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Wake Vortex Advisory System Wakevas Evaluation Of Impacts On The National Airspace System
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Book Synopsis Wake Vortex Advisory System (Wakevas) Evaluation of Impacts on the National Airspace System by : National Aeronautics and Space Adm Nasa
Download or read book Wake Vortex Advisory System (Wakevas) Evaluation of Impacts on the National Airspace System written by National Aeronautics and Space Adm Nasa and published by . This book was released on 2018-09-21 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is one of a series that describes an ongoing effort in high-fidelity modeling/simulation, evaluation and analysis of the benefits and performance metrics of the Wake Vortex Advisory System (WakeVAS) Concept of Operations being developed as part of the Virtual Airspace Modeling and Simulation (VAMS) project. A previous study, determined the overall increases in runway arrival rates that could be achieved at 12 selected airports due to WakeVAS reduced aircraft spacing under Instrument Meteorological Conditions. This study builds on the previous work to evaluate the NAS wide impacts of equipping various numbers of airports with WakeVAS. A queuing network model of the National Airspace System, built by the Logistics Management Institute, Mclean, VA, for NASA (LMINET) was used to estimate the reduction in delay that could be achieved by using WakeVAS under non-visual meteorological conditions for the projected air traffic demand in 2010. The results from LMINET were used to estimate the total annual delay reduction that could be achieved and from this, an estimate of the air carrier variable operating cost saving was made.Smith, Jeremy C. and Dollyhigh, Samuel M.Langley Research CenterVORTEX ADVISORY SYSTEM; NATIONAL AIRSPACE SYSTEM; SYSTEMS ANALYSIS; SYSTEMS SIMULATION; AIRCRAFT APPROACH SPACING; INSTRUMENT FLIGHT RULES; DELAY; AIRLINE OPERATIONS; AIRPORTS...
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781720384502 Total Pages :44 pages Book Rating :4.3/5 (845 download)
Book Synopsis Analysis of Wake Vas Benefits Using Aces Build 3.2.1 by : National Aeronautics and Space Administration (NASA)
Download or read book Analysis of Wake Vas Benefits Using Aces Build 3.2.1 written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-05-29 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The FAA and NASA are currently engaged in a Wake Turbulence Research Program to revise wake turbulence separation standards, procedures, and criteria to increase airport capacity while maintaining or increasing safety. The research program is divided into three phases: Phase I near term procedural enhancements; Phase II wind dependent Wake Vortex Advisory System (WakeVAS) Concepts of Operations (ConOps); and Phase III farther term ConOps based on wake prediction and sensing. The Phase III Wake VAS ConOps is one element of the Virtual Airspace Modelling and Simulation (VAMS) program blended concepts for enhancing the total system wide capacity of the National Airspace System (NAS). This report contains a VAMS Program Type 1 (stand-alone) assessment of the expected capacity benefits of Wake VAS at the 35 FAA Benchmark Airports and determines the consequent reduction in delay using the Airspace Concepts Evaluation System (ACES) Build 3.2.1 simulator.Smith, Jeremy C.Langley Research CenterAIRSPACE; NATIONAL AIRSPACE SYSTEM; TURBULENCE; VORTEX ADVISORY SYSTEM; WAKES; ATMOSPHERIC SOUNDING; DETECTION; SAFETY; SATELLITE SOUNDING; SIMULATORS
Book Synopsis Wake Vortex Advisory System (WakeVAS) Concept of Operations by :
Download or read book Wake Vortex Advisory System (WakeVAS) Concept of Operations written by and published by DIANE Publishing. This book was released on 2003 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wake Turbulence by : National Research Council
Download or read book Wake Turbulence written by National Research Council and published by National Academies Press. This book was released on 2008-04-27 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721038695 Total Pages :28 pages Book Rating :4.0/5 (386 download)
Book Synopsis Wake Vortex Advisory System (WakeVAS) Concept of Operations by : National Aeronautics and Space Administration (NASA)
Download or read book Wake Vortex Advisory System (WakeVAS) Concept of Operations written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-12 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: NASA Langley Research Center has a long history of aircraft wake vortex research, with the most recent accomplishment of demonstrating the Aircraft VOrtex Spacing System (AVOSS) at Dallas/Forth Worth International Airport in July 2000. The AVOSS was a concept for an integration of technologies applied to providing dynamic wake-safe reduced spacing for single runway arrivals, as compared to current separation standards applied during instrument approaches. AVOSS included state-of-the-art weather sensors, wake sensors, and a wake behavior prediction algorithm. Using real-time data AVOSS averaged a 6% potential throughput increase over current standards. This report describes a Concept of Operations for applying the technologies demonstrated in the AVOSS to a variety of terminal operations to mitigate wake vortex capacity constraints. A discussion of the technological issues and open research questions that must be addressed to design a Wake Vortex Advisory System (WakeVAS) is included.Rutishauser, David and Lohr, Gary and Hamilton, David and Powers, Robert and McKissick, Burnell and Adams, Catherine and Norris, EdwardLangley Research CenterAIRCRAFT WAKES; VORTEX ADVISORY SYSTEM; VORTICES; NASA PROGRAMS; AIRCRAFT APPROACH SPACING; AIR TRAFFIC CONTROL; ARRIVALS
Download or read book Air Service Journal written by and published by . This book was released on 1919 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Guide to Mobile Aircraft Arresting System Installation by :
Download or read book Guide to Mobile Aircraft Arresting System Installation written by and published by . This book was released on 2000 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Maintaining U.S. Leadership in Aeronautics by : National Research Council
Download or read book Maintaining U.S. Leadership in Aeronautics written by National Research Council and published by National Academies Press. This book was released on 1998-10-07 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: After the completion of the National Research Council (NRC) report, Maintaining U.S. Leadership in Aeronautics: Scenario-Based Strategic Planning for NASA's Aeronautics Enterprise (1997), the National Aeronautics and Space Administration (NASA) Office of Aeronautics and Space Transportation Technology requested that the NRC remain involved in its strategic planning process by conducting a study to identify a short list of revolutionary or breakthrough technologies that could be critical to the 20 to 25 year future of aeronautics and space transportation. These technologies were to address the areas of need and opportunity identified in the above mentioned NRC report, which have been characterized by NASA's 10 goals (see Box ES-1) in "Aeronautics & Space Transportation Technology: Three Pillars for Success" (NASA, 1997). The present study would also examine the 10 goals to determine if they are likely to be achievable, either through evolutionary steps in technology or through the identification and application of breakthrough ideas, concepts, and technologies.
Book Synopsis Simulator Study of Stall/post-stall Characteristics of a Fighter Airplane with Relaxed Longitudinal Static Stability by :
Download or read book Simulator Study of Stall/post-stall Characteristics of a Fighter Airplane with Relaxed Longitudinal Static Stability written by and published by . This book was released on 1979 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Parametric Study of the Aerodynamic Characteristics of Nose-cylinder-flare Bodies at a Mach Number of 6.0 by : George C. Ashby
Download or read book A Parametric Study of the Aerodynamic Characteristics of Nose-cylinder-flare Bodies at a Mach Number of 6.0 written by George C. Ashby and published by . This book was released on 1965 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies of Airframe-propulsion-system Integration for Mach 6 Cruise Vehicles by :
Download or read book Studies of Airframe-propulsion-system Integration for Mach 6 Cruise Vehicles written by and published by . This book was released on 1967 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Summary of Flight-test Results of the VZ-2 Tilt-wing Aircraft by : Robert J. Pegg
Download or read book Summary of Flight-test Results of the VZ-2 Tilt-wing Aircraft written by Robert J. Pegg and published by . This book was released on 1962 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Buckling of a Pressurized Toroidal Ring Under Uniform External Loading by : George E. Weeks
Download or read book Buckling of a Pressurized Toroidal Ring Under Uniform External Loading written by George E. Weeks and published by . This book was released on 1967 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of Engine-exhaust-airframe Interference on a Cruise Vehicle at Mach 6 by : James M. Cubbage
Download or read book Investigation of Engine-exhaust-airframe Interference on a Cruise Vehicle at Mach 6 written by James M. Cubbage and published by . This book was released on 1971 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results from an investigation of the effects of underexpanded engine exhaust flow on the aerodynamic performance and stability of a cruise airplane at Mach 6 are presented. The influence of wing reflex angle and nozzle geometry on exhaust flow interference effects was investigated on a flat-plate model. The experiments were conducted at a free-stream Reynolds number of 17.05 X 10 (to the 6 power) based on the length of the airplane model over a model angle-of-attack range of 0(degrees) to 10(degrees) and at nozzle static-pressure ratios from 1 to approximately 4.
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721656592 Total Pages :34 pages Book Rating :4.6/5 (565 download)
Book Synopsis A Sensitivity Study of the Aircraft Vortex Spacing System (Avoss) Wake Predictor Algorithm to the Resolution of Input Meteorological Profiles by : National Aeronautics and Space Administration (NASA)
Download or read book A Sensitivity Study of the Aircraft Vortex Spacing System (Avoss) Wake Predictor Algorithm to the Resolution of Input Meteorological Profiles written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-21 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: The AVOSS project demonstrated the feasibility of applying aircraft wake vortex sensing and prediction technologies to safe aircraft spacing for single runway arrivals. On average, AVOSS provided spacing recommendations that were less than the current FAA prescribed spacing rules, resulting in a potential airport efficiency gain. Subsequent efforts have included quantifying the operational specifications for future Wake Vortex Advisory Systems (WakeVAS). In support of these efforts, each of the candidate subsystems for a WakeVAS must be specified. The specifications represent a consensus between the high-level requirements and the capabilities of the candidate technologies. This report documents the beginnings of an effort to quantify the capabilities of the AVOSS Prediction Algorithm (APA). Specifically, the APA horizontal position and circulation strength output sensitivity to the resolution of its wind and turbulence inputs is examined. The results of this analysis have implications for the requirements of the meteorological sensing and prediction systems comprising a WakeVAS implementation. Rutishauser, David K. and Butler, Patrick and Riggins, Jamie Langley Research Center NASA/TM-2004-213239, L-18383
Book Synopsis Metallography of U - 2 WT % Zr Alloy Before and After Irradiation by : Carl L. Angerman
Download or read book Metallography of U - 2 WT % Zr Alloy Before and After Irradiation written by Carl L. Angerman and published by . This book was released on 1961 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
