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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 121 - 140 of 802 results
  • 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 ...
  • Terminal Area Icing Weather Information for NextGen TAIWIN User Evaluation Results
    Terminal Area Icing Weather Information for NextGen (TAIWIN) User Evaluation Results
    United States. Department of Transportation. Federal Aviation Administration. Aviation Weather Demonstration and Evaluation (AWDE)  ...
    2023-01-01 | PDF
    The FAA Aviation Weather Research Program (AWRP) funded the National Center for Atmospheric Research (NCAR) In-Flight Icing Product Development Team (IFIPDT) to develop an icing diagnosing and forecasting product. The National Oceanic and Atmospheric Administration (NOAA) Aviation Weather Testbed (AWT) was tasked to integrate Icing Product Alaska ( ...
  • Method to Identify and Quantify MultipleEvent Roughness
    Method to Identify and Quantify Multiple-Event Roughness
    Gerardi, Tony ;
    Gerardi, Michael
    2023-01-01 | PDF
    FAA Advisory Circular (AC) 150/5380-9 “provides guidelines and procedures for measuring and evaluating runway roughness as identified by surface profile data of rigid and flexible airport pavements. The guidance in this AC provides technical procedures to quantify surface irregularities and to determine how surface irregularities may affect specifi ...
  • Guidelines to Minimize Manufacturing Induced Anomalies in Critical Rotating Parts 2022 Revision
    Guidelines to Minimize Manufacturing Induced Anomalies in Critical Rotating Parts – 2022 Revision
    AIA Rotor Manufacturing Team  ...
    2023-01-01 | PDF
    This report was developed by a partnership of the Aerospace Industries Association (AIA) Rotor Integrity Steering Committee (RISC) member company manufacturing experts and the Federal Aviation Administration (FAA) in response to accidents and incidents caused by Manufacturing Induced Anomalies in Critical Rotating Parts. According to a 2017 summary ...
  • Effect of Disinfectants on Aircraft Cabin Interior Materials
    Effect of Disinfectants on Aircraft Cabin Interior Materials
    Bhasin, Akhil ;
    Maichan, Tanat
    2022-12-01 | PDF
    Due to the coronavirus 2019 (COVID-19) public health emergency, the airline industry implemented meticulous and frequent interior disinfection procedures. This excessive use of disinfectants raised concerns on its potential negative impact on materials performance. This research focuses on evaluating the performance of aircraft cabin materials when ...
  • Practical Lessons Learned from Planning Collecting Processing and Analyzing Small Unmanned Aircraft System Data for Airfield Pavement Inspection
    Practical Lessons Learned from Planning, Collecting, Processing, and Analyzing Small Unmanned Aircraft System Data for Airfield Pavement Inspection
    Sourav, Md Abdullah All ;
    Ceylan, Halil
    2022-12-01 | PDF
    A small unmanned aircraft system (sUAS) or drone has proven to be a valuable tool for civil infrastructure inspection, highway inspection, unpaved road inspection, bridge inspection, construction work progress monitoring, and other applications. Additionally, several proof-of-concept studies showed that sUAS could be helpful for airfield pavement d ...
  • Methods of Collection and Analysis of Acid Gases in Fire Tests
    Methods of Collection and Analysis of Acid Gases in Fire Tests
    Speitel, Louise ;
    Safronava, Natallia
    2022-12-01 | PDF
    This report documents proven methods of collection and analysis for acid gases in fire tests conducted at the FAA Technical Center. It focuses on methods of collection and analysis requiring trapping hot acid gases at the sampling point and avoiding errors due to sample line losses. The sampling system, collection tubes and procedures are described ...
  • Small Unmanned Aircraft System for Pavement Inspection Task 4Execute the Field Demonstration Plan and Analyze the Collected Data
    Small Unmanned Aircraft System for Pavement Inspection: Task 4—Execute the Field Demonstration Plan and Analyze the Collected Data
    Sourav, Md. Abdullah All ;
    Ceylan, Halil
    2022-11-02 | PDF
    The primary objectives of this research project are to develop recommended processes and procedures for using small unmanned/uncrewed aircraft system (sUAS) to complement current methods of airport Pavement Management Program (PMP) inspections and to evaluate various types of sUAS platforms and sensors that will lead to recommended minimum specific ...
  • Energy Management Algorithms and Displays
    Energy Management Algorithms and Displays
    Silver, Isaac ;
    Kish, Brian
    2022-11-01 | PDF
    Loss of control at low altitude in the traffic pattern is one of the main causes of fatal accidents in general aviation. Many loss-of-control accidents can be attributed to the pilot losing awareness of the energy state of the aircraft. An intuitive and accessible display for energy state and specific excess power can potentially remedy these types ...
  • Experimental Characterization and Finite Element Modeling of Composites to Support a Generalized Orthotropic ElastoPlastic Damage Material Model for Impact Analysis
    Experimental Characterization and Finite Element Modeling of Composites to Support a Generalized Orthotropic Elasto-Plastic Damage Material Model for Impact Analysis
    Khaled, Bilal
    2022-11-01 | PDF
    A Dissertation Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy. An orthotropic elasto-plastic damage material model (OEPDMM) suitable for impact simulations has been developed through a joint research project funded by the Federal Aviation Administration (FAA) and the National Aeronautics and Space Administr ...
  • Failure Modeling in an Orthotropic Plastic Material Model Under Static and Impact Loading
    Failure Modeling in an Orthotropic Plastic Material Model Under Static and Impact Loading
    Shyamsunder, Loukham
    2022-11-01 | 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 ...
  • Machine Learning Solutions for TopDown Cracking Design of Airport Rigid Pavement
    Machine Learning Solutions for Top-Down Cracking Design of Airport Rigid Pavement
    Ashtiani, Ali Z ;
    Paniagua, Thomas
    2022-11-01 | PDF
    The Federal Aviation Administration (FAA) rigid pavement design process is based on bottom-up cracking failure resulting from tensile stress at the bottom of a flat slab under aircraft loads. The FAA has a long-term goal to add top-down cracking failure mode to the FAA Rigid and Flexible Iterative Elastic Layered Design (FAARFIELD) program. The exi ...
  • Lightning Protection of Aircraft Handbook
    Lightning Protection of Aircraft Handbook
    Fisher, Franklin A ;
    Plumer, J. Anderson
    2022-11-01 | PDF
    This handbook edition is an update of the DOT/FAA/CT-89/22 Aircraft Lightning Protection Handbook to include major advances and updates of standards and other criteria used for protection design and verification testing of airframes and systems. The handbook will assist aircraft design, manufacturing, and certification organizations in understandin ...
  • Guidelines for Formulating and Writing Process Control Documents and Process Specifications for Advanced Materials
    Guidelines for Formulating and Writing Process Control Documents and Process Specifications for Advanced Materials
    Tomblin, John ;
    Lovingfoss, Royal
    2022-10-01 | PDF
    This report presents a set of guidelines for information recommended to be included in process control documents and process specifications for non-metallic advanced materials. The guidelines are organized by general information that applies to all polymer-based material systems, followed by specific information listed by material type. It is inten ...
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