FIELD: transport.
SUBSTANCE: invention relates to rotorcraft, namely, to VTOL aircraft. Proposed aircraft comprises fuselage with tail boom and fin, two outer wings and two rotors arranged thereat and overlapped, said rotors being of rigid design. Power plant consists of two gas turbine engines built in outer wing root. Pull screw is arranged at fin front to create extra propulsion, horizontal fin being fitted thereat. Note here that pull screw axis us located in horizontal fin plane. Two gas-turbine engines are engaged via transmission elements: end reduction gears, transmission shafts and timing reduction gear with rotors and via timing reduction gear, end transmission shaft, intermediate reduction gear, transmission shaft and end reduction gear with pull screw. Note also that intermediate reduction gear is equipped with IN-OUT clutch on end transmission shaft side. Power plant can be equipped with third gas turbine engine to be mounted in tail boom.
EFFECT: higher efficiency and capacity.
3 cl, 3 dwg
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