AIRCRAFT TWO COAXIAL ROTORS SYSTEM Russian patent published in 2018 - IPC B64C27/54 B64C27/10 

FIELD: aviation.

SUBSTANCE: invention relates to the aircraft engineering, in particular, to design of the rotorcraft flight structure with coaxial rotors. Helicopter two coaxial rotors system includes gearbox, two rotating in the opposite directions coaxial rotors, each of the rotors control circuits, including two swash plates and the rotors collective pitch and differential pitch control mechanism. Two rigid coaxial rotors blades are controlled by two kinematically unrelated swash plates, so, that as the horizontal flight speed increases, the angles of attack on the upper and lower rotors advancing blades increase, on which the necessary lifting force is created, and the angles of attack on the retreating blades decrease, where the lifting force development is excluded.

EFFECT: enabling reduction in energy costs for the rotors rotation at high flight speeds.

1 cl, 1 dwg