FIELD: transport.
SUBSTANCE: invention relates to production of helicopters. Proposed rotorcraft represents a triple-screw craft with two screws in rotary annular channels arranged at tail boom end and main rotor with blade ends bent opposite the rotor rotational direction. Rotorcraft is equipped with two gas turbine engines transmitting torque via reduction gearbox and system of transmission coupling shafts to main rotor and lower screws, gas-jet rudders of airway control, and tricycle-equipped landing gear. Rotorcraft design allows transforming triple-screw craft with different rotors into autogiro with separate bearing system composed of rotor and wing and propulsion system with rear screws, and into rotorcraft with propulsion-bearing and propulsion systems consisting of front rotor and two screws at boom end, respectively.
EFFECT: increased load ratio and better controllability.
3 dwg
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