ROTORCRAFT Russian patent published in 2021 - IPC B64C27/06 B64C25/52 

FIELD: aviation.

SUBSTANCE: invention relates to the field of aviation, particularly to the rotorcrafts designs. Rotorcraft has a fuselage, a skid-type chassis, a bearing screw, a motor, a tail boom and a steering screw attached to the tail boom. Fuselage comprises transverse beam located in lower central part of fuselage, and vertical post, which by its lower end is attached to above transverse beam of fuselage. Chassis has one transverse post arranged on fuselage left side, and one transverse post located on fuselage right side. To one end of each of the above transverse racks of chassis is rigidly fixed on one chassis slide. Crosswise legs of chassis are articulated with ends of crosswise fuselage beam by one of their ends. Shock absorption is made in the form of at least one torsion bar. Each of said torsions by one of its ends is rigidly attached to one of ends corresponding to transverse rack of chassis, and other of its ends is rigidly attached to fuselage. Bearing screw is attached to the upper end of the vertical fuselage post.

EFFECT: reduced weight of structure of fuselage and chassis of helicopter, as well as increased aerodynamic quality of helicopter.

9 cl, 3 dwg