FIELD: aviation.
SUBSTANCE: invention relates to the field of aviation, in particular to the designs of rotary-wing aircraft. A helicopter with two main propellers contains a fuselage, a power plant with a gearbox. The power plant with a gearbox is located at the bottom of the fuselage. Two rotors rotate in the same direction around a common axis. The tips of the blades of the upper and lower propellers are mechanically connected in pairs. The blade turning rods of the upper and lower rotors are mechanically connected to a common swashplate. The reactive moment of the rotors is balanced by aerodynamic compensators in the form of two wings located vertically along the longitudinal axis of the helicopter in the area of rotation of the main rotors. The compensators are mounted pivotally with the possibility of their synchronous rotation using control wiring to rotate the helicopter around the vertical axis.
EFFECT: reduced dimensions of the helicopter, exclusion of flutter and overlap of rotor blades.
1 cl
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