WING-IN-GROUND EFFECT CRAFT Russian patent published in 1999 - IPC

FIELD: transport facilities; design and construction of wing-in-ground-effect craft. SUBSTANCE: wing-in-ground-effect craft has fuselage with top and lower wings provided with on-board washers located in biplane layout, vertical and horizontal tails, booster and cruise engines and control system; top wing is made at aspect of λ≥5.. Wing has swee-back of leading edge, state and slotted flaps. Lower wing is made at aspect ratio of λ≤1,5; lower wing is rectangular in plan, with flat lower surface; lower wing is provided with flaps. On board washers of lower wing are made in form of floats-skegs. Distance between top and lower wings exceeds chord of top wing. Booster engine of such craft may be located inside nose section of fuselage and may be provided with exhaust gas ducts-nozzles for directing gas jets under lower wing and forming booster air cushion. EFFECT: improved performance characteristics through increase of profitableness and enhanced economical efficiency. 2 cl, 3 dwg