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FAA William J. Hughes Technical Center for Advanced Aerospace

rosaP Repository & Open Science Access Portal

Technical reports, Tech Notes, and articles that document the FAA’s applied research, engineering, testing and evaluation, and resulting scientific solutions addressing current and future air transportation challenges in collaboration with industry, academia, and other government partners. For more content, visit the FAA Technical Library https://www.faa.gov/about/office_org/headquarters_offices/ang/library/. Bookmark this collection:https://rosap.ntl.bts.gov/collection_faa_tl or https://doi.org/10.21949/1530830.

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Showing 741 - 760 of 802 results
  • Software Functional Description of Mass Weather Dissemination System Exploratory Engineering Model
    Software Functional Description of Mass Weather Dissemination System Exploratory Engineering Model
    Delemarre, Louis
    1982-02-01 | PDF
    This report describes the Mass Weather Dissemination System Exploratory Engineering Model software currently being evaluated in the Flight Service Station Engineering Laboratory. The object of this effort is to investigate, through development, test and evaluation, the application of digital technology to the dissemination of meteorological and aer ...
  • Very High Frequency VHF Multicoupler Tests
    Very High Frequency (VHF) Multicoupler Tests
    Rehmann, Albert J.
    1982-02-01 | PDF
    This report describes tests conducted on two commercially available very high frequency (VHF) multicouplers to determine if they could meet a set of proposed specifications. The multicouplers met all proposed specifications except the intermodulation distortion requirements.
  • Microwave Landing System Flare Subsystem Test
    Microwave Landing System Flare Subsystem Test
    Jezierski, Carl B.
    1981-10-01 | PDF
    Microwave Landing System (MLS) Flare subsystem performance data were collected on a specially instrumented Federal Aviation Administration (FAA) Technical Center aircraft. The airborne data were compared with a theodolite tracking system reference and error plots generated. Due to extensive 1ightning damage only two flight tests were performed. Fla ...
  • Flight Test of Very High Frequency VHF Communication Frequency Antenna Radiation Signal Levels From the Washington National Airport
    Flight Test of Very High Frequency (VHF) Communication Frequency Antenna Radiation Signal Levels From the Washington National Airport
    Sawtelle, Edward M.
    1981-10-01 | PDF
    The purpose of the test flight was to collect signal level data radiated from Very High Frequency communications antennas located at the Washington National Airport (DCA). The data was to provide information on the coverage at a range of 40 nautical miles (nmi) and at 8,000 feet mean sea level (m.s.l.) and all approaches and departures of the airpo ...
  • Modeling of Ceiling Fire Spread and Thermal Radiation
    Modeling of Ceiling Fire Spread and Thermal Radiation
    Alpert, R. L. ;
    Mathews, M. K.
    1981-10-01 | PDF
    The pressure modeling technique is used to study fire spread under five different ceiling materials and analytical and numerical techniques are used to compute thermal radiation to floor level from the resultant layer of hot gases near the ceiling. In the physical modeling part of the study, measurements are obtained at one atmosphere (full-scale) ...
  • Second Quarterly Data Report for Reliability and Maintainability Evaluation of the Basic Wide Microwave Landing System at Wallops Island Virginia
    Second Quarterly Data Report for Reliability and Maintainability Evaluation of the Basic Wide Microwave Landing System at Wallops Island, Virginia
    Plotka, Marvin S.
    1981-09-01 | PDF
    This is the second quarterly data report on the reliability and maintainability evaluation of the Basic Wide Microwave Landing System located at Wallops Island, Virginia. It covers the period August 1 through October 31, 1980. Chargeable failures are listed, and calculated reliability values are presented. System and subsystem mean time between fai ...
  • Active Beacon Collision Avoidance Logic Evaluation Volume II Collision Avoidance BCAS Threat Phase
    Active Beacon Collision Avoidance Logic Evaluation: Volume II, Collision Avoidance (BCAS) Threat Phase
    Adkins, A. ;
    Thomas, J.
    1981-09-01 | PDF
    The purpose of this project was to evaluate and refine the April 1979 version of the Beacon Collision Avoidance System (BCAS) logic prior to Active BCAS prototype flight testing. The April 1979 version of the BCAS logic added changes to support multiple aircraft conflict resolution, Conflict Indicator Register (CIR) interfacing and new surveillance ...
  • Data Identification Document for the Model 1 Package 2 Database of the Flight Service Automation System
    Data Identification Document for the Model 1, Package 2, Database of the Flight Service Automation System
    Brodie, William ;
    DiNofrio, John
    1981-09-01 | PDF
    This document 1S part: of an ongoing effort: in the development of a data base for the Flight: Service Automation System (FSAS). It identifies the files and data needed to assemble the data base for Model 1' Package 2, requirements as specified by Federal Aviation Administration (FAA)-E-2685.
  • Experimental Radar Beacon Transponder Test Plan
    Experimental Radar Beacon Transponder Test Plan
    Kenton, John
    1981-08-01 | PDF
    The Federal Aviation Administration (FAA) is currently engaged in the development of an Active Beacon Collision Avoidance System (BCAS) as a part of its Aircraft Separation Assurance (ASA) Program. Designed to operate in both controlled and noncontrolled airspace, BCAS performs its separation function through the active interrogation of the Air Tra ...
  • Interim Automatic Traffic Advisory and Resolution Service ATARS Hardware Timing Analysis
    Interim Automatic Traffic Advisory and Resolution Service (ATARS) Hardware Timing Analysis
    Resnick, Julius L.
    1981-07-20 | PDF
    The objective of Automatic Traffic Advisory and Resolution Service (ATARS) hardware timing analysis is to provide sufficient information on the execution time characteristics of ATARS to: (1) permit prospective contractors bidding on an ATARS request for proposals to realistically estimate the size of the system they are proposing, and (2) to provi ...
  • The Use of Groundspeed in a Wind Shear and the Flight Evaluation of a RadarAltimeterBased System for the Measurement of Groundspeed
    The Use of Groundspeed in a Wind Shear and the Flight Evaluation of a Radar-Altimeter-Based System for the Measurement of Groundspeed
    Lawrence, David
    1981-07-01 | PDF
    The use of groundspeed in combination with airspeed has been considered and shown to be an effective aid 1n the execution of an approach and landing 1n a heavy jet transport airplane. A flight dynamics analysis shows that the response of such aircraft to sudden changes 1n headwind 1S quite sluggish, requiring more than 100 seconds for equilibrium c ...
  • Effects of Different Distributions of Training Time on the Acquisition of Contact Flying Skills
    Effects of Different Distributions of Training Time on the Acquisition of Contact Flying Skills
    Shelnutt, J. B. ;
    Spears, W. D.
    1981-07-01 | PDF
    As costs rise in general aviation, many private pilots are forced to reduce the rates at which they fly, both during training and after certification, in order to spread out expenses. This report describes the results of the first phase of a two- and one-half-year study designed to study the impact on pilot performance of reductions in the rates at ...
  • National Icing Facilities Requirements Investigation
    National Icing Facilities Requirements Investigation
    Taylor, F. R. ;
    Adams, R. J.
    1981-06-01 | PDF
    An analysis of National Icing Facilities requirements was performed at the request of the Federal Aviation Administration. This effort consisted of a five-month investigation to determine the scope and character of current and future icing facilities needs. This investigation included current aircraft needs as well as facilities that might be requi ...
  • Spectrums of Simultaneous Speech Data and Tone Control Functions on Federal Aviation Administration Telephone Lines
    Spectrums of Simultaneous Speech, Data, and Tone Control Functions on Federal Aviation Administration Telephone Lines
    Rehmann, Albert J.
    1981-06-01 | PDF
    In support of the Airway Facilities Service's program to provide Remote Monitoring Systems (RMS) at Remote Communications Air-Ground (RCAG) sites, the Technical Center was tasked to determine the necessary characteristics of external filters, modems, etc., which would enable RMS digital data transmission over existing site-to-center telephone lines ...
  • Crosstalk Levels of Speech Plus Data in Remote Communications AirGround RCAG
    Crosstalk Levels of Speech Plus Data in Remote Communications Air-Ground (RCAG)
    Rehmann, Albert J.
    1981-06-01 | PDF
    The Federal Aviation Administration (FAA) 1s proposing the addition of a digital data channel to the existing telephone lines which connect a1r route traffic control centers (ARTCCts) with remote communications air-ground (RCAG) sites to economically transfer Remote Monitoring System (RMS) parameters and control data between the ARTCC's and the sit ...
  • Discrete Address Beacon System DABS Software System Reliability Modeling and Prediction
    Discrete Address Beacon System (DABS) Software System Reliability Modeling and Prediction
    Evaluation Associates, Inc
    1981-06-01 | PDF
    This report contains the results of a pi lot study accomplished to demonstrate the ability to determine the magnitude of software reliability encountered in large-scale computer-based equipment. The engineering model of the Discrete Address Beacon System (DABS) currently undergoing development was used as the subject. Based on software failure and ...
  • Degradation and Characterization of Antimisting Kerosene AMK
    Degradation and Characterization of Antimisting Kerosene (AMK)
    Mannheimer, R. J.
    1981-06-01 | PDF
    The effect of elongational flow on polymer degradation has been studied by forcing AMK through metal screens and packed tubes at high velocities. Effects of screen size, bead size, and tube length on degrader power have been determined. At a specific power of 15 kWs/l (30 HP at 10,000 lb/hr), AMK exhibits filtration and ignition properties similar ...
  • An Assessment of the Use of Antimisting Fuel in Turbofan Engines
    An Assessment of the Use of Antimisting Fuel in Turbofan Engines
    Fiorentino, A. ;
    De Saro, R.
    1981-06-01 | PDF
    An evaluation was made on the effects of using antimisting kerosene (AMK) on the performance of the components from the fuel system and the combustor of a current in-service JT8D aircraft engine. The objectives were to identify problems associated with using antimisting kerosene and to determine the extent of shearing or degradation required to all ...
  • Math Model Study of Glide Slope Sites for Runway 30L Lambert St Louis International Airport St Louis Missouri
    Math Model Study of Glide Slope Sites for Runway 30L Lambert - St. Louis International Airport, St. Louis, Missouri
    Walls, John
    1981-06-01 | PDF
    The purpose of this study was to provide computer modeled glide slope performance data for several candidate locations of the ILS glide slope which will service Runway 30L at Lambert-St. Louis International Airport, St. Louis, Missouri.
  • Project Plan for Electronic Tabular Display Subsystem ETABS Test and Evaluation
    Project Plan for Electronic Tabular Display Subsystem (ETABS) Test and Evaluation
    Bonello, Arthur H. ;
    Crimbring, William R.
    1981-05-01 | PDF
    The Federal Aviation Administration (FAA} Technical Center will provide technical support to the Systems Research and Development Service (SRDS) Program Manager for Electronic Tabular Display Subsystem (ETABS) procurement. installation. and integration; conduct engineering acceptance tests; and prepare an operational evaluation of a prototype en ro ...
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