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Ekranoplan A-90 Orlyonok. A ground-effect vehicle (GEV), also called a wing-in-ground-effect (WIGE or WIG), ground-effect craft/machine (GEM), wingship, flarecraft, surface effect vehicle or ekranoplan (Russian: экранопла́н – "screenglider"), is a vehicle that is able to move over the surface by gaining support from the reactions of the air against the surface of the earth or water.
The lower/nearer the wing is to the ground, the more pronounced the ground effect becomes. While in the ground effect, the wing requires a lower angle of attack to produce the same amount of lift. In wind tunnel tests, in which the angle of attack and airspeed remain constant, an increase in the lift coefficient ensues, [ 9 ] which accounts for ...
DXF100 - 15 seater wing-in-ground effect craft, designed by China Academy of Science & Technology Development.In 2000, the model is for commercial sale in China. The first buyer of Tianyi-1 used the vehicle to carry tourists around Lake Tai.
The wings droop downward in their outer sections to enhance ground effect, also having a slight backward sweep in the leading edge and forward sweep in the trailing edge. To let the aircraft change shape for different types of operations, the wings are hinged within the drooping sections, and the axis of rotation is parallel to the fuselage.
In 1956, Robert Ludvigovich Bartini approached the Beriev design bureau with a proposal for a Wing-In-Ground-effect vehicle (WIG). The Be-1 became the first experimental prototype, used for exploring the stability and control of wing-in-ground-effect aircraft.
The X-113 was an inverse delta aircraft; that is, it had a wing which was triangular in plan but with a straight, unswept leading edge. [1] Combined with strong anhedral, this layout produces stable flight in ground effect. [2]
In car design, ground effect is a series of effects which have been exploited in automotive aerodynamics to create downforce, particularly in racing cars. This has been the successor to the earlier dominant aerodynamic focus on streamlining .
The RFB X-114 Aerofoil Craft was an experimental ground-effect vehicle intended to work over water, with the ability to fly out of ground effect when required. It was the last of three such aircraft designed by Alexander Lippisch in the 1960s and early 1970s.