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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 41 - 60 of 1033 results
  • Recommended FAA Rules for a Generic Remotely Piloted PoweredLift Vehicle Using Two Levels of Automation
    Recommended FAA Rules for a Generic, Remotely Piloted, Powered-Lift Vehicle Using Two Levels of Automation
    Martos, Borja ;
    Duerksen, Noel
    2026-01-01 | PDF
    With growing industry interest in new aircraft technologies, such as unmanned aircraft systems and vertical takeoff and landing vehicles, the FAA determined that current regulations for aircraft/ground station and pilot/operator certification should be examined. Researchers determined that given the current technology capabilities that the current ...
  • InService Ultrasonic Inspections for Turbine Engine LifeLimited Rotating Parts
    In-Service Ultrasonic Inspections for Turbine Engine, Life-Limited Rotating Parts
    Aerospace Industries Association of America  ...
    2026-01-01 | PDF
    The aero gas turbine industry has collaborated with the Federal Aviation Administration (FAA) to study and provide guidance and make recommendations about the implementation of requirements for in-service, sub-surface inspections through the Aerospace Industries Association (AIA) team AIA A-18-004. Data from across a broad spectrum in the industry ...
  • Implementation of ThickShell Finite Elements in the MAT_213 Composite Material Model in LSDYNA
    Implementation of Thick-Shell Finite Elements in the MAT_213 Composite Material Model in LS-DYNA
    Maurya, Ashutosh ;
    Rajan, Subramaniam D.
    2026-01-01 | PDF
    One of the challenges in building a predictive numerical model for composites is accurately modeling the behavior of a structure, especially under impact loading. In prior reports, details of a newly developed orthotropic material model that has three distinct sub-models for describing deformation, damage, and failure of general composites, and has ...
  • What Makes a Good Transportation Demand Management Calculator Research Brief
    What Makes a Good Transportation Demand Management Calculator? [Research Brief]
    Scheib, Walter ;
    Kilpatrick, Ian
    2026-01-01 | PDF
    This study identified seventeen TDM calculators in use around the country. These calculators were evaluated on their interface, format, directions, methodology, validity, and versatility. The study then conducted two rounds of interviews. The first round was with some of the jurisdictions currently using these calculators to understand what went in ...
  • Lidar for Geotechnical Applications Technical Summary
    Lidar for Geotechnical Applications [Technical Summary]
    Gautreau, Gavin P.
    2026-01-01 | PDF
    This research focused on the utilization of Light Detection and Ranging (LiDAR) technology within the Louisiana Department of Transportation and Development (DOTD) for various geotechnical applications. The study addresses key aspects, including site investigation and reconnaissance for drilling operations, Geotechnical Asset Management inventory d ...
  • Survey of PerformanceBased and RiskBased Oversight Strategies and Methods
    Survey of Performance-Based and Risk-Based Oversight Strategies and Methods
    Gilbert, Tricia ;
    Lamont, Jennifer
    2025-12-01 | PDF
    Recent changes in aviation safety oversight in the Federal Aviation Administration (FAA) and globally have incorporated performance-based oversight (PBO) that assesses an organization's management system effectiveness in achieving defined safety objectives. PBO is intended to be complementary to traditional compliance-based oversight that examines ...
  • Electronic Institutional Review Board eIRB Usability Evaluation
    Electronic Institutional Review Board (eIRB) Usability Evaluation
    St. Amour, Elena ;
    Wark, Priscilla
    2025-11-01 | PDF
    The process of submitting an application for research involving human participants to the Institutional Review Board (IRB) at the Federal Aviation Administration (FAA) William J. Hughes Technical Center for Advanced Aerospace needs modernization. We conducted an evaluation of the first iteration of a newly proposed electronic Institutional Review B ...
  • ProcessingProperty Relationship of OxideOxide Composites
    Processing-Property Relationship of Oxide/Oxide Composites
    National Institute for Aviation Research (U.S.)  ...
    2025-10-01 | PDF
    A process-property relationship analysis has been undertaken on a set of Axiom Material AX-7800 data obtained under a program to develop the framework for qualification of oxide/oxide ceramic matrix composite materials. The data show high variability in physical and mechanical properties, resulting in unacceptably low B-basis allowable when using t ...
  • Survey of PerformanceBased and RiskBased Oversight Strategies and Methods
    Survey of Performance-Based and Risk-Based Oversight Strategies and Methods
    Gilbert, Tricia ;
    Lamont, Jennifer
    2025-08-01 | PDF
    Recent changes in aviation safety oversight in the Federal Aviation Administration (FAA) and globally have incorporated performance-based oversight (PBO) which assess organization management system effectiveness in achieving defined safety objectives. PBO is intended to be complementary to traditional compliance-based oversight which examines confo ...
  • Aviation Safety Oversight System Tools Technologies and Techniques
    Aviation Safety Oversight System Tools, Technologies, and Techniques
    Gilbert, Tricia ;
    Lamont, Jennifer
    2025-08-01 | PDF
    The FAA launched a Future of Oversight research initiative to meet regulatory and safety oversight challenges with the rapidly evolving U.S. National Airspace System with new aircraft technologies, emerging operations, and increasingly complex and global aviation industry operations and infrastructure. This initiative is intended to inform FAA poli ...
  • ULTEM 9085 Material Extrusion Polymer Based Additive Manufacturing Process Parameter Effects on Mechanical Performance
    ULTEM 9085™ Material Extrusion Polymer Based Additive Manufacturing: Process Parameter Effects on Mechanical Performance
    Tomblin, John ;
    Tay, Neville
    2025-08-01 | PDF
    The project objective is to correlate the changes in microstructure caused by the adjustment of high-impact process parameters to specimen tensile mechanical performance using ASTM D638 Type 1 static tensile tests. This project evaluated the effects of high-impact process parameters on the mechanical performance of additive manufactured ULTEM 9085 ...
  • Backcalculated Dynamic Modulus Master Curve From the Time Histories of Falling Weight Deflectometer Surface Deflections
    Backcalculated Dynamic Modulus Master Curve From the Time Histories of Falling Weight Deflectometer Surface Deflections
    Notani, Mohammad Ali ;
    Cho, Seonghwan
    2025-07-14 | PDF
    Accurate structural evaluation of flexible pavements is important for cost-efficient maintenance and rehabilitation (M&R) strategies. Traditional back-calculation methods based on Falling Weight Deflectometer (FWD) data assume elastic behavior, overlooking the viscoelastic nature of asphalt materials and subsequently leading to inaccuracies. This s ...
  • Development of a Titanium Alloy Ti6Al4V Generalized Yield Surface Material Model Used in LSDYNA
    Development of a Titanium Alloy Ti-6Al-4V Generalized Yield Surface Material Model Used in LS-DYNA
    Ragone, Fabrizio
    2025-06-01 | PDF
    This thesis is part of a collaborative effort involving George Mason University (GMU), The Ohio State University (OSU), the National Aeronautics and Space Administration (NASA) Glenn Research Center (GRC), and the Federal Aviation Administration (FAA) under the Aircraft Catastrophic Failure Prevention Program (ACFPP). The primary objective of this ...
  • Reinforcement LearningAssisted Virtualized Security Framework for CAVs
    Reinforcement Learning-Assisted Virtualized Security Framework for CAVs
    Sahoo, Jagruti ;
    Mukwaya, Arthur Noa
    2025-06-01 | PDF
    Security vulnerabilities in the Connected and Autonomous Vehicle (CAV) software can allow hackers to perform malicious actions ranging from draining batteries and taking control of the steering wheel to disabling the alarm system. CAV software is subject to several cyber-attacks including memory corruption, code injection, remote code execution, an ...
  • Ductile Fracture of Ti6Al4V Titanium Alloy Under Compressive Stress States
    Ductile Fracture of Ti-6Al-4V Titanium Alloy Under Compressive Stress States
    White, Ethan J.
    2025-05-07 | PDF
    A notoriously challenging modeling and simulation problem is the impact physics of jet engine debris striking the engine case during a fan blade-out or rotor-burst event. The multiplicity of potential failure modes resulting from the impact and subsequent penetration of high-speed engine fragments advances the challenge. The ductile fracture model ...
  • AIA Recommendations Related to Gas Turbine Engine Overspeed Events from High Pressure Turbine Shaft LossofLoad
    AIA Recommendations Related to Gas Turbine Engine Overspeed Events from High Pressure Turbine Shaft Loss-of-Load
    Aerospace Industries Association of America
    2025-05-01 | PDF
    In 2015, the FAA requested the Aerospace Industries Association form a voluntary advisory group related to gas turbine overspeed events resulting from shaft loss-of-load. Motivating the request at the time were engine applicant’s requests to be relieved of considering certain elements of the shaft system from failure consideration in determining th ...
  • Point Cloud Failure Criterion for Impact Modeling of Composite Structures
    Point Cloud Failure Criterion for Impact Modeling of Composite Structures
    Maurya, Ashutosh
    ORCID ICON IMG
    2025-04-01 | PDF
    An orthotropic elasto-plastic damage material model (OEPDMM) suitable for impact analysis of composite materials has been developed through a joint research project funded by the Federal Aviation Administration (FAA) and the National Aeronautics and Space Administration (NASA). The developed material model has been implemented into LS-DYNA®, a comm ...
  • Analysis of the Ground Collision Avoidance System Within NASAs Expandable Vehicle Autonomy Architecture
    Analysis of the Ground Collision Avoidance System Within NASA’s Expandable Vehicle Autonomy Architecture
    Hook, Loyd R ;
    Urban, Jude M
    2025-03-01 | PDF
    This document provides comprehensive methodology and results in the evaluation of a Ground Collision Avoidance System (GCAS) tuned for a general aviation airplane. The GCAS under investigation was designed by the Armstrong flight research center at the National Aeronautics and Space Administration (NASA). This research focused on two characteristic ...
  • Aircraft Air Quality and Bleed Air Contamination Detection: Phase 2, Volume 2 [supporting dataset]
    Fox, Richard B ;
    Jones, Byron W
    2025-02-14 | ZIP
    The purpose of this project was to provide a data driven process to identify sensor technologies with the potential for detecting and identifying low levels of contaminants that may occasionally be present in aircraft engine bleed air supplies. Bleed air from a ground-based aircraft propulsion engine and an auxiliary power unit (APU) were used to s ...
    Dataset Supporting Files
  • Structurally Distributed Aircraft Battery
    Structurally Distributed Aircraft Battery
    Kumar, Jitendra ;
    Morgan, Alexander
    2025-02-01 | PDF
    Lithium-ion batteries (LIBs) are critical to the early adoption of electrified small aircraft because LIBs can provide the required energy, power, and cycle life. However, safety is still a concern, especially in dangerous situations like aircraft crashes or operations in harsh conditions. If damaged, the battery can release stored energy fast, lea ...
41 - 60 / 1033