| Added | Fri, 07/10/2016 |
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Limited the scope of the perturbed gaseous environment arising from the movement in her body. For example, the area of disturbed air in the form of vortices, breaking away from the wingtips of an airplane. Each vortex is formed due to the tendency of air to flow from region of high pressure (under the wing) to an area of low pressure (above the wing). Although the vortices fade out very quickly (about 5 minutes), but still behind a heavy aircraft, they can stretch for miles. Among the clouds, this area becomes visible, forming a transparent strip, sometimes called "reverse" or "negative" trail. The cloud or part of it takes the form of a twist.
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Concurrent track during training flights of the Tu-160, Tu-95MS and Tu-22M3
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Trail of Wake turbulence, vortical flows over the aircraft.
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Wake turbulence trail that passes through the translucent haze of the cloud, forming the "empty" area and creates the illusion of a black band.
Excerpt: 1/533 sec
F-number: 2.2
ISO: 32
Flash: no flash
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This 29-second video, shot in the 1970-ies, shows the C-5A, demonstrating for the study of vortex flows in wing NASA Research center in Langley, HAMPTON, Virginia.
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