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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 501 - 520 of 802 results
  • Flammability Test of AlcoholBased Hand Sanitizer
    Flammability Test of Alcohol-Based Hand Sanitizer
    Cavage, William M.
    2010-08-01 | PDF
    Some concerns have been raised about the flammability characteristics of personal hand sanitizer, which is presently being used in lavatories on many commercial airlines to mitigate the spread of the H1N1 virus. Personal hand sanitizer is a fluid, which is generally composed of approximately 60% ethyl alcohol by volume, and comes in two primary for ...
  • Data Communications Segment 2 Airport Traffic Control Tower HumanintheLoop Simulation
    Data Communications Segment 2 Airport Traffic Control Tower Human-in-the-Loop Simulation
    Truitt, Todd R ;
    Muldoon, Robert
    2010-07-01 | PDF
    This technical report provides a brief literature review of previous research on air traffic control concepts relevant to the Data Communications (Data Comm) program and examines the use of digital-taxi (D-Taxi) clearances for departure aircraft under three levels of data link equipage (Voice Only vs. 40% Data Comm vs. 75% Data Comm). Sixteen curre ...
  • FullScale Tests on Rubblized Pavement Test Items at the National Airport Pavement Test Facility
    Full-Scale Tests on Rubblized Pavement Test Items at the National Airport Pavement Test Facility
    Garg, Navneet
    2010-05-01 | PDF
    Rubblization is defined as the process of fracturing existing concrete pavement in-place into smaller interconnected pieces. Rubblization breaks the slab action and minimizes or prevents the occurrence of reflective cracks in the asphalt concrete overlay. This is the first study conducted on the full-scale accelerated pavement testing of rubblized ...
  • Evaluation of RetroReflective Beads to Increase Airport Surface Marking Conspicuity
    Evaluation of Retro-Reflective Beads to Increase Airport Surface Marking Conspicuity
    Previti, Anthony J. ;
    Gallagher, Donald W.
    2010-05-01 | PDF
    Manufacturers have postulated that retro-reflective beads that have a higher index of refraction increase the conspicuity of paint markings and, thus, would aid in the prevention of runway incursions. The purpose of this project was to determine the adequacy of various types of retro-reflective beads that are used to increase the conspicuity of pai ...
  • Airborne Evaluation of RetroReflective Beads
    Airborne Evaluation of Retro-Reflective Beads
    Previti, Anthony J. ;
    Cyrus, Holly M.
    2010-04-01 | PDF
    This project was undertaken by the Federal Aviation Administration (FAA) Airport Safety Technology Research and Development Sub-Team as part of an effort to determine the relative conspicuity, from an aircraft on approach, of Type I and Type III retro-reflective beads. Retro-reflective beads are designed to redirect and return light back to its sou ...
  • Future En Route Workstation Study FEWS III HumanintheLoop Simulation of Air Traffic Controller Management of Advanced Aircraft Concepts
    Future En Route Workstation Study (FEWS III): Human-in-the-Loop Simulation of Air Traffic Controller Management of Advanced Aircraft Concepts
    Zingale, Carolina ;
    Willems, Ben
    2010-03-01 | PDF
    The Federal Aviation Administration (FAA) and the Joint Planning and Development Office have developed the Next Generation Air Transportation System, NextGen, in an effort to transform the existing air traffic system to manage anticipated increases of up to three times current traffic levels by 2025 (FAA, 2008b). In this third volume of the Future ...
  • Graphite Oxide Flame Retardants
    Graphite Oxide Flame Retardants
    Higginbotham, Amanda L. ;
    Lomeda, Jay
    2010-03-01 | PDF
    Thermoplastics and composites made from hydrocarbon polymers can improve the affordability, strength-to-weight ratio, and durability of manufactured products. Unfortunately, the use of these materials in aircraft and other vehicles is limited because of their inherent flammability. An alternative, lower-cost strategy is to develop environmentally b ...
  • Prediction of the Burning Rates of Charring Polymers
    Prediction of the Burning Rates of Charring Polymers
    Stoliarov, Stanislav I. ;
    Crowley, Sean
    2010-03-01 | PDF
    The processes that take place in the condensed phase of a burning polymer play an important role in the overall combustion. Quantitative understanding of these processes is critical for prediction of ignition and growth of fires. During the past decade, a significant effort has been made to develop mathematical models of polymer pyrolysis. In the c ...
  • Flammability of InService Aircraft Thermal Acoustic Insulation Blankets
    Flammability of In-Service Aircraft Thermal Acoustic Insulation Blankets
    Lyon, Richard E. ;
    Safronava, Natallia
    2010-02-01 | PDF
    Thermal acoustic insulation blankets are widely used in commercial aircraft to provide thermal insulation and acoustic damping. This report examines the burning effects on the thermal acoustic insulation blankets retrieved from the EVA Airways Flight BR67 fire event. On February 23, 2008, passengers disembarking from EVA Airways Flight BR67 reporte ...
  • LightEmitting Diode Taxiway Edge Light Photometric Evaluation
    Light-Emitting Diode Taxiway Edge Light Photometric Evaluation
    Lean, Doron ;
    Cyrus, Holly M.
    2010-01-01 | PDF
    The Federal Aviation Administration Airport Safety Technology Research and Development Subteam initiated a long-term study of light-emitting diode (LED) taxiway edge lights. The purpose of this study was to determine and evaluate the photometric performance, durability, and reliability of LED taxiway edge light fixtures. LED taxiway edge lights deg ...
  • Evaluation of Human Performance While Wearing Respirators
    Evaluation of Human Performance While Wearing Respirators
    Hah, Sehchang ;
    Yuditsky, Tanya
    2009-12-01 | PDF
    The goal of this study was to assess the feasibility of respirator use in Air Traffic Control and Technical Operations. We evaluated several models of Powered Air Purifying Respirators (PAPRs) and N95 respirators for usability, effects on human performance, and effects on the wearer’s well-being. We found that binoculars could not be used with any ...
  • Voice Over internet Protocol Speech Intelligibility Assessment
    Voice Over internet Protocol : Speech Intelligibility Assessment
    Friedman-Berg, Ferne ;
    Allendoerfer, Kenneth
    2009-12-01 | PDF
    In this study, we examined the speech intelligibility of five codecs and parameter settings to determine their suitability for Air Traffic Control use. These codecs (g711r64, g726r32, g729r8, g723r53, and g726r16) convert analog communications to digital communications. We used standard intelligibility tests − the Modified Rhyme Test (MRT) and the ...
  • Workstation and Workplace Ergonomics at Federal Aviation Administration Operations Control Centers Phase 1 Evaluation of Ergonomic Issues
    Workstation and Workplace Ergonomics at Federal Aviation Administration Operations Control Centers: Phase 1- Evaluation of Ergonomic Issues
    Ahlstrom, Vicki ;
    Sollenberger, Randy L
    2009-10-01 | PDF
    The purpose of this study was to collect data on current workplace ergonomic conditions at Federal Aviation Administration Operations Control Centers. Ergonomic issues and associated work-related musculoskeletal disorders can arise due to a combination of factors including environmental conditions, workstation design, frequency and duration of task ...
  • Modeling Wing Tank Flammability
    Modeling Wing Tank Flammability
    Dadia, Dhaval
    2009-10-01 | PDF
    An investigation into the fire safety of a wing fuel tank has been performed to aid in the effort to eliminate or reduce the possibility of a wing fuel tank explosion in a commercial aircraft. A computational model is built to predict the generation of flammable mixtures in the ullage of wing fuel tanks. The model predicts the flammability evolutio ...
  • Photoluminescent Material Evaluation
    Photoluminescent Material Evaluation
    Gallagher, Donald W. ;
    Cyrus, Holly M.
    2009-09-01 | PDF
    The fundamental principle of photoluminescent technology is the ability of the photoluminescent material to absorb and store ambient ultraviolet light energy from its surroundings and then emit the stored energy as visible light. Two particular photoluminescent pigments have been used in the development of marking systems: zinc sulfide and strontiu ...
  • Vaporization of JP8 Jet Fuel in a Simulated Aircraft Fuel Tank Under Varying Ambient Conditions
    Vaporization of JP-8 Jet Fuel in a Simulated Aircraft Fuel Tank Under Varying Ambient Conditions
    Ochs, Robert I.
    2009-08-01 | PDF
    This study has been performed to aid in the effort to minimize the possibility of a fuel tank explosion in a commercial aircraft. An understanding of the mechanisms behind fuel vaporization processes in an aircraft fuel tank is essential to developing accident prevention techniques. An experiment was designed to measure the conditions existing with ...
  • Towbarless Towing Vehicle Operations Evaluation of Braking Action and Vehicle Conspicuity
    Towbarless Towing Vehicle Operations - Evaluation of Braking Action and Vehicle Conspicuity
    Hayhoe, Gordon F. ;
    Patterson, James W.
    2009-08-01 | PDF
    General guidance on the operation of towbarless towing vehicles (TLTV) on airport operation areas is discussed with respect to braking during towing emergencies, painting, and lighting the TLTV and the aircraft being towed. Evaluations and recommendations are also given with regard to the topics discussed in the report. The braking evaluation was p ...
  • Runway Status Lights Takeoff Hold Lighting System Evaluation
    Runway Status Lights: Takeoff Hold Lighting System Evaluation
    Patterson, James W.
    2009-08-01 | PDF
    Takeoff hold lights (THL) are positioned along the runway centerline, and when illuminated, they are visible to an aircraft pilot at the beginning of the runway preparing for takeoff. Normally, these lights are off. A Runway Status Light (RWSL) System monitors the runway occupancy status and conveys this information to the pilots, ground vehicle op ...
  • Review of Aircraft SelfSpacing Concepts Implications for Controller Display Requirements
    Review of Aircraft Self-Spacing Concepts : Implications for Controller Display Requirements
    Zingale, Carolina ;
    Willems, Ben
    2009-07-01 | PDF
    This report summarizes the concepts and the simulations conducted on pilot self-spacing and self-separation between 2005 and 2007and focuses on the implications for air traffic control information needs and display enhancements. It follows a previous literature review on these concepts by McAnulty and Zingale (2005). In 2007, air traffic levels wer ...
  • Comparing the Tower Operations Digital Data System To Paper Flight Progress Strips in ZeroVisibility Operations
    Comparing the Tower Operations Digital Data System To Paper Flight Progress Strips in Zero-Visibility Operations
    Truitt, Todd R ;
    Muldoon, Robert
    2009-07-01 | PDF
    The current experiment used a high-fidelity, human-in-the-loop simulation to compare the Tower Operations Digital Data System (TODDS) to paper flight progress strips (FPSs) during zero-visibility Airport Traffic Control Tower operations. Sixteen current controllers participated in groups of two. Each group received touchscreen and TODDS training be ...
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