VERTICAL TAKE-OFF AND LANDING AIRCRAFT Russian patent published in 2014 - IPC B64C29/00 

FIELD: transport.

SUBSTANCE: invention relates to aircraft, specifically to vertical take-off and landing aircrafts. The aircraft contains body frame of round shape or in the form of ellipse with convex top surface and flat bottom surface, with protruding down its central part. In the central part, cabin with control system and power compartment are located. At least four engines transmitting rotation to six fans via transmissions are installed in engine compartment. Four helical fans are installed in vertical oval through holes of body frame, and two helical fans are installed at front and rear ends of aircraft. Minor axes of symmetry of two holes are located along longitudinal axis of symmetry of body frame, and of two other holes - along transversal axis of symmetry of body frame. Inside the mentioned holes, swivelling axes made of tubes are installed along their minor axes of symmetry. All helical air fans are capable to change common pitch both together and separately.

EFFECT: increase in aircraft loadlifting capacity while maintaining high level of flight safety.

2 dwg