National Academies Press: OpenBook

Wake Turbulence: An Obstacle to Increased Air Traffic Capacity (2008)

Chapter: Appendix D: Acronyms and Abbreviations

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Suggested Citation:"Appendix D: Acronyms and Abbreviations." National Research Council. 2008. Wake Turbulence: An Obstacle to Increased Air Traffic Capacity. Washington, DC: The National Academies Press. doi: 10.17226/12044.
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Page 83
Suggested Citation:"Appendix D: Acronyms and Abbreviations." National Research Council. 2008. Wake Turbulence: An Obstacle to Increased Air Traffic Capacity. Washington, DC: The National Academies Press. doi: 10.17226/12044.
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Page 84

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D Acronyms and Abbreviations ACES Airspace Concept Evaluation System ADS-B Automatic Dependent Surveillance-Broadcast ASRS Aviation Safety Reporting System ATC air traffic control AVOSS Aircraft Vortex Spacing System CFD computational fluid dynamics CSPA closely spaced parallel approach CSPR closely spaced parallel runway DFW Dallas/Fort Worth International Airport DHS Department of Homeland Security DLR Deutsches Zentrum für Luft- und Raumfahrt DOD Department of Defense DOT Department of Transportation EDDF Frankfurt International Airport EDR eddy dissipation rate FAA Federal Aviation Administration GPS Global Positioning System 83

84 APPENDIX D IAH George Bush Intercontinental Airport (in Houston) IFR Instrument Flight Rule IMC instrument meteorological conditions JFK John F. Kennedy International Airport JPDO Joint Planning and Development Office LAAS Local Area Augmentation System LaRC Langley Research Center (NASA) LES large eddy simulation NASA National Aeronautics and Space Administration NCAR National Center for Atmospheric Research NextGen Next Generation Air Transportation System NM nautical mile NOAA National Oceanic and Atmospheric Administration NRC National Research Council OMB Office of Management and Budget OSTP Office of Science and Technology Policy R&D research and development REDAC Research, Engineering and Development Advisory Committee RVSM reduced vertical separation minimum SFO San Francisco International Airport SSWG Separation Standards Working Group (of the FFA’s REDAC) STL Lambert-St. Louis International Airport VESA Vortex Encounter Severity Assessment VFR Visual Flight Rule VMC visual meteorological conditions WAAS Wide Area Augmentation System WRF Weather Research and Forecasting

Next: Appendix E: Sample Wake Encounter Reporting Form »
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Without major changes, the current air transportation system will be unable to accommodate the expected increase in demand by 2025. One proposal to address this problem is to use the Global Positioning System to enable aircraft to fly more closely spaced. This approach, however, might be limited by the wake turbulence problem, which can be a safety hazard when smaller aircraft follow relatively larger aircraft too closely. To examine how this potential hazard might be reduced, Congress in 2005 directed NASA to request a study from the NRC to assess the federal wake turbulence R&D program. This book provides a description of the problem, an assessment of the organizational challenges to addressing wake turbulence, an analysis of the technical challenges in wake turbulence, and a proposal for a wake turbulence program plan. A series of recommendations for addressing the wake turbulence challenge are also given.

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