VERTICAL TAKE-OFF AND LANDING AMPHIBIAN AEROPLANE Russian patent published in 1999 - IPC

FIELD: aircraft manufacture; designing of new multi-functional flying vehicle. SUBSTANCE: amphibian aeroplane has fuselage with wings, propulsors with horizontal blades and engine; two streamlined keel superstructures are mounted above fuselage in nose and tail sections. Each superstructure has two built-in reduction gears of propulsors. These reduction gears have working bevel gears fitted on inner end-pieces of blade axles. Bevel gears are kinematically linked with non-revolving sun bevel gear at total ratio of 2:1 by means of two bevel gears and satellite shaft. Non-revolving bevel sun gear is fitted on axle braked by means of worm reduction gear connected with output shaft of remotely controlled reversible drive. Blades may perform cycloid trajectory of motion in air flow. Outer trunnions of blade axles of each propulsor may be fitted in bearing combined by circular streamlined cage. Aeroplane may be provided with additional engine; engines may be interconnected by means of longitudinal shaft with end couplings. EFFECT: improved operational characteristics of aeroplane. 4 cl, 13 dwg