UNMANNED ROTORCRAFT WITH CROSS-SECTION PROPELLERS Russian patent published in 2017 - IPC B64C27/22 B64C39/02 

FIELD: aviation.

SUBSTANCE: unmanned rotorcraft with crossed propellers (URCP) is made with two-bladed screws, has on the top of the fuselage the engine that transmits torque through the main reducer to the transverse rotor screws mounted on long shafts, contains vertical tail and a three-wheel retractable wheel chassis. The URCP is designed with a propulsion system based on the concept of distributed traction of criss-cross propellers (DTCP), arranged in accordance with the DTCP-X2+2 scheme in two transverse two-screw modules at the ends of the wing. The modules contain a variety of screws mounted on each pivot sector, a pylon mounted in the front longitudinal semi-circular aperture of the teardrop fairing on the wing tip. URCP is equipped with a reducer with an upper arrangement of V-shaped output shafts located at an angle of 30° Between them. The smaller and larger propellers are located above the wing in the upper hemisphere in the first and second quadrants and have the possibility of deflection parallel to the symmetry plane forward and backward.

EFFECT: increase in the weight return, reduction of the required power for the road balance during hovering and improvement of transverse and longitudinal controllability.

2 cl, 1 dwg