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This is a featured picture, which means that members of the community have identified it as one of the finest images on the English Wikipedia, adding significantly to its accompanying article. If you have a different image of similar quality, be sure to upload it using the proper free license tag, add it to a relevant article, and nominate it. |
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This image was selected as picture of the day on the English Wikipedia for May 2, 2006. |
| 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.
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| Date |
4 May 1990 |
| Source |
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This image or video was catalogued by Langley Research Centre of the United States National Aeronautics and Space Administration (NASA) under Photo ID: EL-1996-00130 AND Alternate ID: L90-5919.
This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing for more information.
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| Author |
NASA Langley Research Centre (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).
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Licensing information
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This file is in the public domain 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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File usage
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