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Showing 281 - 300 of 617 results
  • FAA Center Of Excellence For Alternative Jet Fuels Environment Annual Technical Report For The Period October 1 2016 September 30 2017
    FAA Center Of Excellence For Alternative Jet Fuels & Environment : Annual Technical Report : For The Period October 1, 2016 - September 30, 2017
    ASCENT Aviation Sustainability Center
    2017-09-30 | PDF
    This report covers the period October 1, 2016 through September 30, 2017. The Center was established by the authority of FAA solicitation 13-C-AJFE-Solicitation. During that time the ASCENT team launched a new website, which can be viewed at ascent.aero. The next meeting will be hosted by the Massachusetts Institute of Technology, April 3-4, 2018 i ...
  • The Civil Aerospace Medical Institute An International Resource
    The Civil Aerospace Medical Institute: An International Resource
    United States. Department of Transportation. Federal Aviation Administration. Civil Aerospace Medical Institute
    2017-09-15 | Aeromedical Safety Brochures | PDF
    Aeromedical Safety Brochures are prepared for general aviation pilots, commercial pilots and physicians. The brochures acquaint the aviation community with the physiological challenges of the aviation environment and relevant safety concerns.
  • Simultaneous Imaging of Fuel OH and Three Component Velocity Fields in High Pressure Liquid Fueled Swirl Stabilized Flames at 5 kHz1
    Simultaneous Imaging of Fuel, OH, and Three Component Velocity Fields in High Pressure, Liquid Fueled, Swirl Stabilized Flames at 5 kHz1
    Chterev, Ianko ;
    Rock, Nicholas
    2017-09-01 | PDF
    This paper describes implementation of simultaneous, high speed (5 kHz) stereo PIV, OH and fuel-PLIF in a pressurized, liquid fueled, swirl stabilized flame. The experiments were performed to characterize the flow field, qualitative heat release and fuel spray distributions, and flame dynamics. Acquiring high speed OH-PLIF in pressurized, liquid fu ...
  • Project 42 Acoustical Model of Mach Cutoff Flight
    Project 42 Acoustical Model of Mach Cut-off Flight
    Sparrow, Victor W. ;
    Bailey, Michael
    2017-08-01 | PDF
    Georgia Tech has completed the research plan for this task. Georgia Tech has also acquired both the source code and executable for PCBoom 6.7. PCBoom 6.7 was used to perform the sensitivity analysis on the acoustical model provided by Aerion, Volpe, and Penn State University. Georgia Tech completed the initial benchmarking study for the sensitivity ...
  • Comparison of Methods for Evaluating Impacts of Aviation Noise on Communities
    Comparison of Methods for Evaluating Impacts of Aviation Noise on Communities
    Brenner, Morrisa A ;
    Hansman, R. John
    2017-07-01 | PDF
    Community opposition to the noise concentration from precise NextGen Performance-Based Navigation (PBN) aircraft arrival and departure procedures poses a significant threat to the future of these procedures in the U.S. National Airspace System. A substantial number of complaints concerning airport noise come from locations outside the 65dB Day-Nigh ...
  • Modeling the Effects of Aircraft Flight Track Variability on Community Noise Exposure
    Modeling the Effects of Aircraft Flight Track Variability on Community Noise Exposure
    Brooks, Callen T ;
    Hansman, R. John
    2017-07-01 | PDF
    The implementation of Performance Based Navigation (PBN) routes across the National Airspace System (NAS) has caused a significant concentration of flight tracks. This flight track concentration also creates a concentration of noise impacts on the communities surrounding airports, which has led to an increase in noise complaints at many airports th ...
  • Analysis of Approach Stability and Challenges in Operational Implementation of RNP Approach Procedures
    Analysis of Approach Stability and Challenges in Operational Implementation of RNP Approach Procedures
    Salgueiro, Sandro ;
    Hansman, R. John
    2017-05-01 | PDF
    Required Navigation Performance (RNP) instrument procedures guarantee high levels of navigation precision through highly accurate navigation sources (e.g. GPS) and real-time monitoring of position estimation accuracy. In recent years, the Federal Aviation Administration (FAA) has developed and published public RNP approach procedures at airports ac ...
  • Rotorcraft Noise Abatement Operating Conditions Modeling
    Rotorcraft Noise Abatement Operating Conditions Modeling
    Brentner, Kenneth S
    2017-04-06 | PDF
    The rotorcraft industry, universities, and government research labs have actively engaged in research activities since the late 1960’s to understand rotorcraft noise generation mechanisms and mitigation techniques. Both first principles and semi-empirical prediction tools have been developed as a result of this research. This project will leverage ...
  • Effect of Distillate Fraction of Real Jet Fuel on Sooting Propensity Part 1 Nascent Soot Formation in Premixed StretchStabilized Flames
    Effect of Distillate Fraction of Real Jet Fuel on Sooting Propensity – Part 1: Nascent Soot Formation in Premixed Stretch-Stabilized Flames
    Saggese, Chiara ;
    Singh, Ajay V
    2017-04-01 | PDF
    Real jet fuels are complex mixtures of many organic components, some of which are aromatic compounds. Towards the high-temperature end of the distillation curve, some of the aromatics may contain multiple rings. A trace amount of these high molecular weight species in the fuel would directly allow for soot nucleation in practical engines especially ...
  • Fuel Effects on Lean BlowOut in a Realistic Gas Turbine Combustor
    Fuel Effects on Lean Blow-Out in a Realistic Gas Turbine Combustor
    Esclapez, Lucas ;
    Ma, Peter C
    2017-03-01 | PDF
    Towards the implementation of alternative jet fuels in aviation gas turbines, testing in combustor rigs and engines is required to evaluate the fuel performance on combustion stability, relight, and lean blow-out (LBO) characteristics. The objective of this work is to evaluate the effect of different fuel candidates on the operability of gas turbin ...
  • Modeling Performance and Noise of Advanced Operational Procedures for Current and Future Aircraft
    Modeling Performance and Noise of Advanced Operational Procedures for Current and Future Aircraft
    Thomas, Jacqueline ;
    Hansman, R. John
    2017-02-01 | PDF
    Increasing concerns regarding aircraft noise has encouraged the push to reduce noise via operational adjustments. The objective here is thus to expand analysis capabilities to enable modeling of the impact on aircraft noise due to advanced operational approach procedures, such as delayed deceleration approaches and thrust cutback scheduling on take ...
  • Medications and Flying 2017
    Medications and Flying [2017]
    United States. Department of Transportation. Federal Aviation Administration. Civil Aerospace Medical Institute
    2017-01-01 | Aeromedical Safety Brochures | PDF
    Aeromedical Safety Brochures are prepared for general aviation pilots, commercial pilots and physicians. The brochures acquaint the aviation community with the physiological challenges of the aviation environment and relevant safety concerns.
  • FAA Aerospace Forecast Fiscal Years 20172037
    FAA Aerospace Forecast: Fiscal Years 2017-2037
    United States. Department of Transportation. Federal Aviation Administration
    2017-01-01 | PDF
    The FAA Aerospace Forecasts are developed to support budget and planning needs of the FAA. The forecasts are developed using statistical models to explain and incorporate emerging trends of the different segments of the aviation industry.
  • Microphysical Modeling Analysis of ACCESS 2 Aviation Exhaust Observations
    Microphysical Modeling & Analysis of ACCESS 2 Aviation Exhaust Observations
    Jacobson, Mark Z. ;
    Lele, Sanjiva K.
    2016-12-15 | PDF
    As the popularity of and global access to air travel expands, quantifying its impact on climate and air pollution becomes increasingly important. However, the spatial-temporal distribution of aircraft emissions and their byproducts span many orders of magnitude, as contrail development begins within seconds, but can spread to the kilometer-scale an ...
  • Obstructive Sleep Apnea OSA Overview for the Aerospace Community
    Obstructive Sleep Apnea (OSA): Overview for the Aerospace Community
    United States. Department of Transportation. Federal Aviation Administration. Civil Aerospace Medical Institute. Aerospace Medical Education Division  ...
    2016-11-27 | Aeromedical Safety Brochures | PDF
    Aeromedical Safety Brochures are prepared for general aviation pilots, commercial pilots and physicians. The brochures acquaint the aviation community with the physiological challenges of the aviation environment and relevant safety concerns.
  • Low Temperature Autoignition of Conventional Jet Fuels and Surrogate Jet Fuels With Targeted Properties in a Rapid Compression Machine
    Low Temperature Autoignition of Conventional Jet Fuels and Surrogate Jet Fuels With Targeted Properties in a Rapid Compression Machine
    Valco, Daniel J ;
    Min, Kyungwook
    2016-10-01 | PDF
    The autoignition characteristics of conventional jet fuels (category A) and alternative fuels with targeted properties (category C) are investigated using a rapid compression machine and the direct test chamber charge preparation approach. The category C fuels were purposefully built to anticipate special property variations that generally occur in ...
  • Designing Flightdeck Procedures
    Designing Flightdeck Procedures
    Mauro, Robert ;
    Barshi, Immanuel
    2016-09-07 | PDF
    Aviation professionals have long understood that having safe and effective standard operating procedures for flightcrews is vitally important for conducting safe and efficient operations. Failing to follow flightcrew procedures or having inadequate procedures is consistently cited as a major cause of airline accidents and incidents, and has been ci ...
  • FAA Center of Excellence Alternative Jet Fuels Environment Annual Technical Report 2016 For the Period October 1 2015 September 30 2016
    FAA Center of Excellence Alternative Jet Fuels & Environment : Annual Technical Report 2016 : For the Period October 1, 2015 - September 30, 2016
    ASCENT Aviation Sustainability Center
    2016-09-01 | PDF
    This report covers the period October 1, 2015 through September 30, 2016. The Center was established by the authority of FAA solicitation 13-C-AJFE-Solicitation. During that time the ASCENT team launched a new website, which can be viewed at https://ascent.aero/. The next meeting will be held September 26 - 27, 2017 at the Embassy Suites in Alexand ...
  • Effects of Nocturnal Air and Rail Traffic Noise on Sleep
    Effects of Nocturnal Air and Rail Traffic Noise on Sleep
    Müller, Uwe ;
    Elmenhorst, Eva-Maria
    2016-09-01 | PDF
    Undisturbed and sufficiently long sleep is a prerequisite for a healthy life as well as for the prevention of fatigue-induced accidents. Especially the increasing air and freight rail traffic is more and more shifted to shoulder and night-time hours due to missing capacity and infrastructure during daytime. Thus, the sleep of residents near airport ...
  • TASOPT Engine Model Development A PARTNER Project 48 Report
    TASOPT Engine Model Development: A PARTNER Project 48 Report
    Pantalone, Giulia ;
    Blanco, Elena de la Rosa
    2016-09-01 | PDF
    This report describes the development of a new engine weight surrogate model and High Pressure Compressor (HPC) polytropic efficiency correction for the propulsion module in the Transport Aircraft OPTtimization (TASOPT) code. The goal of this work is to improve the accuracy and applicability of TASOPT in conceptual design of advanced technology, hi ...
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