MULTI-PURPOSE HIGH-SPEED HELICOPTER AIRCRAFT Russian patent published in 2018 - IPC B64C27/30 B64C27/615 

FIELD: aviation.

SUBSTANCE: invention relates to the field of aircraft engineering, in particular to the designs of rotorcrafts. Multipurpose high-speed airplane-helicopter (MHAH) contains a low-lying wing, power plant with jet engines at the ends and at the sides of the fuselage and engines at the ends of the wing in the nacelle, equipped with pylons with helicopter main rotor above them, has a T-shaped tail unit and a three-wheel retractable wheel chassis. MHAH is equipped with the said two-screw transverse carrier system (TSTCS), which includes two single-lobe helicopter main rotors with profiled counterweights and two pairs of coupled turbojet two-loop engines in propulsion-steering system (PSS) in TSTCS-X2, both for the creation of control moments for the course when VTOL and hovering, as well as for horizontal propulsion during horizontal cruise flight with fixed blades-wings helicopter main rotor. Columns of shafts and blades of helicopter main rotor are assembled and laid closer to the front ends and inside along the longitudinal axis of the over-winged nacelle, having on top internal and external opening flaps, deflected downwards, installed vertically after their opening and ensuring thereafter free rotation of single-lobe HBs with their counterweights.

EFFECT: improved longitudinal handling, increased cruise speed and range.

3 cl, 1 dwg, 1 tbl