WING-IN-GROUND EFFECT CRAFT Russian patent published in 2004 - IPC

FIELD: transport engineering; wing-in-ground effect craft.

SUBSTANCE: proposed wing-in-ground effect craft has hull with upper high-aspect ratio wing rectangular in plan, with leading edge slats, slotted flaps and ailerons with flat lower surface symmetrical relative to diametric plane of wing-in-ground effect craft. Wing-in ground effect craft has lower low-set low-aspect ratio wing with flat lower surface rectangular in plan, with flaps and side extensions in form of displacement floats-skegs. Distance between upper and lower wings in height exceeds chord of upper wing. Wing-in-ground effect craft is provided with vertical and horizontal control surfaces, cruise engines and control system. Cruise engines are of tractor-type, third wing located in nose part of wing-in-ground effect craft consists of two aerodynamic cantilever wings with angle of attack, sweepback of leading edge, with leading edge slats and ailerons-flaps. Cantilever wings of third wing are provided with aerodynamic vanes on ends in form of vertical plates. Upper wing can be made with aerodynamic vanes on ends in form of vertical plates and with aspect ratio λ<8. Lower wing can have aspect ratio λ >1, and its flat lower surface can have angle of attack with support underlying surface.

EFFECT: improved performance of wing-in-ground effect craft.

2 cl, 3 dwg