FIELD: aviation.
SUBSTANCE: invention relates to the field of aviation, particularly to the rotorcrafts designs. Rotorcraft comprises fuselage including rotary tail beam, front and rear wings secured on fuselage, engine groups each including motor and propeller arranged in tricopter configuration. Two air screws are fixed on ends of front wing, one air screw is fixed on tail boom. Front and rear wings are made in tandem pattern, wherein value of wing carry-over is equal to -90 % to -400 % of average aerodynamic chord. Angle of installation of front and rear wings is from 2° to 10°. Fore wing extension is not less than 3, rear wing extension is not less than 4. Angle of front motors front engine rotor motors clearance is 10 to 45 degrees.
EFFECT: higher lift of aircraft.
7 cl, 4 dwg, 1 tbl
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