MULTIROTOR UNMANNED HIGH-SPEED HELICOPTER Russian patent published in 2016 - IPC B64C27/22 

FIELD: aircraft engineering.

SUBSTANCE: invention relates to aircraft engineering, particularly to multirotor unmanned high-speed helicopters. Multirotor unmanned high-speed helicopter (MUHSH) is made with crossed two-blade rotors, on the fuselage top part possesses a turboshaft engine to transmit the torque via the main reduction gear to main rotors mounted on long shafts inclined at the angles of 12,5° from the vertical back and forth and closed with fairings. MUHSH contains vertical fins having fin-washers at the end of the stabilizer and tricycle nonretractable wheel chassis, an additional fin forming with the swept stabilizer underfuselage T-shaped fins. MUHSH is provided with the possibility of conversion of its flight configuration from the four-rotor lengthwise rotorcraft into the flight configuration of the five-rotor rotorcraft. Transmission system transmits the take-off power from the two turboshaft engines arranged in the aft fuselage to the anterior and the posterior groups of main rotors.

EFFECT: provided are increased payload, reduced power for the track balancing in hovering, improved transverse and longitudinal controllability.

1 cl, 1 dwg, 1 tbl