AIRCRAFT WING, AIRCRAFT WINGS CAISSON, CENTER WING, SPAR (VERSIONS) Russian patent published in 2019 - IPC B64C3/18 B64C3/22 B64C1/26 

FIELD: aviation.

SUBSTANCE: group of inventions relates to aircraft engineering. First version of the spar is characterized by that it is made as a front continuous three-span carrying beam of a caisson. Second version of the spar is characterized by that it is made as a rear beam along the wing span as a part of a longitudinal set of the caisson strength elements. Center wing section comprises structural frame composed of caisson assembled as integral part of fuselage and fitted in lower half of fuselage height, with which is overlapped by front end part of front and rear spars with end elements of power frames, made in form of flat plates adjacent on outer side to wall of spar. Caisson has box-like type of load-bearing frame and includes center section jointed with composite caisson of left and right wing consoles. Wing of aircraft is swept in plan and comprises bearing structure with frame in form of caisson, permanent cantilever parts, detachable parts and vertical tips. Tail edge of cantilever part has a planar fracture.

EFFECT: group of inventions is aimed at improving flight reliability and safety.

9 cl, 20 dwg