VERTICAL TAKE-OFF AND LANDING AEROPLANE Russian patent published in 1995 - IPC

FIELD: aeronautical engineering. SUBSTANCE: vertical take-off and landing aeroplane has two fuselages, three tandem airfoils and two fins. Secured on middle airfoil is lift-cruise power plant; thrust vector of this plant lies in plane of symmetry of aeroplane. At take-off and landing modes, power plant turns to vertical position and places in operation two tandem contra-rotating propellers. At hover mode, control in pitching and rolling is effected by inclining the propeller thrust vectors to different sides and in yawing, by differential change of propeller collective pitch. EFFECT: enhanced reliability. 3 dwg