HOVERCRAFT Russian patent published in 2011 - IPC B60V1/08 

FIELD: transport.

SUBSTANCE: invention relates to air-cushion vehicles, namely, to hovercraft. Hovercraft has fuselage, wing centre section with outer wings, vertical and horizontal fins, power plant and take-off-landing device. Wing centre section with negative transverse installation angle and rear edge sweep forward. Floats are arranged on wing centre section ends. Outer wings are jointed with wing centre section on its rear edge side at positive crosswise angle. Power plant comprises at least one engine and one air propulsor made up of air screw in ring. Air screw shaft is articulated with relevant engine. Take-off-landing device comprise floats jointed with wing centre section to make twin-hull structure and at least one air screw in ring mounted ahead of wing centre section front edge. Said air screw in ring is equipped with mechanism of turning in vertical plane. Outer wings are provided with extensions jointed with wing centre section at transverse installation angle exceeding that of outer wings. Floats are provided with at least two lateral planing steps. Load on float width C_B=Go/(N*g*ρ*B³)≤2.5, where Go is hovercraft take-off weight, N is number of floats, g is free fall acceleration, ρ is water density, and B is float width relative to planing step.

EFFECT: reduced take-off run.

7 cl, 13 dwg