Response Of Aircraft Encountering Aircraft Wake Turbulence

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Response of Aircraft Encountering Aircraft Wake Turbulence

Robert C. Nelson
Response of Aircraft Encountering Aircraft Wake Turbulence Book PDF

Author : Robert C. Nelson
Publisher : Unknown
Page : 144 pages
File Size : 55,5 Mb
Release : 1974
Category : Aerodynamics
ISBN : UOM:39015095318583

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Response of Aircraft Encountering Aircraft Wake Turbulence by Robert C. Nelson Pdf

The investigation deals with the dynamic behavior of an airplane encountering aircraft wake turbulence. A digital computer simulation was developed to study the response of an aircraft flying into a trailing vortex wake. The simulation includes the complete six degree of freedom equations of motion, a description of the vortex velocity field, unsteady aerodynamics, and pilot control input. The parameters included the penetration angle, separation distance, aircraft size, and pilot control input. Predicted vortex induced motions are presented for general aviation, business, and light jet transport type aircraft.

Wake Turbulence

United States. Federal Aviation Administration
Wake Turbulence Book PDF

Author : United States. Federal Aviation Administration
Publisher : Unknown
Page : 20 pages
File Size : 44,7 Mb
Release : 1971
Category : Turbulence
ISBN : MINN:31951D03560068Y

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Wake Turbulence by United States. Federal Aviation Administration Pdf

Aircraft Wake Turbulence and Its Detection

John Olsen
Aircraft Wake Turbulence and Its Detection Book PDF

Author : John Olsen
Publisher : Springer Science & Business Media
Page : 599 pages
File Size : 54,8 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9781468483468

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Aircraft Wake Turbulence and Its Detection by John Olsen Pdf

The combination of increasing airport congestion and the ad vent of large transports has caused increased interest in aircraft wake turbulence. A quantitative understanding of the interaction between an aircraft and the vortex wake of a preceding aircraft is necessary for planning future high density air traffic patterns and control systems. The nature of the interaction depends on both the characteristics of the following aircraft and the characteristics of the wake. Some of the questions to be answered are: What deter mines the full characteristics of the vortex wake? What properties of the following aircraft are important? What is the role of pilot response? How are the wake characteristics related to the genera ting aircraft parameters? How does the wake disintegrate and where? Many of these questions were addressed at this first Aircraft Wake Turbulence Symposium sponsored by the Air Force Office of Sci entific Research and The Boeing Company. Workers engaged in aero dynamic research, airport operations, and instrument development came from several count ries to present their results and exchange information. The new results from the meeting provide a current picture of the state of the knowledge on vortex wakes and their interactions with other aircraft. Phenomena previously regarded as mere curiosities have emerged as important tools for understanding or controlling vortex wakes. The new types of instability occurring within the wake may one day be used for promoting early dis integration of the hazardous twin vortex structure.

Wake Turbulence

National Research Council,Division on Engineering and Physical Sciences,Aeronautics and Space Engineering Board,Committee to Conduct an Independent Assessment of the Nation's Wake Turbulence Research and Development Program
Wake Turbulence Book PDF

Author : National Research Council,Division on Engineering and Physical Sciences,Aeronautics and Space Engineering Board,Committee to Conduct an Independent Assessment of the Nation's Wake Turbulence Research and Development Program
Publisher : National Academies Press
Page : 106 pages
File Size : 42,5 Mb
Release : 2008-04-27
Category : Science
ISBN : 0309113792

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Wake Turbulence by National Research Council,Division on Engineering and Physical Sciences,Aeronautics and Space Engineering Board,Committee to Conduct an Independent Assessment of the Nation's Wake Turbulence Research and Development Program Pdf

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.

Wake Turbulence Training Aid

Anonim
Wake Turbulence Training Aid Book PDF

Author : Anonim
Publisher : Unknown
Page : 454 pages
File Size : 46,5 Mb
Release : 1995
Category : Air pilots
ISBN : UCSD:31822021944756

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Wake Turbulence Training Aid by Anonim Pdf

Exploratory Flight Investigation of Aircraft Response to the Wing Vortex Wake Generated by Jet Transport Aircraft

William H. Andrews
Exploratory Flight Investigation of Aircraft Response to the Wing Vortex Wake Generated by Jet Transport Aircraft Book PDF

Author : William H. Andrews
Publisher : Unknown
Page : 44 pages
File Size : 48,6 Mb
Release : 1972
Category : Aerodynamics
ISBN : UIUC:30112106882951

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Exploratory Flight Investigation of Aircraft Response to the Wing Vortex Wake Generated by Jet Transport Aircraft by William H. Andrews Pdf

The effect of intercepting wing tip vortices generated by large jet transports, including jumbo jets, over separation distances from 1 nautical mile to 15 nautical miles is evaluated on the basis of the response of a vortex probe airplane in the roil mode. The vortex probe test aircraft included a representative general aviation airplane, an executive jet, a fighter, and light and medium weight jet transports. The test conditions and airplane configurations were comparable to those normally used during takeoff, landing, or holding pattern operations. For flight safety the tests were performed at altitudes from 9500 feet to 12,500 feet. In addition to an evaluation of the probe airplane response, a flight test technique is suggested for determining minimum separation distance, using as variable the ratio of vortex-induced roll acceleration to maximum lateral control acceleration and the gross weight of the generating aircraft.

Aircraft Accident Report

Anonim
Aircraft Accident Report Book PDF

Author : Anonim
Publisher : Unknown
Page : 216 pages
File Size : 49,7 Mb
Release : 2024-07-02
Category : Aircraft accidents
ISBN : NWU:35556034533950

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Aircraft Accident Report by Anonim Pdf

Application of FAA Wake Vortex Research to Safety

United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Technology, Environment, and Aviation
Application of FAA Wake Vortex Research to Safety Book PDF

Author : United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Technology, Environment, and Aviation
Publisher : Unknown
Page : 300 pages
File Size : 50,7 Mb
Release : 1995
Category : Science
ISBN : PSU:000023481381

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Application of FAA Wake Vortex Research to Safety by United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Technology, Environment, and Aviation Pdf

Distributed to some depository libraries in microfiche.

Evaluation of Effects of High-altitude Turbulence Encounters on the XB-70 Airplane

Ronald J. Wilson,Betty J. Love,Richard R. Larson
Evaluation of Effects of High altitude Turbulence Encounters on the XB 70 Airplane Book PDF

Author : Ronald J. Wilson,Betty J. Love,Richard R. Larson
Publisher : Unknown
Page : 92 pages
File Size : 45,8 Mb
Release : 1971
Category : Atmospheric turbulence
ISBN : UIUC:30112106640003

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Evaluation of Effects of High-altitude Turbulence Encounters on the XB-70 Airplane by Ronald J. Wilson,Betty J. Love,Richard R. Larson Pdf

A turbulence response investigation was conducted with the XB-70 airplane. No special turbulence penetration techniques, speeds, or other restrictions were specified for the investigation, nor were any flights made solely to obtain turbulence data. During 79 flights, turbulence was encountered, and recorded on a VGH recorder, 6.2 percent of the total flight distance at supersonic speeds above an altitude of 12,192 meters (40,000 feet). Geographical locations are given for selected turbulence encounters. For 22 flights the airplane was instrumented to measure true gust velocities and the structural acceleration response to turbulence. The turbulence intensities measured were very low in comparison with those measured at high altitudes in other investigations. Acceleration response spectra, frequency response transfer functions, and coherence functions were computed from three turbulence encounters at Mach numbers of 0.88, 1. 59, and 2.35. Results are compared with calculated studies. Frequencies from the vertical and lateral structural modes, dominant in the airplane acceleration responses, were compared with the natural frequencies of the human body in the vertical and lateral directions.