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06 Mart 2008 19:16:43
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A Wing In Ground-effect vehicle (WIG), is a vehicle that cruises little more than a few feet over flat surfaces, most often water. It can be seen as a transition between a hovercraft and an aircraft. As it flies just above a surface, it is also classified as WISE or WISES (Wing In Surface Effect Ship). WIGs are also classified as Ground Effect Vehicles, or Sea Skimmers. The IMO has classifed the WIGs as ship, with effect of (GEV).[1] In conventional aircraft, "flare" is the rotation of the aircraft's nose up, used at the final part of landing to arrest the descent rate before touch down. In WIG vehicles, this is the basic attitude to sustain level flight.

See also:

http://en.wikipedia.org/wiki/Wing-In-Ground_effect_vehicle