FLYING VEHICLE Russian patent published in 1999 - IPC

FIELD: vertical take-off and landing aeroplanes. SUBSTANCE: flying vehicle has casing, horizontal thrust engine and lifting devices which create lifting force by means of engine. lifting devices are located in horizontal plane symmetrically relative to longitudinal axis of casing. According to invention, each lifting device is made in form of two pairs of drive coaxial wings having form of sectors turning in synchronism in opposite directions. Area of these sectors is less than quarter of are of generating circle. Axes of rotation of sectors pass through centers of generating circles; axes of rotation of both pairs of wings are perpendicular to each other. EFFECT: increased load ratio and flying speed; reduction of transversal size of vehicle. 5 dwg