MULTIROTOR HIGH-SPEED HELICOPTER-AIRCRAFT Russian patent published in 2018 - IPC B64C27/24 

FIELD: aviation.

SUBSTANCE: invention relates to aircraft engineering, particularly to rotorcraft. Multirotor high-speed helicopter-aircraft is made on a two-rotor longitudinal scheme, it contains a power unit in the stern fuselage including engines that transmit torque through the main reducer and the system of transmission shafts to the bearing front and rear rotors and pushing rotors. Co-axial load-bearing systems include single-lobe bearing rotors (BR) with sculpted counterweights and the opposite free rotation of them. Two-rotor propulsion system has two gondolas with reducers of tractor rotors to create a thrust for high-speed horizontal flight with fixed wing blades of BR. BRs are located above the center and rear high wing sweeps of the reverse sweep, equipped with the possibility of synchronous rotation of their consoles, respectively, forward and backward in flight while parking on the ground.

EFFECT: provides a reduction in vibration and the elimination of the emergence of resonance with the use of stopped and not cleaned in flight wing rotors, simplification of longitudinal-lateral controllability.

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