HIGH-SPEED HYBRID HELICOPTER-AIRCRAFT Russian patent published in 2018 - IPC B64C27/22 B64C27/10 

FIELD: aircraft engineering.

SUBSTANCE: invention relates to aviation technology, in particular to the construction of hybrid helicopters. High-speed hybrid helicopter-aircraft is made on a two-screw coaxial scheme, has a power unit (PU), transmitting torque effect through the main reducer and the transmission shaft system to the main rotors and rear screw, respectively mounted above the axis of mass and at the end of the tail boom. High-speed hybrid helicopter-aircraft is equipped with two systems with various screws: propulsion-steering and two-screw coaxial bearing. Two-screw coaxial bearing screw includes a pair with opposite rotation of single-lobe large rotor screws with profiled telescopic counterweights, which ensure the creation of vertical thrust only with RW and STOL. Propulsion-steering screw includes pushing screws, mounted in the rear annular channels both for creating control moments in the performance of RW and hovering, and the flywheel with a high-speed horizontal flight and fixed two blades of the upper and lower coaxial rotor screws.

EFFECT: increased payload, increased speed and range of flight, reduced vibration and eliminates the emergence of resonance when using stop and not removed in-flight rotor blades are provided.

5 cl, 1 tbl, 1 dwg