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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 61 - 80 of 727 results
  • DARWIN Roadmap for Cold Dwell Fatigue
    DARWIN® Roadmap for Cold Dwell Fatigue
    Sobotka, James C ;
    Enright, Michael P
    2024-06-01 | PDF
    Cold dwell fatigue (CDF) is a time-dependent process in near-alpha titanium alloys at temperatures below 300°C that involves metal degradation in the presence of creep to produce cracking on low-energy fracture facets in preferentially oriented, hard-alpha grains. It can cause significant reductions in fatigue life, and experience has shown that it ...
  • Measuring the Fire Growth Potential of Combustible Solids Using a Cone Calorimeter Report
    Measuring the Fire Growth Potential of Combustible Solids Using a Cone Calorimeter [Report]
    Lyon, Richard E.
    2024-05-01 | PDF
    The fire growth rate of interior linings, furnishings, and construction materials is measured in full-scale fire tests such as the ASTM E84 Steiner Tunnel, the ISO 9705 room fire, and a passenger aircraft cabin as the flame spread rate, time-to-flashover, or time to incapacitation, respectively. The results are used to indicate the level of passive ...
  • State of the Industry Resin Infusion A Literature Review
    State of the Industry – Resin Infusion: A Literature Review
    Huberty, Wayne ;
    Roberson, Matthew
    2024-05-01 | PDF
    Resin infusion processes, both resin transfer molding (RTM) and its variations, such as vacuum assisted resin transfer molding (VARTM), are poised to be more heavily adopted in transport aerospace applications due to several major advantages. This report investigated industrial applications of resin infusion and provides a general overview of many ...
  • Runway Incursion Mitigation Fiscal Year 2023 Annual Summary Report
    Runway Incursion Mitigation Fiscal Year 2023 Annual Summary Report
    Vitagliano, Lauren ;
    Debban, Steven
    2024-05-01 | PDF
    In fiscal year (FY) 2012, the Federal Aviation Administration (FAA) Office of Airports (ARP) initiated a research study to identify and geographically locate areas at airports with nonstandard taxiway geometry. This research was advanced because an earlier study (Legarreta, 2012) had shown nonstandard taxiway geometries to be associated with a high ...
  • Aircraft Air Quality and Bleed Air Contamination Detection: Engine Stand Tests, Sensor Technologies and Chemical Sampling (Phase 2, Volume 1) [supporting dataset]
    Fox, Richard B ;
    Jones, Byron W
    2024-04-18 | ZIP
    The purpose of this project was to provide a data-driven process to identify sensing technology with good potential for detecting bleed air contamination from engine oil, hydraulic fluid, or deicing fluid. An on-wing test was conducted in February 2022. A test on an engine test bed was conducted in May 2022. Sensors and instruments were identified, ...
    Dataset Supporting Files
  • Experimental Study of the Characteristics of a Hydrogen Flame from a Small Leak
    Experimental Study of the Characteristics of a Hydrogen Flame from a Small Leak
    Kurtanidze, John I
    2024-04-01 | PDF
    With a rising interest in hydrogen-fueled aircraft comes many design and safety concerns. There are many problems to be solved and safety standards and precautions established if aircrafts are going to be equipped with hydrogen. To that end, the objective of this project is to understand the fundamental characteristics of hydrogen flames. More spec ...
  • Integrated Propulsion and Controls for Rotorcraft Phase 2
    Integrated Propulsion and Controls for Rotorcraft – Phase 2
    Collins, Kyle B ;
    Anderson, Richard P
    2024-04-01 | PDF
    This technical report documents research conducted by Embry-Riddle Aeronautical University’s Eagle Flight Research Center team in Phase 2 of the Integrated Propulsion and Controls for Rotorcraft project. The purpose of this research was to build on the progress made during Phase 1 of the project. This involved developing a hardware-validated flight ...
  • Detection of Signatures from Internal Contaminant Sources Using Intelligent Algorithms
    Detection of Signatures from Internal Contaminant Sources Using Intelligent Algorithms
    Anthrathodiyil, Saleel
    2024-04-01 | PDF
    Electrical odors and smoke incidents in aviation have become a pressing concern, with over half of the detector activations resulting in false alarms, leading to uncertainties for flight crews. The escalating costs of diversions and growing awareness of associated health risks underscore the need for more reliable detection and discrimination from ...
  • Investigating the Potential to Use Phase Change Materials to Store Heat in Concrete Pavement to Reduce the Need for AntiIcing
    Investigating the Potential to Use Phase Change Materials to Store Heat in Concrete Pavement to Reduce the Need for Anti-Icing
    Farnam, Yaghoob ;
    Esmaeeli, Hadi S.
    2024-03-01 | PDF
    This report examines the potential use of phase change materials (PCMs) in airfield concrete pavements to store heat, which can be used to reduce ice formation and snow accumulation on the surface of the concrete pavement. This work mainly attempts to (1) determine the most beneficial properties of the PCM-concrete composite, (2) determine which PC ...
  • Handling Qualities Test Guide for Powered Lift VTOL Capable Aircraft with Indirect Flight Controls and Operating in Day Time Visual Flight Rules
    Handling Qualities Test Guide for Powered Lift VTOL Capable Aircraft with Indirect Flight Controls and Operating in Day Time Visual Flight Rules
    Klyde, David ;
    Mitchell, David
    2024-03-01 | PDF
    Decades ago, the U.S. Army introduced an Aeronautical Design Standard that defined Handling Qualities Requirements for Military Rotorcraft, ADS-33E-PRF in its most recent incarnation and now superseded by MIL-DTL-32742(AR), which introduced a mission-oriented approach that featured a catalog of flight test maneuvers (FTMs) or mission task elements ...
  • Evaluation of Unmanned Aircraft Systems for Live Monitoring to Enhance Situational Awareness During an Aircraft Rescue and Firefighting Response
    Evaluation of Unmanned Aircraft Systems for Live Monitoring to Enhance Situational Awareness During an Aircraft Rescue and Firefighting Response
    Sheairs, Jonathan ;
    Canter, Garrison
    2024-03-01 | PDF
    The Federal Aviation Administration (FAA) Airport Technology Research and Development Branch conducted a research effort to explore the use of small unmanned aircraft systems (UASs) to improve the situational awareness and effectiveness of aircraft rescue and firefighting (ARFF) personnel when monitoring the response to an ongoing ARFF accident/inc ...
  • OEM Summary Report on the Effects of Disinfectants on Aircraft Flight Deck Materials
    OEM Summary Report on the Effects of Disinfectants on Aircraft Flight Deck Materials
    van Bergeijk, Laura
    2024-03-01 | PDF
    Due to the COVID-19 worldwide pandemic, aircraft owners and operators may find it necessary to more frequently and thoroughly disinfect airplanes. The increased use of disinfectants on aircraft materials leads to the possibility of material degradation or negative impacts on equipment performance. This report summarizes disinfection testing perform ...
  • Global Impacts of Aviation on Air Quality Evaluated at High Resolution
    Global Impacts of Aviation on Air Quality Evaluated at High Resolution
    Eastham, Sebastian D ;
    Chossière, Guillaume P
    2024-02-01 | PDF
    Aviation emissions cause global changes in air quality which have been estimated to result in ~58 000 premature mortalities per year, but this number varies by an order of magnitude between studies. The causes of this uncertainty include differences in the assessment of ozone exposure impacts and in how air quality changes are simulated, as well as ...
    Supporting Files
  • Automatic Continuous Thrust Control for Supersonic Transport Takeoff Noise Reduction
    Automatic Continuous Thrust Control for Supersonic Transport Takeoff Noise Reduction
    Voet, Laurens J. A. ;
    Prashanth, Prakash
    2024-02-01 | PDF
    Advanced takeoff trajectories are proposed for supersonic transport noise reduction by capitalizing on excess engine thrust and improved aerodynamic efficiency at higher takeoff speeds. These novel trajectories use i) automatic continuous control of thrust, ii) increased takeoff speed, and iii) reduced cut-back altitude, compared to conventional pi ...
  • Adapting the FAAHFSTD010A Standard Color Palette to Daytime Illumination
    Adapting the FAA-HF-STD-010A Standard Color Palette to Daytime Illumination
    Post, David L. ;
    Racine, Nicole
    2024-02-01 | PDF
    This project demonstrated that the color palette specified in FAA-HF-STD-010A (2020) can be used unaltered in air traffic control (ATC) towers during bright daytime conditions. The FAA palette introduced standard colors for coding ATC displays. It was developed to accommodate controllers who have mild-to-moderate color-vision deficiencies without c ...
  • PostSmall Flame Forensic Analysis of Aerospace Composites
    Post-Small Flame Forensic Analysis of Aerospace Composites
    Madabhushi, Abhijith ;
    Boushab, Dounia
    2024-01-01 | PDF
    Fire can dramatically alter the exposed surfaces of composite aircraft structures in ways that inhibit forensic analysis. The char, soot, and several other fire by-products often mask relevant aspects of the structural damage morphology, impeding identification of the underlying failure mechanisms of composite materials. In this report, the effects ...
  • Human Factors Evaluation of Large Displays in the Air Traffic Control Environment
    Human Factors Evaluation of Large Displays in the Air Traffic Control Environment
    Woroch, Brion ;
    Zingale, Carolina
    2024-01-01 | PDF
    The Federal Aviation Administration (FAA) deployment of 43-inch en route air traffic control displays resulted in unexpected issues (e.g., headaches, nausea) for some air traffic controllers. We conducted this project to investigate the reasons for these problems to provide information to FAA Air Traffic Control (ATC) acquisition programs to guide ...
  • Speech Intelligibility Assessment for an Unmanned Aircraft System Voice Test Bed
    Speech Intelligibility Assessment for an Unmanned Aircraft System Voice Test Bed
    Konkel, Alex
    2024-01-01 | PDF
    Unmanned Aircraft System (UAS) operations are rapidly increasing in the National Airspace System (NAS). Since no pilot is on board the aircraft, reliable communications are especially important for UAS. In the near future, it will be highly desirable for UAS to be able to communicate with air traffic control (ATC) via typical radio frequencies as w ...
  • An Evaluation of the Flammability of 3D Printed Part Parameters Using the Vertical Bunsen Burner Test Method
    An Evaluation of the Flammability of 3D Printed Part Parameters Using the Vertical Bunsen Burner Test Method
    Keslar, Daniel ;
    Rehn, Steven
    2023-12-01 | PDF
    Additive manufacturing (AM), commonly referred to as three-dimensional (3D) printing, is a modern manufacturing technology that can be applied within many different areas of the aerospace industry due to its ability to produce light and durable parts with complex geometries. Aircraft manufacturers and airlines have expressed interest in the use of ...
  • Evaluation of Unmanned Aircraft Systems for Aircraft Accident and Incident Scene Documentation
    Evaluation of Unmanned Aircraft Systems for Aircraft Accident and Incident Scene Documentation
    Canter, Garrison ;
    Sheairs, Jonathan
    2023-12-01 | PDF
    The Federal Aviation Administration (FAA) Airport Technology Research and Development Branch conducted a research effort to explore the use of unmanned aircraft systems (UASs) for documenting aircraft accident and incident scenes at airports. The objectives of this research effort were to assess the benefits and limitations of UAS for this applicat ...
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