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

FIELD: aeronautical engineering. SUBSTANCE: aircraft includes triangular fuselage with cabin, engine plant, lifting airscrew mounted on shaft and located in through opening of central fuselage, tilt propeller mounted on shafts symmetrically on either side from lifting airscrew; each tilt propeller is mounted in circular shroud mounted on horizontal shaft and in respective through opening; besides that, aircraft is provided with drive for synchronous turn of above-mentioned shrouds from horizontal to vertical position, swivel stabilizers for maneuvering in horizontal direction at their synchronous turn about respective vertical axis; these stabilizers are located behind tilt propellers; engine plant is provided with turbines; one turbine is mounted in central opening and its shaft carries airscrew; other turbines are arranged in circular shrouds in side openings; they are mounted on axles-supports which ensure their turn from horizontal to vertical plane; their shafts carry tilt propellers. EFFECT: increased lifting force and speed; enhanced efficiency of control. 9 cl, 3 dwg