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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 101 - 120 of 603 results
  • Probabilistic Integrity and Risk Assessment of Turbine Engines Phase II
    Probabilistic Integrity and Risk Assessment of Turbine Engines, Phase II
    McClung, R. Craig ;
    Enright, Michael P
    2023-06-01 | PDF
    This grant supported the efforts of the Federal Aviation Administration (FAA) to develop an enhanced life management process, based on probabilistic damage tolerance principles, to address the threat of material or manufacturing anomalies in high-energy rotating components of aircraft engines. Major research products included formal verification an ...
  • Development and Evaluation of Mission Task Elements for Certification of Aircraft with NonConventional Control Interfaces
    Development and Evaluation of Mission Task Elements for Certification of Aircraft with Non-Conventional Control Interfaces
    Hoffler, Keith D ;
    Duerksen, Noel
    2023-06-01 | PDF
    Electrification of aircraft is resulting in configurations that had not been possible. These configurations use fly-by-wire flight controls and introduce novel control concepts that do not map back to traditional mechanical flight controls. The control concepts also do not map to existing Federal Aviation Administration (FAA) certification requirem ...
  • Review of Current State of Artificial IntelligenceMachine Learning and Other Advanced Techniques Related to AirtoAir Collision Risk Models CRM in the Terminal Airspace
    Review of Current State of Artificial Intelligence/Machine Learning and Other Advanced Techniques Related to Air-to-Air Collision Risk Models (CRM) in the Terminal Airspace
    Sherry, Lance ;
    Shortle, John
    2023-05-01 | PDF
    Collision Risk Models (CRM) are used by regulatory safety agencies to determine the safe separation minima and monitor the air-to-air collision risk level of an airspace. CRMs estimate the expected number of aircraft collisions and "total" risk for a given air traffic concept-of-operation (e.g., parallel approaches). The fidelity of the models, and ...
  • Assessment of Dynamic Modulus Testing of Airfield Asphalt Mixes Using SmallScale Test Specimens Technical Note
    Assessment of Dynamic Modulus Testing of Airfield Asphalt Mixes Using Small-Scale Test Specimens [Technical Note]
    Alvarez, Dario Batioja
    2023-05-01 | PDF
    Dynamic modulus is a fundamental property of viscoelastic materials and is typically used as an indicator of mix performance and input for the structural design of flexible pavements. Dynamic modulus can be measured in the laboratory using the Asphalt Mixture Performance Tester (AMPT) using the standard-size test specimen geometry (100-mm diameter ...
  • Foreign Object Debris Detection System CostBenefit Analysis
    Foreign Object Debris Detection System Cost-Benefit Analysis
    Hilburn, Brian G. ;
    Pesmen, B S
    2023-05-01 | PDF
    Foreign object debris (FOD) poses significant safety and financial threats to aviation. Estimates of the annual global costs of FOD range up to $22.7 billion in current United States dollars. The Federal Aviation Administration (FAA) recognizes that airport FOD detection systems can help reduce FOD risks. The FAA Airport Technology Research and Dev ...
  • Flight SimulationDriven Research into Simplified Vehicle Operations for Urban Air Mobility
    Flight Simulation-Driven Research into Simplified Vehicle Operations for Urban Air Mobility
    Chakraborty, I ;
    Comer, A.M.
    2023-05-01 | PDF
    The goal of this project was to study the Simplified Vehicle Operations (SVO) paradigm for vertical takeoff and landing (VTOL) urban air mobility (UAM) aircraft through piloted simulations in two fixed-base flight simulators located at the Vehicle Systems, Dynamics, and Design Laboratory (VSDDL), part of the Department of Aerospace Engineering at A ...
  • Assessment of Small Unmanned Aircraft Systems for Pavement Inspections
    Assessment of Small Unmanned Aircraft Systems for Pavement Inspections
    Valecha, Drishti ;
    Hall, David
    2023-05-01 | PDF
    Pavement inspections play an integral role in ensuring airport safety. The FAA Airport Technology Research and Development (ATR) branch performed research to assess the integration of small Unmanned Aircraft Systems (sUAS) into an airport’s Pavement Management Program (PMP). To conduct sUAS-based pavement inspections, the research team tested acros ...
  • InService Performance of Airport Flexible Pavements Constructed Following State Specifications for Highway Pavement Materials
    In-Service Performance of Airport Flexible Pavements Constructed Following State Specifications for Highway Pavement Materials
    West, R C ;
    Rodezno, M C
    2023-04-01 | PDF
    The Federal Aviation Administration (FAA) Reauthorization Act of 2018, Section 136 requires the FAA to allow the use of state highway specifications for airfield pavement construction at non-primary airports serving aircraft with a gross weight less than 60,000 lb if requested by the state. To confirm that state highway specifications provide an ac ...
  • Runway Incursion Mitigation Fiscal Year 2022 Annual Summary Report
    Runway Incursion Mitigation Fiscal Year 2022 Annual Summary Report
    Vitagliano, Lauren ;
    Debban, Steven
    2023-04-01 | 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 ...
  • The Contributions of Human Operators to Safety and Risk Mitigation Implications for Crew Complements and AutomationAutonomy Levels in Commercial Transport Operations
    The Contributions of Human Operators to Safety and Risk Mitigation: Implications for Crew Complements and Automation/Autonomy Levels in Commercial Transport Operations
    Sarter, Nadine ;
    Panesar, Karanvir
    2023-04-01 | PDF
    Advances in aviation technology and changes to operating procedures over the past few decades have contributed significantly to the remarkable level of safety in commercial aviation. Human pilots still continue to play a vital role in risk mitigation. The goal of this project was to develop a better understanding of the safety contributions made by ...
  • Geothermal System for Airport Pavement Snowmelt and Terminal Cooling
    Geothermal System for Airport Pavement Snowmelt and Terminal Cooling
    Ziegler, William ;
    Nixon, Chad
    2023-04-01 | PDF
    In 2008, a team of undergraduate students from Binghamton University-State University of New York entered the 2008–2009 Federal Aviation Administration (FAA) Design Competition for Universities and were awarded first place in the competition for their proposal, Geothermal Snowmelt System for Airport Pavements. The design was so well-received that t ...
  • Assessing the Use of Machine Learning to Find the WorstCase Execution Time of Avionics Software
    Assessing the Use of Machine Learning to Find the Worst-Case Execution Time of Avionics Software
    Andersson, Bjorn ;
    de Niz, Dionisio
    2023-04-01 | PDF
    Many parts in aircraft today rely on software that interacts with its physical environment. Typically, this interaction involves taking sensor readings, sending actuation commands, reading commands from humans, and presenting information to humans. These interactions require that the software deliver results at the right time,as argued in the guid ...
  • Effects of UltravioletC Germicidal Irradiation on Aircraft Cabin Interior Materials
    Effects of Ultraviolet-C Germicidal Irradiation on Aircraft Cabin Interior Materials
    Ravi, Aswini Kona ;
    Bhasin, Akhil
    2023-04-01 | PDF
    As a result of the coronavirus disease 2019 (COVID-19) public health emergency, aircraft owners and operators may find it necessary to increase the frequency with which they disinfect aircraft interiors. The disinfectant procedures included conventional chemical liquid disinfectants and Ultraviolet-C (UV-C) germicidal irradiation. In the first two ...
  • Advanced Construction Techniques for Heated Pavement Systems
    Advanced Construction Techniques for Heated Pavement Systems
    Abdualla, Hesham ;
    Ceylan, Halil
    2023-03-01 | PDF
    Ice and snow accumulations on paved surfaces in airports have the potential to cause flight delays and/or cancellations, pavement deterioration, and safety concerns. In recent years, hydronic and/or electrically conductive concrete (ECON) heated pavement systems (HPS) are receiving attention for mitigating problems associated with the presence of i ...
  • A State of Charge Analysis of Lithiumion Cells Shipped via Air
    A State of Charge Analysis of Lithium-ion Cells Shipped via Air
    Keslar, Daniel
    2023-03-01 | PDF
    A thermal event involving a package containing lithium-ion pouch cells occurred within a sorting facility of an all-cargo airline in December 2022. This package had been previously shipped via air and was being handled for delivery to its next destination. Following the incident, the package was sent to the William J. Hughes Technical Center for fu ...
  • Evaluation of Airport Pavement Designs for Seasonal Frost and Permafrost Conditions
    Evaluation of Airport Pavement Designs for Seasonal Frost and Permafrost Conditions
    Ashtiani, Ali Z ;
    Parsons, Timothy (Tim)
    2023-03-01 | PDF
    In recent years, the Federal Aviation Administration (FAA) Alaskan Region reported performance issues with some flexible airport pavements. The issues were attributed to changes in the thermal regime of the permafrost layers due to a warming trend, but the poor pavement performance could have been exacerbated or caused by factors such as improper d ...
  • Prioritization Methodology for Resin Infusion Research
    Prioritization Methodology for Resin Infusion Research
    Huberty, Wayne
    2023-02-15 | PDF
    This work is the first academic application describing the prioritization methodology for resin infusion research using the New Product Blueprinting (NPB) process developed by the AIM Institute. It is intended to be read in conjunction with DOT/FAA/TC-23/2, Resin Infusion – State of the Industry to fully understand the benefits, shortcomings, and n ...
  • Rotorcraft Wire Strike Prevention and Protection Wire Database Creation Sensor Package Design Wire Cutter Modeling Data Fusion and Helicopter Operators Inputs
    Rotorcraft Wire Strike Prevention and Protection: Wire Database Creation, Sensor Package Design, Wire Cutter Modeling, Data Fusion, and Helicopter Operators’ Inputs
    Achour, Gabriel ;
    Harris, Caleb
    2023-02-01 | PDF
    Wire strikes have been one of the most common sources of helicopter accidents in the past seven years. The sizes of poles and wires make it difficult for rotorcraft pilots to see them in-flight. This motivates the need to provide pilots with various tools and information to prevent accidents related to wire strikes. In this report, we present diffe ...
  • Negative Transfer of Training Simulator Study Into the Effects of Overruled Pilot Decision Making
    Negative Transfer of Training: Simulator Study Into the Effects of Overruled Pilot Decision Making
    Landman, A. ;
    Mol, D
    2023-02-01 | PDF
    In this simulator study, we investigated the potential negative transfer of training that may result from situations where a correct decision made by the trainee is being overruled by the instructor to save training time. We hypothesized that discarding a correct decision in a training situation can introduce confusion when the trainee encounters a ...
  • Experimental and Computational Icing Simulation for Large Swept Wings
    Experimental and Computational Icing Simulation for Large Swept Wings
    Broeren, Andy P ;
    Lee, Sam
    2023-01-05 | PDF
    The overall goal of this research was to improve the experimental and computational simulation capability for icing on large swept wings typical of commercial transports. This research included both ice-accretion and aerodynamic studies using the NASA Common Research Model (CRM) as the reference geometry. For this work, a 65-percent-scale version—C ...
101 - 120 / 603