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Summary

Description
English: Wake Vortex Study at Wallops Island
The air flow from the wing of this agricultural plane is made visible by a technique that uses colored smoke rising from the ground. The swirl at the wingtip traces the aircraft's wake vortex, which exerts a powerful influence on the flow field behind the plane. Because of wake vortex, the Federal Aviation Administration (FAA) requires aircraft to maintain set distances behind each other when they land. A joint NASA-FAA program aimed at boosting airport capacity, however, is aimed at determining conditions under which planes may fly closer together. NASA researchers are studying wake vortex with a variety of tools, from supercomputers, to wind tunnels, to actual flight tests in research aircraft. Their goal is to fully understand the phenomenon, then use that knowledge to create an automated system that could predict changing wake vortex conditions at airports. Pilots already know, for example, that they have to worry less about wake vortex in rough weather because windy conditions cause them to dissipate more rapidly.
Date
Source
This image or video was catalogued by Langley Research Center of the United States National Aeronautics and Space Administration (NASA) under Photo ID: EL-1996-00130 and Alternate ID: L90-5919.

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Author NASA Langley Research Center (NASA-LaRC), Edited by Fir0002
Permission
( Reusing this file)		 Public domain ( see below)
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Recognition

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 With an aspect ratio of 4:3 or 5:4, this image is suitable as a computer wallpaper (see gallery).
Wikipedia
 This is a featured picture on the English language Wikipedia ( Featured pictures) and is considered one of the finest images. See its nomination here.
 This is a featured picture on the Persian language Wikipedia ( نگاره‌های برگزیده) and is considered one of the finest images. See its nomination here.
 This is a featured picture on the Hebrew language Wikipedia ( תמונות מומלצות) and is considered one of the finest images. See its nomination here.
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Licensing

Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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Information

Captions

Wake Turbulence study at Wallops Island in 1990

Items portrayed in this file

depicts

vortex

inception

4 May 1990

media type

image/jpeg

checksum

4f66cf0c964e30f1c5762a5f3794c02e59fbf0e9

determination method or standard: SHA-1

data size

1,019,152 byte

height

2,420 pixel

width

2,976 pixel

File history

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Date/TimeThumbnailDimensionsUserComment
current 06:45, 4 January 2006 Thumbnail for version as of 06:45, 4 January 20062,976 × 2,420 (995 KB) Fir0002;Date: 05.04.1990 ;Title: Wake Vortex Study at Wallops Island ;Description: The air flow from the wing of this agricultural plane is made by a technique that uses colored smoke rising from the ground. The swirl at the wingtip traces the aircraft's wake vo

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