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FAA Technical Library

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 21 - 40 of 588 results
  • Design Analysis and Test Development of FullScale Fuselage Test Panels to Assess Emerging Metallic Structures Technologies
    Design, Analysis, and Test Development of Full-Scale Fuselage Test Panels to Assess Emerging Metallic Structures Technologies
    Kulak, Michael ;
    Bakuckas, John Jr.
    2024-11-01 | PDF
    The aircraft industry is striving to improve structural performance and reduce costs in fabrication, operation, and maintenance by introducing advanced designs/materials in conjunction with advanced manufacturing/assembly technologies. Collectively these technologies are referred to as Emerging Metallic Structures Technologies (EMST). Prior tests b ...
  • Bonded Repairs to Composite Wing Panel Structure Phase 4 Feasibility Study of Panels with FiberOriented Scarf Repairs
    Bonded Repairs to Composite Wing Panel Structure: Phase 4, Feasibility Study of Panels with Fiber-Oriented Scarf Repairs
    Labik, Tim M ;
    Chadha, Reewanshu
    2024-11-01 | PDF
    The Federal Aviation Administration (FAA) and The Boeing Company have investigated safety and structural integrity issues of bonded repair technology. Efforts are focused on testing and analyzing bonded repairs to 40-in x 24-in flat carbon fiber-reinforced composite panels representative of wing skin using the Aircraft Beam Structural Test (ABST) f ...
  • Investigation of Certification Considerations for Distributed Electric Propulsion DEP Aircraft 2024
    Investigation of Certification Considerations for Distributed Electric Propulsion (DEP) Aircraft [2024]
    McKillip, R. Jr. ;
    Wachspress, D
    2024-10-01 | PDF
    Efforts from a multi-year investigation examining the use of estimation of 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 experimental testing of representa ...
  • An Evaluation of Parameters Pertinent to Dry Ice Sublimation
    An Evaluation of Parameters Pertinent to Dry Ice Sublimation
    Anaya, Lindsey ;
    Keslar, Daniel
    2024-10-01 | PDF
    As a result of the COVID-19 (SARS-CoV-2) pandemic, over 12.7 billion vaccine doses were shipped and administered across 184 countries. Transportation via aircraft was a significant contributor in this effort. Many of the COVID-19 vaccines need to be stored at extremely low temperatures to maintain efficacy, therefore, dry ice has been used as a met ...
  • Development of a Revised Test Method for Evaluating the Performance of Evacuation Slide Materials During Exposure to Radiant Heat
    Development of a Revised Test Method for Evaluating the Performance of Evacuation Slide Materials During Exposure to Radiant Heat
    Rehn, Steven ;
    Do, Dung
    2024-10-01 | PDF
    This report summarizes the research effort undertaken by the Federal Aviation Administration (FAA) to develop an improved test methodology for determining the performance of aircraft evacuation slide materials when exposed to radiant heat. A laboratory-scale test method was previously developed by the FAA circa 1983, which used a pressurized cylind ...
  • The Effect of Varying the Air Openings around the Sliding Platform in the Radiant Panel Insulation Test
    The Effect of Varying the Air Openings around the Sliding Platform in the Radiant Panel Insulation Test
    Rehn, Steven
    2024-10-01 | PDF
    A radiant panel insulation test round robin with 24 labs was conducted in 2015 and the test results varied considerably between labs. Dimension data about each apparatus was collected from each participating lab and the air openings around the sliding platform were identified as one possible cause of the test discrepancies. Preliminary studies were ...
  • Small Unmanned AircraftBased Foreign Object Debris Detection on Airport Surfaces
    Small Unmanned Aircraft-Based Foreign Object Debris Detection on Airport Surfaces
    Shaffer, Logan ;
    Hall, David
    2024-09-01 | PDF
    Foreign Object Debris (FOD) can create significant safety implications for aircraft and personnel and is a continuous concern in the airport environment. The FAA Airport Technology Research and Development Branch conducted a research effort to explore the feasibility and maturity of using commercially available small unmanned aircraft systems (sUAS ...
  • InService Performance of Concrete Airport Pavements Constructed Using State Highway Specifications
    In-Service Performance of Concrete Airport Pavements Constructed Using State Highway Specifications
    Peshkin, David G. ;
    Quasem, Tanvir
    2024-09-01 | 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 ...
  • A State of Charge Analysis of 12 Lithium Ion Batteries 128 Volt Previously Shipped on Aircraft
    A State of Charge Analysis of 12 Lithium Ion Batteries (12.8 Volt) Previously Shipped on Aircraft
    Keslar, Daniel
    2024-09-01 | PDF
    The transportation of lithium batteries is heavily regulated. UN 3480, lithium-ion batteries (batteries not packed with or contained within equipment) are forbidden on passenger aircraft and cannot exceed 30% state of charge (SoC) when transported on cargo aircraft. In March 2024, two packages containing lithium-ion cells (UN3480) started to smolde ...
  • Analysis of Granular BaseSubbase in Airport Pavements Using Embedded Sensors
    Analysis of Granular Base/Subbase in Airport Pavements Using Embedded Sensors
    Tutumluer, Erol ;
    Kang, Mingu
    2024-09-01 | PDF
    This project investigates the modulus and deformation behavior of granular base/subbase layers in airport pavements using three types of embedded sensors: bender element (BE) field sensors, coil sensors, and pressure cells. These sensors were installed in multiple test items at the Federal Aviation Administration’s Construction Cycle 9 (CC9) of the ...
  • Cold Dwell Fatigue of Titanium Alloys History Current State and Aviation Industry Perspective
    Cold Dwell Fatigue of Titanium Alloys: History, Current State, and Aviation Industry Perspective
    Pilchak, Adam ;
    Fox, Kate
    2024-09-01 | PDF
    This report summarizes the current state of understanding related to cold dwell fatigue (CDF) of titanium alloys, which is a failure mechanism that can lead to uncontained failure of rotating components. Jet engine manufacturers have brought forward their collective field and spin rig experience related to CDF and coupled it with a thorough literat ...
  • Airport Pavement MultipleEvent Roughness Detection and Evaluation
    Airport Pavement Multiple-Event Roughness Detection and Evaluation
    Gerardi, Tony ;
    Gerardi, Michael
    2024-08-01 | PDF
    Airport pavements are critical to American commerce. Like all structures, these pavements are susceptible to wear and damage through use and external forces, these factors can cause costly repairs and maintenance to keep the pavement functional and safe to use. The Federal Aviation Administration (FAA) has a number of Advisory Circulars that act as ...
  • Enhancing Pavement Assessment with Dynamic Backcalculation A Dynamic Finite Element Approach
    Enhancing Pavement Assessment with Dynamic Backcalculation: A Dynamic Finite Element Approach
    Hajj, Elie Y ;
    Skaff, Rami
    2024-08-01 | PDF
    The Heavy Weight Deflectometer(HWD)/Falling Weight Deflectometer (FWD) plays a crucial role in assessing pavement’s structural condition. It consists of applying an impulse load to simulate a moving wheel and measuring pavement surface deflections. Pavement variables, such as moduli, are determined through backcalculation, which involves a forward ...
  • Measuring the Fire Growth Potential of Combustible Solids Using a Cone Calorimeter
    Measuring the Fire Growth Potential of Combustible Solids Using a Cone Calorimeter
    Lyon, Richard E.
    2024-07-01 | 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 fuselage as the flame-spread rate, time-to-flashover, or time to incapacitation, respectively. The results are used to indicate the level of pass ...
  • 14 CFR Part 23 Automatic Ground Collision Avoidance System Auto GCAS Certification Roadmap
    14 CFR Part 23 Automatic Ground Collision Avoidance System (Auto GCAS) Certification Roadmap
    LeClair, R ;
    Stone, B
    2024-07-01 | PDF
    Automatic Ground Collision Avoidance System (Auto GCAS) can be integrated on 14 Code of Federal Regulations (CFR) Part 23 general aviation aircraft with existing certified autopilot systems to reduce controlled flight into terrain (CFIT) to below the current mishap rate. To ensure safe and effective Auto GCAS implementation, regulators must assure ...
  • Determining the Equivalent Thermal Gradient for Rigid Pavements at the National Airport Pavement Test Facility
    Determining the Equivalent Thermal Gradient for Rigid Pavements at the National Airport Pavement Test Facility
    Offenbacker, Daniel ;
    Brill, David R
    2024-07-01 | PDF
    In recent years, the Federal Aviation Administration (FAA) has focused on identifying and quantifying corner breaking in rigid airport pavements. Prior research studies at the FAA National Airport Pavement Test Facility (NAPTF) have shown premature corner breaks that were not anticipated during design. The FAA has since attributed the corner breaks ...
  • Evaluation of SystemTheoretic Process Analysis STPA for Improving Aviation Safety
    Evaluation of System-Theoretic Process Analysis (STPA) for Improving Aviation Safety
    Thomas, John P ;
    Van Houdt, John G
    2024-07-01 | PDF
    This report summarizes the results of a joint effort by civil aviation authorities to learn System-Theoretic Process Analysis (STPA) and evaluate its applicability to aviation safety including safety management, aircraft development, safety assessment, and certification. Subject matter experts (SMEs) from FAA, EASA, ANAC, ICAO, and NASA participate ...
  • Qualification of Additively Manufactured Material Extrusion Thermoplastic and Lessons Learned
    Qualification of Additively Manufactured Material Extrusion Thermoplastic and Lessons Learned
    Tomblin, John ;
    Andrulonis, Rachael
    2024-07-01 | PDF
    Wichita State University (WSU) - National Institute for Aviation Research (NIAR) completed an initial additive manufacturing research project under the Federal Aviation Administration’s (FAA) Joint Advanced Materials and Structures (JAMS) program between 2016 and 2019. The project focused on the development of a framework for the qualification of p ...
  • 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 ...
  • 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 ...
21 - 40 / 588