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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 161 - 180 of 1051 results
  • The Influence of Strain Rate Temperature Effects and Instabilities in Failure Modeling for Metal Alloys
    The Influence of Strain Rate, Temperature Effects, and Instabilities in Failure Modeling for Metal Alloys
    Dolci, Stefano
    ORCID ICON IMG
    2022-06-01 | PDF
    To improve the survivability of structures it is important to understand the dynamic failure behavior under impact loading. Impact tests have revealed that mode of failure on metal superalloys thick plate at high-speed impact is what is known as Adiabatic shear band (ASB). The tabulated J-C material model is the current state of the art for FEM of ...
  • Rotorcraft Strike Avoidance System Using Airborne Avian Radar
    Rotorcraft Strike Avoidance System Using Airborne Avian Radar
    Piesinger, Greg ;
    Vandenbout, Dave
    2022-06-01 | PDF
    A research and development (R&D) proof-of-concept airborne avian radar to detect birds and other targets ahead of a rotorcraft was designed, constructed, and ground tested. The radar was designed to provide collision warning out to 1500 meters day or night in haze, fog, or rain. Its principal of operation was to use a single forward-looking antenna ...
  • Effects of New Jet Fuel Exposure on Aerospace Composites Phase 1 Final Report
    Effects of New Jet Fuel Exposure on Aerospace Composites – Phase 1 Final Report
    Harich, Naoufal ;
    Bassou, Rania
    2022-06-01 | PDF
    Composite materials are increasingly used in the aerospace industry as an alternative to metals, primarily due to their high specific mechanical properties (stiffness, strength, etc.), and tailorability. These materials can be subjected to different types of aeronautical fluids during their lifetime. These composites’ exposure to organic fluids suc ...
  • Evaluation of Lithium Battery Thermal Runaway Vent Gas Combustion
    Evaluation of Lithium Battery Thermal Runaway Vent Gas Combustion
    Karp, Matthew ;
    Sica, Joseph
    2022-06-01 | PDF
    This research seeks to support the United Nations (UN) Subcommittee of Experts on the Transport of Dangerous Goods (SCOE TDG) establish a more performance-based approach to classifying the various types of lithium-ion batteries for transportation. A proposed standardized test method was used to assess the combustion hazard from a lithium-ion batter ...
  • Visual 3D Weather Display for Preflight Planning
    Visual 3D Weather Display for Preflight Planning
    Krimins, Ethan
    2022-05-17 | PDF
    Most General Aviation (GA) pilots cannot accurately measure visibility in flight and therefore adhering to FAA regulations for Visual Flight Rules (e.g., 3 miles visibility) is often unachievable and unrealistic. This difficulty is not just technological, pilots without meteorological expertise struggle in pre-flight planning to interpret complex, ...
  • T800F3900 Composite Stacked Ply Laminate Testing and Modeling Using MAT_213
    T800-F3900 Composite Stacked Ply Laminate Testing and Modeling Using MAT_213
    Holt, Nathan ;
    Khaled, Bilal
    2022-05-01 | PDF
    Simulating uncontained engine fragment impact to composite aircraft structures requires material models, which can accurately account for the deformation, damage, and failure experienced during these highly dynamic events. The FAA Aircraft Catastrophic Failure Prevention Program sponsored the development of a new material model known as MAT_213 to ...
  • Negative Transfer of Training of Suboptimal Degrees of Variability in the Training of Procedures
    Negative Transfer of Training of Suboptimal Degrees of Variability in the Training of Procedures
    Landman, A. ;
    Pennings, H
    2022-05-01 | PDF
    Many professions require procedural skills to perform routine tasks, as well as adaptive skills to deal with unexpected situations. Whereas routine skills are acquired by repetitive practice of the same task, adaptive skills develop with variability of practice. We hypothesize that negative transfer may occur when routine skills are trained with (t ...
  • Airport Pavement Surface Treatment A Literature Review
    Airport Pavement Surface Treatment: A Literature Review
    Dzwilewski, Peter-Paul ;
    Espinoza, Arturo
    2022-05-01 | PDF
    The Federal Aviation Administration Airport Technology Research and Development (ATR) Branch conducted a study of airport pavement surface treatments to identify evidence-based best practices and guidance for selecting surface treatments as the appropriate treatment strategy for different airfield pavement locations. The study will be used to furth ...
  • Offshore Precipitation Capability User Evaluation Results
    Offshore Precipitation Capability User Evaluation Results
    United States. Department of Transportation. Federal Aviation Administration. Aviation Weather Demonstration and Evaluation (AWDE)  ...
    2022-05-01 | PDF
    The Aviation Weather Division, ANG-C61, sponsored the development and ongoing research of the Offshore Precipitation Capability (OPC). OPC fuses satellite imagery, lightning data, and weather models to estimate the location and intensity of precipitation in areas where radar is not available. OPC is currently available to support situation awarenes ...
  • Investigation of Certification Considerations for Distributed Electric Propulsion DEP Aircraft
    Investigation of Certification Considerations for Distributed Electric Propulsion (DEP) Aircraft
    McKillip, R. Jr. ;
    Wachspress, D
    2022-05-01 | PDF
    Efforts from the first year of a multi-year investigation examining the use of estimation of both remaining vehicle control power margins and external environmental disturbances for distributed electric propulsion (DEP) vehicles as a contributor for vehicle certification are described. This study combines simulation of DEP aircraft with experimenta ...
  • Runway Incursion Mitigation Fiscal Year 2021 Annual Summary Report
    Runway Incursion Mitigation Fiscal Year 2021 Annual Summary Report
    Vitagliano, Lauren ;
    Debban, Steven
    2022-05-01 | 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
    Aircraft Air Quality and Bleed Air Contamination Detection
    Jones, Byron W
    ORCID ICON IMG
    2022-05-01 | PDF
    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. Reports from major aircraft cabin air studies were reviewed to identify the range of constituents that can be expected in cabin air, especially ...
  • Aircraft Air Quality and Bleed Air Contamination Detection [supporting datasets]
    Jones, Byron W
    ORCID ICON IMG
    2022-04-30 | 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. Reports from major aircraft cabin air studies were reviewed to identify the range of constituents that can be expected in cabin air, especially ...
    Dataset Supporting Files
  • Progressive Damage Growth of Composites Under VariableAmplitude Fatigue Testing
    Progressive Damage Growth of Composites Under Variable-Amplitude Fatigue Testing
    Seneviratne, Waruna ;
    Tomblin, John
    2022-04-01 | PDF
    Anisotropic heterogeneous characteristics and changes in failure modes over the fatigue life as well as multiple failure mechanisms that interact with each other make it challenging to predict damage growth in composite structures. Therefore, overly conservative assumptions (e.g. load and life factors based on lower-level building block testing) ar ...
  • Negative Transfer of Training Simulator Study Into Effects of Going Beyond Alarms During Stall Recovery Training
    Negative Transfer of Training: Simulator Study Into Effects of Going Beyond Alarms During Stall Recovery Training
    Landman, A. ;
    Mol, D
    2022-04-01 | PDF
    An often-used practice in pilot simulator training is to let pilots respond to a situation that has gone wrong. This may require the trainee to postpone their intervention, so that they can experience the cues and sensations signaling the critical situation, and have an opportunity to practice the appropriate response. However, some aviation-traini ...
  • Reflective Crack Propagation ModelPart 2 Mode II
    Reflective Crack Propagation Model—Part 2: Mode II
    Tuleubekov, Kairat
    2022-03-01 | PDF
    The Federal Aviation Administration (FAA) developed a two-dimensional model of its full-scale, indoor, reflection cracking test equipment at the National Airport Pavement Test Facility (NAPTF), William J. Hughes Technical Center, Atlantic City International Airport, NJ. The analytical model represents two jointed concrete slabs and a continuous hot ...
  • FAA Composite Structural Engineering Technology Safety Awareness Course
    FAA Composite Structural Engineering Technology Safety Awareness Course
    Seaton, Charles ;
    Ilcewicz, Larry
    2022-03-01 | PDF
    This report documents the development of a Federal Aviation Administration (FAA) safety awareness course on composite structural engineering technology (CSET). The course is intended to promote awareness of structural engineering issues and principles for practicing aerospace engineers, as well as those relatively new to the industry, while highlig ...
  • Develop a Method of Compliance to Support Certification of Advanced Flight Controls in General Aviation and Hybrid Vehicles
    Develop a Method of Compliance to Support Certification of Advanced Flight Controls in General Aviation and Hybrid Vehicles
    Lotterio, Marco
    2022-02-01 | PDF
    With the current development of Urban Air Mobility (UAM) and hybrid vehicles, fly-by-wire (FBW) flight controls are expected to be the standard for this new class of aircraft and, eventually, for an increasing number of aircraft certifiable under 14 CFR Part 23 regulations. The certification process must directly address the characteristics of FBW ...
  • Study of Unitized Regenerative Fuel Cell Systems for Aircraft Applications
    Study of Unitized Regenerative Fuel Cell Systems for Aircraft Applications
    Utz, Robert C
    2022-01-01 | PDF
    Unitized regenerative fuel cells (URFCs) have been explored as potential high energy density power systems for aerial and space applications due to their potential to provide multiple functions with a single set of stack hardware. System designers and researchers have developed demonstration-scale URFCs using low temperature proton exchange membran ...
  • Evaluation of Lithium Battery Thermal Runaway Propagation
    Evaluation of Lithium Battery Thermal Runaway Propagation
    Maloney, Thomas
    2022-01-01 | PDF
    Although the UN classifies lithium batteries as dangerous goods, current UN numbers for lithium batteries do not indicate what level of hazard each individual shipment may pose. Lithium batteries can exhibit varied temperature rise and propagation characteristics when heated to thermal runaway. Therefore, This study was conducted to characterize th ...
161 - 180 / 1051