HELICOPTER WITH FUSELAGE AND COMPOSITE TAIL BOOM Russian patent published in 2018 - IPC B64C27/04 B64C1/06 

FIELD: aircraft engineering.

SUBSTANCE: invention relates to aviation, in particular to the structure of the attachment points of tail beams to the helicopter fuselage. Composite tail boom comprises tubular cone (3b) of the tail boom and composite segment (7) of the attaching ring, which forms a mating surface. Mating surface is connected to the fuselage in suitable attachment module (6) by a plurality of clamping elements, which are oriented longitudinally with respect to the longitudinal direction of the extension of composite tail beam (3). Lot of clamping elements are located along the perimeter of composite segment (7) of the attaching ring. Composite segment (7) of the attaching ring comprises a clamping ring section with a plurality of clamping element locations. Clamping ring section forms the mating surface of composite segment (7) of the attaching ring, and a plurality of clamping elements are disposed in a plurality of clamping element locations.

EFFECT: improved performance and mechanical efficiency of the attachment.

15 cl, 8 dwg