VERTICAL TAKEOFF AND LANDING AIRCRAFT Russian patent published in 2017 - IPC B64C29/00 

FIELD: aviation.

SUBSTANCE: vertical takeoff and landing aircraft contains a hull, power unit, lifting march propellers. The power plant consisting of two engines is located in the ends of the fuselage beams. Each engine has an independent transmission as a part of angular gears and torque transmission shafts to two pairs of coaxial lifting and moving propellers that are located longitudinally at the center of gravity of the fuselage and can create a vertical thrust exceeding the aircraft weight. The axis of the coaxial screws front pair rotation is tilted forward at an angle of -15° relative to the vertical plane YOZ, the axis of the coaxial screws rear pair rotation is located with a backward deflection at an angle of 15° from the horizontal plane XOZ and creates vertical traction by means of rotatable flaps that are capable of directing airflow from the coaxial screws rear pair or along the axis of rotation, or at an angle of 75° to the axis of rotation; i.e. vertically down.

EFFECT: exclusion of imbalance in thrust of propeller groups when one of the engines or transmission fails.

5 cl, 9 dwg