Regional Jet Series 900) airplanes. That AD currently requires repetitive detailed inspections for cracking or... INFORMATION CONTACT: Aziz Ahmed, Aerospace Engineer, Airframe and Mechanical Systems Branch, ANE-171, FAA, New...

  4. 78 FR 55662 - Airworthiness Directives; the Boeing Company Airplanes

    Science.gov (United States)

    2013-09-11

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; the Boeing Company...). SUMMARY: We propose to adopt a new airworthiness directive (AD) for certain the Boeing Company Model DC-9... Company Model DC-9 series airplanes, AD 85-01-02 R1, Amendment 39-5241 (51 FR 6101, dated February 20...

  5. 78 FR 40060 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-07-03

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; The Boeing Company... Boeing Company Model 777-200 and -300 series airplanes equipped with Rolls-Royce engines. The existing AD... 2006-26-06, Amendment 39-14864 (71 FR 77586, December 27, 2006), for certain The Boeing Company Model...

  6. 78 FR 73744 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-12-09

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; The Boeing Company... proposed rulemaking (SNPRM) for all The Boeing Company Model 737-600, -700, - 700C, -800, -900 and -900ER... Company Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes. The SNPRM published in the...

  7. 77 FR 6520 - Airworthiness Directives; BAE SYSTEMS (OPERATIONS) LIMITED Airplanes

    Science.gov (United States)

    2012-02-08

    ... wrong compartment and consequent damage to the airplane. DATES: We must receive comments on this... information identified in this proposed AD, contact BAE SYSTEMS (OPERATIONS) LIMITED, Customer Information.../Businesses/RegionalAircraft/index.htm . You may review copies of the referenced service information at the...

  8. 78 FR 42415 - Airworthiness Directives; the Boeing Company Airplanes

    Science.gov (United States)

    2013-07-16

    ... superseding airworthiness directive (AD) 87-02-07, which applied to all The Boeing Company Model 737-100 and... of stencils and index markers of impact- resistant access doors, doing corrective actions if necessary, revising the maintenance program, and adding airplanes to the applicability. This AD was prompted...

  9. 78 FR 21074 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Science.gov (United States)

    2013-04-09

    ... Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes. The existing AD currently... the maintenance requirements manual (MRM) by incorporating procedures for repetitive functional tests... of the pilot input lever of the PFS unit, and corrective actions if necessary; and, after initiating...

  10. 78 FR 79329 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Science.gov (United States)

    2013-12-30

    ... the parts, if necessary; and record in all required airplane technical records and manuals the new... personal information you provide. We will also post a report summarizing each substantive verbal contact we...), Transport Canada Civil Aviation (TCCA), which is the airworthiness authority for Canada, has issued Canadian...

  11. 78 FR 65198 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Science.gov (United States)

    2013-10-31

    ... DHC-8-400, -401, and -402 airplanes. This AD was prompted by reports of movement of the rudder pedals...., Washington, DC. For service information identified in this AD, contact Bombardier, Inc., Q-Series Technical... Canada, has issued Canadian Airworthiness Directive CF- 2012-02R1, dated October 12, 2012 (referred to...

  12. 77 FR 7521 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-02-13

    ... report of a rudder hard-over event on a Model 747-400 series airplane, caused by a rudder power control... commanding full retract, pilot pedal inputs were ineffective in moving the lower rudder back to the right..., or on the distribution of power and responsibilities among the various levels of government. For the...

  13. Seat belts and shoulder harnesses : smart protection in small airplanes.

    Science.gov (United States)

    2004-05-01

    Seat belts alone will protect you only in minor impacts. : Using shoulder belts in small aircraft would reduce major injuries by 88% and fatalities by 20%. Shoulder belt kits are now available for most airplanes. : Proper use and installation of chil...

  14. 77 FR 40828 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-07-11

    ...). SUMMARY: We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model DC-10-10 and MD-10-10F airplanes. This proposed AD was prompted by a report that the safe life limit on...-140, 1200 New Jersey Avenue SE., Washington, DC 20590. Hand Delivery: Deliver to Mail address above...

  15. 78 FR 35749 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-06-14

    ... Bulletin 777-54-0028, dated May 25, 2012: Do a general visual inspection for hydraulic fluid contamination... airplanes. This AD was prompted by reports of hydraulic fluid contamination (including contamination caused... bay. This AD requires repetitive general visual inspections of the strut forward dry bay for the...

  16. 77 FR 12166 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-02-29

    ... Air Transport, a company of DHL, requested that we revise the NPRM (76 FR 2848, January 18, 2011) to... Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are... to issue rules on aviation safety. Subtitle I, Section 106, describes the authority of the FAA...

  17. 78 FR 4038 - Critical Parts for Airplane Propellers

    Science.gov (United States)

    2013-01-18

    ... because it updates the existing regulations for airplane propellers. I. Overview of Final Rule Part 35.... General Overview of Comments The FAA received three comments. One was from a repair station, Sensenich...,555.60 per respondent which will occur on the effective date of the rule. The total cost for the three...

  18. 75 FR 32255 - Airworthiness Directives; Learjet Inc. Model 60 Airplanes

    Science.gov (United States)

    2010-06-08

    ..., Kansas 67209-2942; telephone 316-946-2000; fax 316-946-2220; e-mail ac.ict@aero.bombardier.com ; Internet..., could cause another accident because of the possibility that future revisions to the AMM might not... to all business jets and other large airplanes and to those with high takeoff and landing speeds...

  19. 77 FR 34879 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-06-12

    ... left and right engine strut aft fairings with a new one which includes an integral support clamp made of nickel alloy 625. This proposed AD would also add airplanes to the applicability. We are proposing... made of nickel alloy 625. Boeing Special Attention Service Bulletin 737-54-1043, Revision 2, dated...

  20. 78 FR 43768 - Airworthiness Directives; Learjet Inc. Airplanes

    Science.gov (United States)

    2013-07-22

    ... a report that the fire barrier seal on the external baggage door does not seal the surrounding door... referenced service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton... of the cost to the public. Conclusion We reviewed the relevant data and determined that air safety...

  1. 78 FR 18531 - Airworthiness Directives; Learjet Inc. Airplanes

    Science.gov (United States)

    2013-03-27

    ... spoiler and thrust reverser system due to external damage, particularly from tire failure, which could... information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information on..., approved, and available, we might consider additional rulemaking. Costs of Compliance We estimate that this...

  2. 78 FR 70214 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-11-25

    ... FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, Washington. For information on the... inspections. The NPRM specified repeating the ``external detailed inspection'' at the times specified in table... the economic burden on any operator or increase the scope of this AD. Costs of Compliance We estimate...

  3. 77 FR 66757 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-11-07

    ... AD would instead require repetitive external eddy current inspections for cracking of certain... copies of the referenced service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue.... Corrective actions in an AD could include, for example, repairs. Costs of Compliance We estimate that this...

  4. 77 FR 12170 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-02-29

    ... ``fastener locations'' throughout this AD. Request To Include FAA-Approved Repair Data Continental Airlines... service information, it would allow a quicker return to service for airplanes on which damage is found..., January 22, 2010). We also determined that these changes will not increase the economic burden on any...

  5. 76 FR 72853 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2011-11-28

    ... result in sudden fracture and failure of the fuselage skin panels, and consequent rapid decompression of... fracture and failure of the fuselage skin panels, and consequent rapid decompression of the airplane... power and responsibilities among the various levels of government. For the reasons discussed above, I...

  6. Physical and situational inequality on airplanes predicts air rage.

    Science.gov (United States)

    DeCelles, Katherine A; Norton, Michael I

    2016-05-17

    We posit that the modern airplane is a social microcosm of class-based society, and that the increasing incidence of "air rage" can be understood through the lens of inequality. Research on inequality typically examines the effects of relatively fixed, macrostructural forms of inequality, such as socioeconomic status; we examine how temporary exposure to both physical and situational inequality, induced by the design of environments, can foster antisocial behavior. We use a complete set of all onboard air rage incidents over several years from a large, international airline to test our predictions. Physical inequality on airplanes-that is, the presence of a first class cabin-is associated with more frequent air rage incidents in economy class. Situational inequality-boarding from the front (requiring walking through the first class cabin) versus the middle of the plane-also significantly increases the odds of air rage in both economy and first class. We show that physical design that highlights inequality can trigger antisocial behavior on airplanes. More broadly, these results point to the importance of considering the design of environments-from airplanes to office layouts to stadium seating-in understanding both the form and emergence of antisocial behavior.

  7. 77 FR 21420 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Science.gov (United States)

    2012-04-10

    ...-feed wiring, and revising the airplane flight manual to include procedures to use when the left or..., 2011 (76 FR 54141), and proposed to require adding diodes to the fuel cross-feed wiring, and revising... OFF. Comments We gave the public the opportunity to participate in developing this AD. The following...

  8. 77 FR 3 - Airworthiness Directives; Dassault Aviation Airplanes

    Science.gov (United States)

    2012-01-03

    ... wiring in the RAT generator, which could result in degraded direct current power to essential airplane... degraded direct current power which is distributed to essential aeroplane systems and therefore aeroplane... to prevent loose internal wiring in the RAT generator, which could result in degraded direct current...

  9. 77 FR 75590 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Science.gov (United States)

    2012-12-21

    ... Accomplished in Accordance With Previous Service Information Cessna Aircraft Company released the following POH... Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed... Aircraft Company (Cessna) (previously COLUMBIA or LANCAIR) Models LC40-550FG, LC41-550FG, and LC42-550FG...

  10. 77 FR 2669 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-01-19

    ...--General,'' of the Boeing 737- 300, 737-400, or 737-500 Structural Repair Manual, with regard to fastener... Boeing Company Model 737-300, -400, and -500 series airplanes. The existing AD currently requires...-13-27, amendment 39-14164 (70 FR 36821, June 27, 2005), for certain Boeing Model 737-300, -400, and...

  11. 77 FR 6692 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-02-09

    ... Airworthiness Manual for the Analog Transient Suppression Device Installation Applicable to Boeing 737- 100...). SUMMARY: We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737... Transient Suppression Device Installation Applicable to Boeing 737-100 through -500 Airplanes Supplemental...

  12. 77 FR 38547 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-06-28

    ..., from stringer 15 left to stringer 15 right, in accordance with Boeing 737 Nondestructive Test Manual D6... accordance with Boeing 737 Nondestructive Test Manual D6- 37239, Part 6, Section 51-00-00, Figure 23, dated... The Boeing Company Model 737-100, -200, -200C, -300, -400, and -500 series airplanes. That AD requires...

  13. 77 FR 54793 - Airworthiness Directives; the Boeing Company Airplanes

    Science.gov (United States)

    2012-09-06

    ... certain types of failures or certain explosion-proof pump boundaries would limit the application of a... explosions and consequent loss of the airplane. DATES: This AD is effective October 11, 2012. Examining the... burning through the pump housing's explosion- proof boundaries'' (instead of those that ``can cause arcing...

  14. 78 FR 59304 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-09-26

    ... conditioning temperature sensor, gasper air outlet, and diffuser on the left side of the control cabin with....com . You may review copies of the referenced service information at the FAA, Transport Airplane... metal clamps on the hoses to the air conditioning temperature sensor, gasper air outlet, and diffuser on...

  15. 77 FR 44511 - Airworthiness Directives; Alpha Aviation Concept Limited Airplanes

    Science.gov (United States)

    2012-07-30

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Alpha Aviation... (AD) for Alpha Aviation Concept Limited Model R2160 Airplanes. This proposed AD results from mandatory... following methods: Federal eRulemaking Portal: Go to http://www.regulations.gov . Follow the instructions...

  16. 78 FR 49908 - Airworthiness Directives; Eclipse Aerospace, Inc. Airplanes

    Science.gov (United States)

    2013-08-16

    ...-007-AD; Amendment 39-17542; AD 2013-16-04] RIN 2120-AA64 Airworthiness Directives; Eclipse Aerospace... adopting a new airworthiness directive (AD) for all Eclipse Aerospace, Inc. Model EA500 airplanes equipped... service information identified in this AD, contact Eclipse Aerospace, Inc., 26 East Palatine Road...

  17. 77 FR 54787 - Airworthiness Directives; M7 Aerospace LLC Airplanes

    Science.gov (United States)

    2012-09-06

    ...-17177; AD 2012-18-01] RIN 2120-AA64 Airworthiness Directives; M7 Aerospace LLC Airplanes AGENCY: Federal... new airworthiness directive (AD) for all M7 Aerospace LLC Models SA226-AT, SA226-T, SA226-T(B), SA226... information identified in this AD, contact M7 Aerospace LP, 10823 NE Entrance Road, San Antonio, Texas 78216...

  18. 78 FR 9781 - Airworthiness Directives; Pacific Aerospace Limited Airplanes

    Science.gov (United States)

    2013-02-12

    ...-044-AD; Amendment 39-17335; AD 2013-03-01] RIN 2120-AA64 Airworthiness Directives; Pacific Aerospace... Aerospace Limited Models FU24-954 and FU24A-954 airplanes. This AD results from mandatory continuing.... For service information identified in this AD, contact Pacific Aerospace Limited, Hamilton Airport...

  19. 75 FR 61657 - Airworthiness Directives; Transport Category Airplanes

    Science.gov (United States)

    2010-10-06

    ... prohibiting smoking in the lavatory and disposal of cigarettes in the lavatory waste receptacles... cigarettes in the lavatory waste receptacles; establishment of a procedure to announce to airplane occupants... to request approval of an alternative method of compliance (AMOC). This provision did not appear in...

  20. 77 FR 10352 - Airworthiness Directives; Various Transport Category Airplanes

    Science.gov (United States)

    2012-02-22

    ... placards prohibiting smoking in the lavatory and disposal of cigarettes in the lavatory waste receptacles... require installation of placards prohibiting smoking in the lavatory and disposal of cigarettes in the... an airplane with multiple lavatory door ashtrays. Mr. Young provided alternative text to address this...

  1. 78 FR 44473 - Airworthiness Directives; Dassault Aviation Airplanes

    Science.gov (United States)

    2013-07-24

    ... FALCON; Model MYSTERE-FALCON 200 airplanes; and Model MYSTERE-FALCON 20-C5, 20-D5, 20-E5, and 20-F5... Falcon Jet, P.O. Box 2000, South Hackensack, NJ 07606; telephone 201-440-6700; Internet http://www... bottle cartridges have been reported on certain Dassault Aviation Fan Jet Falcon and Myst re-Falcon 20...

  2. 78 FR 16198 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-03-14

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; The Boeing Company... Boeing Company Model MD-11 and MD-11F airplanes. The existing AD currently requires inspecting to... Company: Docket No. FAA-2013-0210; Directorate Identifier 2012-NM-053-AD. (a) Comments Due Date The FAA...

  3. 78 FR 25374 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-05-01

    ...-078-AD; Amendment 39-17430; AD 2013-08-13] RIN 2120-AA64 Airworthiness Directives; The Boeing Company... new airworthiness directive (AD) for certain The Boeing Company Model 767-300 series airplanes. This...): 2013-08-13 The Boeing Company: Amendment 39-17430; Docket No. FAA- 2012-1073; Directorate Identifier...

  4. 78 FR 43770 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-07-22

    ...-072-AD; Amendment 39-17508; AD 2013-14-03] RIN 2120-AA64 Airworthiness Directives; The Boeing Company... new airworthiness directive (AD) for all The Boeing Company Model 727 airplanes. This AD was prompted... airworthiness directive (AD): 2013-14-03 The Boeing Company: Amendment 39-17508 ; Docket No. FAA- 2013-0299...

  5. 78 FR 39633 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-07-02

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; The Boeing Company... Company Model 757-200, - 200PF, and -200CB series airplanes. The existing ADs currently require repetitive... following new AD: The Boeing Company: Docket No. FAA-2013-0541; Directorate Identifier 2011-NM-097-AD. (a...

  6. 78 FR 24985 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Science.gov (United States)

    2013-04-29

    ... Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule; correction.... That AD applies to all Cessna Aircraft Company (Cessna) Models 190, 195 (L-126A,B,C), 195A, and 195B... amendatory instruction are corrected to read as follows: 2004-21-08 R1 Cessna Aircraft Company: Amendment 39...

  7. 76 FR 77157 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2011-12-12

    ...; Federal Register #0; #0; #0;This section of the FEDERAL REGISTER contains notices to the public of #0;the... information management system (AIMS) hardware. We are proposing this AD to eliminate T/R thermal damage caused... information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, Washington. For...

  8. 78 FR 40050 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-07-03

    ... repetitive inspection interval and add rub strip installation for airplanes with wear or blend that exceeds... Action Installation of CRES rub strips in accordance with Boeing Service Bulletin 747-53-2721, Revision 2... inspections specified in paragraphs (g) and (h) of this AD at the locations of the CRES rub strip...

  9. 77 FR 31169 - Airworthiness Directives; Piper Aircraft, Inc. Airplanes

    Science.gov (United States)

    2012-05-25

    ...-002-AD; Amendment 39-17058; AD 2012-10-09] RIN 2120-AA64 Airworthiness Directives; Piper Aircraft, Inc... superseding an existing airworthiness directive (AD) for certain Piper Aircraft, Inc. (type certificate previously held by The New Piper Aircraft Inc.) Models PA-31T and PA-31T1 airplanes. That AD currently...

  10. 77 FR 45979 - Airworthiness Directives; Piper Aircraft, Inc. Airplanes

    Science.gov (United States)

    2012-08-02

    ...] RIN 2120-AA64 Airworthiness Directives; Piper Aircraft, Inc. Airplanes AGENCY: Federal Aviation... airworthiness directive (AD) for certain Piper Aircraft, Inc. (type certificate previously held by The New Piper... Federal holidays. For service information identified in this proposed AD, contact Piper Aircraft, Inc...

  11. 77 FR 29914 - Airworthiness Directives; BAE SYSTEMS (Operations) Limited Airplanes

    Science.gov (United States)

    2012-05-21

    ... (Operations) Limited Model 4101 airplanes. This proposed AD was prompted by reports that the fire extinguisher... would require inspecting to determine if a certain fire extinguisher bottle is installed, and repositioning the affected fire extinguisher bottle to the vertical position. We are proposing this AD to detect...

  12. 77 FR 16186 - Airworthiness Directives; Dassault Aviation Airplanes

    Science.gov (United States)

    2012-03-20

    ....dassaultfalcon.com . You may review copies of the referenced service information at the FAA, Transport Airplane... regulatory, economic, environmental, and energy aspects of this proposed AD. We will consider all comments... proposed AD. Discussion The European Aviation Safety Agency (EASA), which is the Technical Agent for the...

  13. 77 FR 34881 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-06-12

    ...-400, -400D, and -400F series airplanes. This proposed AD was prompted by reports of crown frame web... this AD to prevent complete fracture of the crown frame assembly, and consequent damage to the skin and... 27, 2012. ADDRESSES: You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by...

  14. Blended Buffet-Load-Alleviation System for Fighter Airplane

    Science.gov (United States)

    Moses, Robert W.

    2005-01-01

    The capability of modern fighter airplanes to sustain flight at high angles of attack and/or moderate angles of sideslip often results in immersion of part of such an airplane in unsteady, separated, vortical flow emanating from its forebody or wings. The flows from these surfaces become turbulent and separated during flight under these conditions. These flows contain significant levels of energy over a frequency band coincident with that of low-order structural vibration modes of wings, fins, and control surfaces. The unsteady pressures applied to these lifting surfaces as a result of the turbulent flows are commonly denoted buffet loads, and the resulting vibrations of the affected structures are known as buffeting. Prolonged exposure to buffet loads has resulted in fatigue of structures on several airplanes. Damage to airplanes caused by buffeting has led to redesigns of airplane structures and increased support costs for the United States Air Force and Navy as well as the armed forces of other countries. Time spent inspecting, repairing, and replacing structures adversely affects availability of aircraft for missions. A blend of rudder-control and piezoelectric- actuator engineering concepts was selected as a basis for the design of a vertical-tail buffet-load-alleviation system for the F/A-18 airplane. In this system, the rudder actuator is used to control the response of the first tail vibrational mode (bending at a frequency near 15 Hz), while directional patch piezoelectric actuators are used to control the second tail vibrational mode (tip torsion at a frequency near 45 Hz). This blend of two types of actuator utilizes the most effective features of each. An analytical model of the aeroservoelastic behavior of the airplane equipped with this system was validated by good agreement with measured results from a full-scale ground test, flight-test measurement of buffet response, and an in-flight commanded rudder frequency sweep. The overall performance of the

  15. The light airplane : modern theoretical aerodynamics as applied to light airplane design with a series of charts

    Science.gov (United States)

    Driggs, Ivan H

    1925-01-01

    T.M. 311 gave a short outline of modern theoretical aerodynamics as applied to light airplane design. This discussion may have been somewhat obscure to the nontechnical reader. A series of charts or curves should serve to clear up such obscurity as well as to more definitely emphasize those quantities most important for each flight characteristic.

  16. 78 FR 63845 - Special Conditions: Embraer S.A., Model EMB-550 Airplanes; Isolation or Airplane Electronic...

    Science.gov (United States)

    2013-10-25

    ... configuration with low wing and T-tail empennage. The primary structure is metal with composite empennage and... by the pilot or copilot sidestick. The digital systems architecture for the Embraer EMB-550 series of airplanes is composed of several connected networks. This proposed network architecture is used for a...

  17. Design and analysis of a fuel-efficient single-engine, turboprop-powered, business airplane

    Science.gov (United States)

    Martin, G. L.; Everest, D. E., Jr.; Lovell, W. A.; Price, J. E.; Walkley, K. B.; Washburn, G. F.

    1981-01-01

    The speed, range, payload, and fuel efficiency of a general aviation airplane powered by one turboprop engine was determined and compared to a twin engine turboprop aircraft. An airplane configuration was developed which can carry six people for a noreserve range of 2,408 km at a cruise speed above 154 m/s, and a cruise altitude of about 9,144 m. The cruise speed is comparable to that of the fastest of the current twin turboprop powered airplanes. It is found that the airplane has a cruise specific range greater than all twin turboprop engine airplanes flying in its speed range and most twin piston engine airplanes flying at considerably slower cruise airspeeds.

  18. Commercialization in Innovation Management

    DEFF Research Database (Denmark)

    Sløk-Madsen, Stefan Kirkegaard; Ritter, Thomas; Sornn-Friese, Henrik

    For any firm, the ultimate purpose of new product development is the commercialization of the new offerings. Despite its regular use in the product innovation and general management science literature, commercialization is only loosely defined and applied. This lack of conceptual clarity about...... the processes at the interface between product development and customer application is noteworthy as it hinders the theoretical development of the field. In this paper, we explore how research has advanced our understanding of commercialization in product innovation over a 30 year period by mapping different...... definitions and interpretations of commercialization. We offer a process-oriented definition of commercialization that is theoretically founded in the capability-based view of the firm. We also outline an agenda for future theoretical development and empirical research on commercialization aimed at advancing...

  19. 75 FR 43878 - Airworthiness Directives; DASSAULT AVIATION Model Falcon 10 Airplanes; Model FAN JET FALCON, FAN...

    Science.gov (United States)

    2010-07-27

    ... Model Falcon 10 Airplanes; Model FAN JET FALCON, FAN JET FALCON SERIES C, D, E, F, and G Airplanes.... Since that NPRM was issued, we have determined that Model FAN JET FALCON SERIES C, D, E, F, and G... FALCON, FAN JET FALCON SERIES C, D, E, F, and G airplanes, and Model MYSTERE-FALCON 20-C5, 20-D5, 20-E5...

  20. Reconstruction of the 1994 Pittsburgh Airplane Accident Using a Computer Simulation

    Science.gov (United States)

    Parks, Edwin K.; Bach, Ralph E., Jr.; Shin, Jae Ho

    1998-01-01

    On September 8, 1994, a Boeing 737-300 passenger airplane was on a downwind approach to the Pittsburgh International Airport at an altitude of 5000 feet above ground level (6000 feet MSL). While in a shallow left turn onto a downwind approach heading, the airplane crossed into the vortex trail of a Boeing 727 flying in the same approach pattern about 4 miles ahead. The B-737 airplane rolled and turned sharply to the left, exited the vortex wake and plunged into the ground. Weather was not a factor in the accident. The airplane was equipped with a 11+ channel digital Flight Data Recorder (FDR) and a multiple channel Cockpit Voice Recorder (CVR). Both recorders were recovered from the crash site and provided excellent data for the development of an accident scenario. Radar tracking of the two airplanes as well as the indicated air speed (IAS) perturbations clearly visible on the B-737 FDR recordings indicate that the upset was apparently initiated by the airplane's crossing into the wake of the B-727 flying ahead in the same traffic pattern. A 6 degree-of-freedom simulation program for the B-737 airplane using MATLAB and SIMULINK was constructed. The simulation was initialized at the stabilized flight conditions of the airplane about 13 seconds prior to its entry into the vortex trail of the B-727 airplane. By assuming a certain combination of control inputs, it was possible to produce a simulated motion that closely matched that recorded on the FDR.

  1. 78 FR 65153 - Special Conditions: Learjet Model 45 Series Airplanes; Aircraft Electronic System Security...

    Science.gov (United States)

    2013-10-31

    ... airplane systems is not compromised by unauthorized wired or wireless electronic connections. For the... from aircraft external sources (e.g., wireless devices, Internet connectivity) to the previously...

  2. Can triptans safely be used for airplane headache?

    Science.gov (United States)

    Ipekdal, H Ilker; Karadaş, Ömer; Öz, Oğuzhan; Ulaş, Ümit H

    2011-12-01

    A few cases of airplane headache (AH) have been reported in the literature. Treatment strategies of AHs are also controversial. We followed-up five patients with AH. They were symptom-free during the daytime. Their physical, neurological, and ear-nose-throat examinations were all normal. Blood chemistries, cerebral magnetic resonance imaging, cerebral magnetic resonance imaging angiography, and paranasal sinus tomography studies of the patients were also normal. We preferred triptans because of the possible effect on the mechanism of AH. Patients were recommended to use single-dose of their drugs half an hour prior to flights. All of the patients had a good response to single dose triptan treatment and became headache-free during flights. This is the first study which puts forward the usefulness of the triptans as a safe treatment choice for airplane AH.

  3. Commercial applications of ferrofluids

    Science.gov (United States)

    Raj, K.; Moskowitz, R.

    1990-04-01

    Ferrofluids have been in the commercial arena for over two decades. In this paper, the most advanced, successful commercial applications of ferrofluids are discussed. These applications center around the tribological characteristics of ferrofluids, e.g., sealing, damping and hydrodynamic bearings. Also, an account of some lesser known applications is presented.

  4. Recycling Sounds in Commercials

    DEFF Research Database (Denmark)

    Larsen, Charlotte Rørdam

    2012-01-01

    Commercials offer the opportunity for intergenerational memory and impinge on cultural memory. TV commercials for foodstuffs often make reference to past times as a way of authenticating products. This is frequently achieved using visual cues, but in this paper I would like to demonstrate how suc...

  5. Physical and situational inequality on airplanes predicts air rage

    OpenAIRE

    DeCelles, Katherine A.; Norton, Michael I.

    2016-01-01

    We suggest that physical and situational inequality are built into people’s everyday environments—such as the modern airplane—and that exposure to these forms of inequality can trigger antisocial behavior. Analyses reveal that air rage is more common in economy class on airplanes, where inequality is physically present, and in both economy and first class when inequality is situationally salient. We extend research demonstrating that the salience of inequality decreases prosocial behavior by ...

  6. Light airplane crash tests at three flight-path angles

    Science.gov (United States)

    Castle, C. B.; Alfaro-Bou, E.

    1978-01-01

    Three similar twin engine general aviation airplane specimens were crash tested at Langley impact dynamics research facility at 27 m/sec and at flight-path angles of -15 deg, -30 deg, and -45 deg. Other flight parameters were held constant. The test facility, instrumentation, test specimens, and test method are briefly described. Structural damage and accelerometer data for each of the three impact conditions are presented and discussed.

  7. Light airplane crash tests at three roll angles

    Science.gov (United States)

    Castle, C. B.; Alfaro-Bou, E.

    1979-01-01

    Three similar twin engine general aviation airplanes were crash tested at the Langley impact dynamics research facility at 27 m/sec and at nominal roll angles of 0 deg, -15 deg, and -30 deg. Other flight parameters were held constant. The test facility, instrumentation, test specimens, and test method are briefly described. Structural damage and accelerometer data for each of the three impact conditions are presented and discussed.

  8. Light Airplane Crash Test at Three Pitch Angles

    Science.gov (United States)

    Vaughan, Victor L., Jr.; Alfaro-Bou, Emilio

    1979-01-01

    Three similar twin-engine general-aviation airplane specimens were crash tested at the Langley Impact Dynamics Research Facility at 27 m/sec, a flight-path angle of -15deg, and pithch angles of -15deg, 0deg, and 15deg. Other crash parameters were held constant. The test facility, instrumentation, test specimens, and test method are briefly described. Structural damage and accelerometer data for each of the three impact conditions are presented and discussed.

  9. Light airplane crash tests at three pitch angles

    Science.gov (United States)

    Vaughan, V. L., Jr.; Alfaro-Bou, E.

    1979-01-01

    Three similar twin-engine general aviation airplane specimens were crash tested at an impact dynamics research facility at 27 m/sec, a flight path angle of -15 deg, and pitch angles of -15 deg, 0 deg, and 15 deg. Other crash parameters were held constant. The test facility, instrumentation, test specimens, and test method are briefly described. Structural damage and accelerometer data for each of the three impact conditions are presented and discussed.

  10. 78 FR 24037 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2013-04-24

    ... new airworthiness directive (AD) for all The Boeing Company Model DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30F (KC-10A and KDC-10), DC-10-40, DC-10-40F, MD-10-10F, MD-10-30F, MD-11, and MD-11F..., such as Model DC-10 airplanes that do not have OEM-installed equipment, any fuel pump running in an...

  11. Airplane automatic control force trimming device for asymmetric engine failures

    Science.gov (United States)

    Stewart, Eric C. (Inventor)

    1987-01-01

    The difference in dynamic pressure in the propeller slipstreams as measured by sensors is divided by the freestream dynamic pressure generating a quantity proportional to the differential thrust coefficient. This quantity is used to command an electric trim motor to change the position of trim tab thereby retrimming the airplane to the new asymmetric power condition. The change in position of the trim tab produced by the electric trim motor is summed with the pilot's input to produce the actual trim tab position.

  12. Pushing Ahead - SUPRA Airplane Model for Upset Recovery

    OpenAIRE

    Abramov, Nikolay; Goman, M.; Khrabrov, A. N. (Alexander N.); E. N. Kolesnikov; Fucke, Lars; Soemarwoto, B.; Smaili, H.

    2012-01-01

    One of the primary objectives of the European Union 7th Framework Program research project SUPRA – “Simulation of Upset Recovery in Aviation” – is the development and validation of the aerodynamic model of a generic large transport airplane aimed for piloted simulation in the post-stall region and upset recovery training. Modeling methods for prediction of post-stall flight dynamics, use of the wind tunnel data from different experimental facilities complemented by CFD analysis, validation cr...

  13. Numerical simulation of RCS for carrier electronic warfare airplanes

    OpenAIRE

    Yue, Kuizhi; Liu, Wenlin; Li, Guanxiong; Ji, Jinzu; Yu, Dazhao

    2015-01-01

    This paper studies the radar cross section (RCS) of carrier electronic warfare airplanes. Under the typical naval operations section, the mathematical model of the radar wave’s pitch angle incidence range analysis is established. Based on the CATIA software, considering dynamic deflections of duck wing leading edge flaps, flaperons, horizontal tail, and rudder, as well as aircraft with air-to-air missile, anti-radiation missile, electronic jamming pod, and other weapons, the 3D models of carr...

  14. Performance of two load-limiting subfloor concepts in full-scale general aviation airplane crash tests

    Science.gov (United States)

    Carden, H. D.

    1984-01-01

    Three six-place, low wing, twin-engine general aviation airplane test specimens were crash tested at the langley Impact Dynamics research Facility under controlled free-flight conditions. One structurally unmodified airplane was the baseline airplane specimen for the test series. The other airplanes were structurally modified to incorporate load-limiting (energy-absorbing) subfloor concepts into the structure for full scale crash test evaluation and comparison to the unmodified airplane test results. Typically, the lowest floor accelerations and anthropomorphic dummy occupant responses, and the least seat crushing of standard and load-limiting seats, occurred in the modified load-limiting subfloor airplanes wherein the greatest structural crushing of the subfloor took place. The better performing of the two load-limiting subfloor concepts reduced the peak airplane floor accelerations at the pilot and four seat/occupant locations to -25 to -30 g's as compared to approximately -50 to -55 g's acceleration magnitude for the unmodified airplane structure.

  15. 76 FR 54923 - Special Conditions: Dassault Falcon Model 900 and 900EX Airplanes; Interaction of Systems and...

    Science.gov (United States)

    2011-09-06

    ... Falcon Model 900 and 900EX airplanes. These airplanes have Allied Signal engines, a maximum passenger... displacement of control surface, thresholds, or any other system nonlinearities) must be accounted for in a...

  16. If we designed airplanes like we design drugs....

    Science.gov (United States)

    Woltosz, Walter S

    2012-01-01

    In the early days, airplanes were put together with parts designed for other purposes (bicycles, farm equipment, textiles, automotive equipment, etc.). They were then flown by their brave designers to see if the design would work--often with disastrous results. Today, airplanes, helicopters, missiles, and rockets are designed in computers in a process that involves iterating through enormous numbers of designs before anything is made. Until very recently, novel drug-like molecules were nearly always made first like early airplanes, then tested to see if they were any good (although usually not on the brave scientists who created them!). The resulting extremely high failure rate is legendary. This article describes some of the evolution of computer-based design in the aerospace industry and compares it with the progress made to date in computer-aided drug design. Software development for pharmaceutical research has been largely entrepreneurial, with only relatively limited support from government and industry end-user organizations. The pharmaceutical industry is still about 30 years behind aerospace and other industries in fully recognizing the value of simulation and modeling and funding the development of the tools needed to catch up.

  17. Natural laminar flow experiments on modern airplane surfaces

    Science.gov (United States)

    Holmes, B. J.; Obara, C. J.; Yip, L. P.

    1984-01-01

    Flight and wind-tunnel natural laminar flow experiments have been conducted on various lifting and nonlifting surfaces of several airplanes at unit Reynolds numbers between 0.63 x 10 to the 6th power/ft and 3.08 x 10 to the 6th power/ft, at Mach numbers from 0.1 to 0.7, and at lifting surface leading-edge sweep angles from 0 deg to 63 deg. The airplanes tested were selected to provide relatively stiff skin conditions, free from significant roughness and waviness, on smooth modern production-type airframes. The observed transition locations typically occurred downstream of the measured or calculated pressure peak locations for the test conditions involved. No discernible effects on transition due to surface waviness were observed on any of the surfaces tested. None of the measured heights of surface waviness exceeded the empirically predicted allowable surface waviness. Experimental results consistent with spanwise contamination criteria were observed. Large changes in flight-measured performance and stability and control resulted from loss of laminar flow by forced transition. Rain effects on the laminar boundary layer caused stick-fixed nose-down pitch-trim changes in two of the airplanes tested. No effect on transition was observed for flight through low-altitude liquid-phase clouds. These observations indicate the importance of fixed-transition tests as a standard flight testing procedure for modern smooth airframes.

  18. Headache associated with airplane travel: a rare entity.

    Science.gov (United States)

    Cherian, Ajith; Mathew, Mini; Iype, Thomas; Sandeep, P; Jabeen, Afshan; Ayyappan, K

    2013-01-01

    Airplane travel headache is rare and has recently been described as a new form of headache associated with a specific situation. Of the 1,208 patients with primary headaches attending a tertiary care neurology hospital, two (0.16%) patients satisfied the criteria for headache related to airplane travel. Both the patients fulfilled the proposed diagnostic criteria for airplane travel headache. This unique headache had a mean duration of 24 minutes, localized to the medial supraorbital region described as having an intense jabbing or stabbing character that occurred exclusively and maximally during aircraft landing or take-off, following which pain intensity subsided . This rare headache felt on aircraft descent is probably due to the squeeze effect on the frontal sinus wall, when air trapped inside it contracts producing a negative pressure leading to mucosal edema, transudation and intense pain. Use of nasal decongestants either alone or in combination with naproxen sodium prior to ascent and descent abated the headache episodes. Awareness about this unique entity is essential to provide proper treatment and avoid patient suffering.

  19. Numerical simulation of RCS for carrier electronic warfare airplanes

    Directory of Open Access Journals (Sweden)

    Yue Kuizhi

    2015-04-01

    Full Text Available This paper studies the radar cross section (RCS of carrier electronic warfare airplanes. Under the typical naval operations section, the mathematical model of the radar wave’s pitch angle incidence range analysis is established. Based on the CATIA software, considering dynamic deflections of duck wing leading edge flaps, flaperons, horizontal tail, and rudder, as well as aircraft with air-to-air missile, anti-radiation missile, electronic jamming pod, and other weapons, the 3D models of carrier electronic warfare airplanes Model A and Model B with weapons were established. Based on the physical optics method and the equivalent electromagnetic flow method, by the use of the RCSAnsys software, the characteristics of carrier electronic warfare airplanes’ RCS under steady and dynamic flights were simulated under the UHF, X, and S radar bands. This paper researches the detection probability of aircraft by radars under the condition of electronic warfare, and completes the mathematical statistical analysis of the simulation results. The results show that: The Model A of carrier electronic warfare airplane is better than Model B on stealth performance and on discover probability by radar detection effectively.

  20. GPM ground validation via commercial cellular networks: an exploratory approach

    Science.gov (United States)

    Rios Gaona, Manuel Felipe; Overeem, Aart; Leijnse, Hidde; Brasjen, Noud; Uijlenhoet, Remko

    2016-04-01

    The suitability of commercial microwave link networks for ground validation of GPM (Global Precipitation Measurement) data is evaluated here. Two state-of-the-art rainfall products are compared over the land surface of the Netherlands for a period of 7 months, i.e., rainfall maps from commercial cellular communication networks and Integrated Multi-satellite Retrievals for GPM (IMERG). Commercial microwave link networks are nowadays the core component in telecommunications worldwide. Rainfall rates can be retrieved from measurements of attenuation between transmitting and receiving antennas. If adequately set up, these networks enable rainfall monitoring tens of meters above the ground at high spatiotemporal resolutions (temporal sampling of seconds to tens of minutes, and spatial sampling of hundreds of meters to tens of kilometers). The GPM mission is the successor of TRMM (Tropical Rainfall Measurement Mission). For two years now, IMERG offers rainfall estimates across the globe (180°W - 180°E and 60°N - 60°S) at spatiotemporal resolutions of 0.1° x 0.1° every 30 min. These two data sets are compared against a Dutch gauge-adjusted radar data set, considered to be the ground truth given its accuracy, spatiotemporal resolution and availability. The suitability of microwave link networks in satellite rainfall evaluation is of special interest, given the independent character of this technique, its high spatiotemporal resolutions and availability. These are valuable assets for water management and modeling of floods, landslides, and weather extremes; especially in places where rain gauge networks are scarce or poorly maintained, or where weather radar networks are too expensive to acquire and/or maintain.

  1. Commercial considerations for immunoproteomics.

    Science.gov (United States)

    Ferguson, Scott M

    2013-01-01

    The underlying drivers of scientific processes have been rapidly evolving, but the ever-present need for research funding is typically foremost amongst these. Successful laboratories are embracing this reality by making certain that their projects have commercial value right from the beginning of the project conception. Which factors to be considered for commercial success need to be well thought out and incorporated into a project plan with similar levels of detail as would be the technical elements. Specific examples of commercial outcomes in the field of Immunoproteomics are exemplified in this discussion.

  2. 75 FR 76647 - Special Conditions: Boeing Model 747-8 Airplanes, Systems and Data Networks Security-Isolation or...

    Science.gov (United States)

    2010-12-09

    ... 747-8 Airplanes, Systems and Data Networks Security--Isolation or Protection From Unauthorized... information services, than previous 747-8 airplane models. This may allow the exploitation of network security... passenger domain computer systems to the airplane critical systems and data networks. The applicable...

  3. 76 FR 64857 - Airworthiness Directives; Bombardier, Inc. Model BD-100-1A10 (Challenger 300) Airplanes

    Science.gov (United States)

    2011-10-19

    .... Model BD-100-1A10 (Challenger 300) Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION... Bombardier, Inc. Model BD-100-1A10 (Challenger 300) airplanes, certificated in any category, serial numbers... (Challenger 300) airplanes, this AD applies to serial numbers 20003 and subsequent. This difference has been...

  4. Commercial Landing System

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Fisheries Statistics Division of the NOAA Fisheries has automated data summary programs that anyone can use to rapidly and easily summarize U.S. commercial...

  5. Commercial Manure Applicators

    Data.gov (United States)

    Iowa State University GIS Support and Research Facility — This layer represents the office location for Commercial Manure Services (CMS). They transport, handle, store or apply manure for a fee. The company must be licensed...

  6. Regional hydrothermal commercialization plan

    Energy Technology Data Exchange (ETDEWEB)

    1978-07-14

    This plan for the Rocky Mountain Basin and Range Region articulates the complete range of initiatives (federal, state, local, and industrial) required for the early commercialization of the regions geothermal resources. (MHR)

  7. Effects of Toy Guns and Airplanes on Children's Antisocial Free Play Behavior

    Science.gov (United States)

    Turner, Charles W.; Goldsmith, Diane

    1976-01-01

    To assess the effects of toy guns and toy airplanes on children's antisocial behavior, 4- and 5-year-olds (ten in Study I and 13 in Study II) were observed during 15-16 free play sessions. During experimental sessions children played either with (novel, aggressive) toy guns or with (novel, nonaggressive) toy airplanes in addition to their usual…

  8. 14 CFR Appendix K to Part 121 - Performance Requirements for Certain Turbopropeller Powered Airplanes

    Science.gov (United States)

    2010-01-01

    ... Turbopropeller Powered Airplanes K Appendix K to Part 121 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... AND OPERATIONS OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Pt. 121, App. K Appendix K to Part 121—Performance Requirements for Certain Turbopropeller Powered Airplanes 1...

  9. Stalling speeds and determination of manoeuver speed for Rogallo-winged microlight airplanes

    OpenAIRE

    Gratton, GB

    2008-01-01

    Rogallo-winged airplanes can display a non-square law of stall speed versus loading. This Note shows, from experimental data, the form of this relationship and how this has been used during the certification of such airplanes, through operating data and modification of either maneuver speed or the normal acceleration limits

  10. 14 CFR 121.515 - Flight time limitations: All airmen: airplanes.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Flight time limitations: All airmen: airplanes. 121.515 Section 121.515 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF... Operations § 121.515 Flight time limitations: All airmen: airplanes. No airman may be aloft as a flight...

  11. 14 CFR 121.513 - Flight time limitations: Overseas and international operations: airplanes.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Flight time limitations: Overseas and international operations: airplanes. 121.513 Section 121.513 Aeronautics and Space FEDERAL AVIATION...: airplanes. In place of the flight time limitations in §§ 121.503 through 121.511, a certificate holder...

  12. RESULTS OF AIRPLANE TU-204-300 OPERATED BY "VLADIVOSTOK AVIA" COMPANY FUEL FLOW MONITIRING

    Directory of Open Access Journals (Sweden)

    G. E. Maslennikova

    2014-01-01

    Full Text Available This article describes the results obtained from continuous monitoring of fuel flow on the airplanes Tu-204-300, operated by the aircompany "Vladivostok Avia". The reasons for the change in the cost of each copy of airplane and changes in fuel characteristics due to pilots manner of flying.

  13. 14 CFR 121.519 - Flight time limitations: Deadhead transportation: airplanes.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Flight time limitations: Deadhead transportation: airplanes. 121.519 Section 121.519 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... Limitations: Supplemental Operations § 121.519 Flight time limitations: Deadhead transportation: airplanes...

  14. 14 CFR 121.344 - Digital flight data recorders for transport category airplanes.

    Science.gov (United States)

    2010-01-01

    ...); (6) Pitch attitude; (7) Roll attitude; (8) Manual radio transmitter keying, or CVR/DFDR... of paragraphs (e)(1) and (e)(2) of this section, all Boeing 737 model airplanes must also comply with... (f)(1) of this section, all Boeing 737 model airplanes must also comply with the requirements of...

  15. 14 CFR Appendix B to Part 135 - Airplane Flight Recorder Specifications

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane Flight Recorder Specifications B Appendix B to Part 135 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION.... B Appendix B to Part 135—Airplane Flight Recorder Specifications Parameters Range Installed system 1...

  16. 14 CFR Appendix E to Part 91 - Airplane Flight Recorder Specifications

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Airplane Flight Recorder Specifications E Appendix E to Part 91 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION... Appendix E to Part 91—Airplane Flight Recorder Specifications Parameters Range Installed system 1 minimum...

  17. 77 FR 48473 - Airworthiness Directives; Fokker Services B.V. Airplanes

    Science.gov (United States)

    2012-08-14

    ... AD, accomplish the corrective actions in accordance with the approved maintenance documentation. If... directive (AD) for all Fokker Services B.V. Model F.28 Mark 0070 and 0100 airplanes. That NPRM proposed to... instructions for continued airworthiness for certain airplanes, and the FAA-approved maintenance program for...

  18. 76 FR 2848 - Airworthiness Directives; The Boeing Company Model 757 Airplanes

    Science.gov (United States)

    2011-01-18

    ... provide. We will also post a report summarizing each substantive verbal contact we receive about this... of the airplane. Actions Since Existing AD Was Issued Since we issued AD 2007-03-01, we have learned...-24-0105, Revision 5, dated July 30, 2009, states that these airplanes require a general visual...

  19. 77 FR 58970 - Special Conditions: Embraer S.A. Model EMB-550 Airplanes, Sudden Engine Stoppage

    Science.gov (United States)

    2012-09-25

    ... primary structure is metal with composite empennage and control surfaces. The Model EMB-550 airplane is... are electronically controlled using fly-by-wire (FBW) technology. The Model EMB-550 airplane... conditions are proposed: 1. For turbine-engine installations, the engine mounts, pylons, and adjacent...

  20. 76 FR 8917 - Special Conditions: Gulfstream Model GVI Airplane; Automatic Speed Protection for Design Dive Speed

    Science.gov (United States)

    2011-02-16

    ... /M C , the airplane is upset so as to take up a new flight path 7.5 degrees below the initial path... after initiating the upset, manual recovery is made at a load factor of 1.5 g (0.5 acceleration... below V C /M C , with power to maintain stabilized level flight at this speed, the airplane is upset so...

  1. 76 FR 31454 - Special Conditions: Gulfstream Model GVI Airplane; Automatic Speed Protection for Design Dive Speed

    Science.gov (United States)

    2011-06-01

    ... flight at V C /M C , the airplane is upset so as to take up a new flight path 7.5 degrees below the.... Twenty seconds after initiating the upset, manual recovery is made at a load factor of 1.5 g (0.5... Federal Aviation Administration 14 CFR Part 25 Special Conditions: Gulfstream Model GVI Airplane...

  2. 75 FR 68177 - Airworthiness Directives; The Boeing Company Model 757 and 767 Airplanes

    Science.gov (United States)

    2010-11-05

    ... alerting system (EICAS) to ensure that it receives both the LOW FUEL and FUEL CONFIG discrete signals from the fuel quantity processor unit, and alerts the flightcrew of a low fuel situation, and if the test...,310 (for per hour = $85 cycle. Model 757 per test cycle. airplanes). $36,125 (for Model 767 airplanes...

  3. 14 CFR 121.203 - Nontransport category airplanes: Landing limitations: Destination airport.

    Science.gov (United States)

    2010-01-01

    ... limitations: Destination airport. 121.203 Section 121.203 Aeronautics and Space FEDERAL AVIATION... airport. (a) No person operating a nontransport category airplane may take off that airplane at a weight... destination airport; and (2) Is greater than the weight allowable if the landing is to be made on the runway...

  4. 75 FR 1697 - Airworthiness Directives; Dassault-Aviation Model Falcon 7X Airplanes

    Science.gov (United States)

    2010-01-13

    ... Model Falcon 7X Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation...) None. Applicability (c) This AD applies to Dassault-Aviation Model Falcon 7X airplanes, certificated in... aeroplane with any radio- altimeter inoperative. Compliance (f) You are responsible for having the actions...

  5. 76 FR 24358 - Airworthiness Directives; Dassault-Aviation Model FALCON 7X Airplanes

    Science.gov (United States)

    2011-05-02

    ... Model FALCON 7X Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation.... Applicability (c) This AD applies to Dassault-Aviation Model FALCON 7X airplanes, certificated in any category... compromise the pilot capacity to react to abnormal or failure landing conditions. * * * * * Compliance (f...

  6. 75 FR 61655 - Airworthiness Directives; Piper Aircraft, Inc. Model PA-28-161 Airplanes

    Science.gov (United States)

    2010-10-06

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Piper Aircraft, Inc... directive (AD) for all Piper Aircraft, Inc. (Piper) Model PA-28-161 airplanes equipped with Thielert.... Piper Model PA-28-161 airplanes modified by STC No. SA03303AT have a similar unsafe design feature that...

  7. 78 FR 52841 - Airworthiness Directives; Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Airplanes

    Science.gov (United States)

    2013-08-27

    ... Corporation/Lockheed Martin Aeronautics Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT... Corporation/Lockheed Martin Aeronautics Company Model L-1011 series airplanes. AD 2005-15-01 required... service information identified in this AD, contact Lockheed Martin Corporation/Lockheed Martin Aeronautics...

  8. 78 FR 76772 - Special Conditions: Airbus Model A350-900 Airplanes; Permanently Installed Rechargeable Lithium...

    Science.gov (United States)

    2013-12-19

    ...: Nazih Khaouly, FAA, Airplane and Flight Crew Interface Branch, ANM-111, Transport Airplane Directorate... certified for extended operations (ETOPS) beyond 180 minutes at entry into service for up to a 420-minute... the appropriate flight crewmembers whenever the state-of- charge of the batteries has fallen below...

  9. 75 FR 58016 - Consensus Standards, Standard Practice for Design, Alteration, and Certification of Airplane...

    Science.gov (United States)

    2010-09-23

    ... Certification of Airplane Electrical Wiring Systems AGENCY: Federal Aviation Administration, DOT. ACTION: Notice...-07 Standard Practice for Design, Alteration, and Certification of Airplane Electrical Wiring Systems (Standard Practice) as an acceptable means of compliance to 14 CFR part 23 sections concerning electrical...

  10. 76 FR 472 - Harmonization of Airworthiness Standards for Transport Category Airplanes-Landing Gear Retracting...

    Science.gov (United States)

    2011-01-05

    ... Airworthiness Standards for Transport Category Airplanes--Landing Gear Retracting Mechanisms and Pilot... transport category airplanes on landing gear retracting mechanisms and the pilot compartment view. This... in a stalling maneuver, and would add an additional requirement to keep the landing gear and doors in...

  11. Technology Commercialization Program 1991

    Energy Technology Data Exchange (ETDEWEB)

    1991-11-01

    This reference compilation describes the Technology Commercialization Program of the Department of Energy, Defense Programs. The compilation consists of two sections. Section 1, Plans and Procedures, describes the plans and procedures of the Defense Programs Technology Commercialization Program. The second section, Legislation and Policy, identifies legislation and policy related to the Program. The procedures for implementing statutory and regulatory requirements are evolving with time. This document will be periodically updated to reflect changes and new material.

  12. EFFECTS OF COMMERCIAL CONTRACT

    OpenAIRE

    Ana-Maria Florea; Constantin Giurca

    2014-01-01

    The contract is a legal instrument used to organize economic and social life. International trade agreement has certain features in order to ensure the international exchange of goods and services between the Contracting Parties. In terms of commercial contract, there is a foreign origin element, that gives the parties the right to determine the law to govern the contract. A fundamental aspect of commercial contract, in addition to that of determining the law applicable to judicial report est...

  13. Commodification and commercial surrogacy.

    Science.gov (United States)

    Arneson, Richard J

    1992-01-01

    ... In this article I shall argue tentatively for the claim that commercial surrogacy should be legally permissible. I am more strongly convinced that a commitment to feminism should not predispose anyone against surrogacy. At least, no arguments offered so far should persuade anyone who is committed to equal rights for women and men and the dismantling of gender-based hierarchies to favor either legal prohibition or moral condemnation of commercial surrogacy.

  14. ERC commercialization activities

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-08-01

    The ERC family of companies is anticipating market entry of their first commercial product, a 2.8-MW power plant, in the second quarter of 1999. The present Cooperative Agreement provides for: (1) Commercialization planning and organizational development, (2) Completion of the pre-commercial DFC technology development, (3) Systems and plant design, (4) Manufacturing processes` scale-up to full-sized stack components and assemblies, (5) Upgrades to ERC`s test facility for full-sized stack testing, (6) Sub-scale testing of a DFC Stack and BOP fueled with landfill gas. This paper discusses the first item, that of preparing for commercialization. ERC`s formal commercialization program began in 1990 with the selection of the 2-MW Direct Fuel Cell power plant by the American Public Power Association (APPA) for promotion to the over 2000 municipal utilities comprising APPA`s segment of the utility sector. Since that beginning, the APPA core group expanded to become the Fuel Cell Commercialization Group (FCCG) which includes representation from all markets - utilities and other power generation equipment buyers.

  15. 76 FR 24832 - Airworthiness Directives; Airbus Model A330-201, -202, -203, -223, and -243 Airplanes, A330-300...

    Science.gov (United States)

    2011-05-03

    ...-201, -202, -203, - 223, and -243 Airplanes, A330-300 Series Airplanes, A340-200 Series Airplanes, and A340-300 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of... some rudders fitted on A330 and A340-200/-300 aeroplanes. An extended de-bonding, if not detected and...

  16. 76 FR 56680 - Airworthiness Directives; Airbus Model A330-200 and -300 Series Airplanes; Model A340-200 and...

    Science.gov (United States)

    2011-09-14

    ... Model A330-200 and -300 Series Airplanes; Model A340-200 and -300 Series Airplanes; Model A340-500 and -600 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed...: Vladimir Ulyanov, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA...

  17. 76 FR 42029 - Airworthiness Directives; Airbus Model A300 B4-600, B4-600R, and F4-600R Series Airplanes, and...

    Science.gov (United States)

    2011-07-18

    ... B4-600, B4-600R, and F4-600R Series Airplanes, and Model A300 C4-605R Variant F Airplanes (Collectively Called A300-600 Series Airplanes); and Model A310 Series Airplanes AGENCY: Federal Aviation...., Washington, DC. FOR FURTHER INFORMATION CONTACT: Dan Rodina, Aerospace Engineer, International Branch, ANM...

  18. 76 FR 39248 - Airworthiness Directives; Airbus Model A300 B4-600, B4-600R, and F4-600R Series Airplanes, and...

    Science.gov (United States)

    2011-07-06

    ... B4-600, B4-600R, and F4-600R Series Airplanes, and Model C4-605R Variant F Airplanes (Collectively Called A300-600 Series Airplanes); and Model A310 Series Airplanes AGENCY: Federal Aviation...., Washington, DC. FOR FURTHER INFORMATION CONTACT: Dan Rodina, Aerospace Engineer, International Branch, ANM...

  19. Determination of aerodynamic parameters of a fighter airplane from flight data at high angles of attack

    Science.gov (United States)

    Klein, V.; Batterson, J. G.; Abbasy, I.

    1983-01-01

    A procedure for the estimation of airplane model structure and parameters is applied to data from a modern fighter airplane operating within an angle of attack range of 5 to 60 deg. The paper briefly describes the airplane, flight and wind tunnel data available, and the estimation method. The results presented contain basic longitudinal characteristics of the airplane and the estimates of aerodynamic parameters in the yawing-moment equations. These estimates are obtained from small and large amplitude maneuvers. Because the latter set of data was not suitable for airplane identification, some of the large amplitude maneuvers were joined together and then partitioned into subsets according to the values of angle of attack. Each subset was then analyzed as a separate data set. Most of the estimated parameters and functions are in good agreement with the wind tunnel measurements. The estimated lateral parameters in the model equations also demonstrate good prediction capabilities.

  20. Radiated Emissions from a Remote-Controlled Airplane-Measured in a Reverberation Chamber

    Science.gov (United States)

    Ely, Jay J.; Koppen, Sandra V.; Nguyen, Truong X.; Dudley, Kenneth L.; Szatkowski, George N.; Quach, Cuong C.; Vazquez, Sixto L.; Mielnik, John J.; Hogge, Edward F.; Hill, Boyd L.; hide

    2011-01-01

    A full-vehicle, subscale all-electric model airplane was tested for radiated emissions, using a reverberation chamber. The mission of the NASA model airplane is to test in-flight airframe damage diagnosis and battery prognosis algorithms, and provide experimental data for other aviation safety research. Subscale model airplanes are economical experimental tools, but assembling their systems from hobbyist and low-cost components may lead to unforseen electromagnetic compatibility problems. This report provides a guide for accommodating the on-board radio systems, so that all model airplane systems may be operated during radiated emission testing. Radiated emission data are provided for on-board systems being operated separately and together, so that potential interferors can be isolated and mitigated. The report concludes with recommendations for EMI/EMC best practices for subscale model airplanes and airships used for research.