AIRCRAFT WING Russian patent published in 2019 - IPC B64C3/10 

FIELD: aviation.

SUBSTANCE: invention relates to subsonic aircraft wings. Aircraft wing consists of centre section and cantilever, extension elongation λ=7–12, sweep χ=10–35° and comprises supercritical profiles. When viewed from the top in range from 0 to 33 % of the span of the wing, the trailing edge is made with an influx and fracture, in area from 27 to 35 % of span of the wing the rear edge has a section of conjugation of sections of the centre section and the console, which is made with rounding. Relative thicknesses of wing profiles vary from 18 % in onboard section to 11–12 % in area of 27–35 % of its span and 8–9 % in end section of wing. Supercritical wing profiles are made with sections of small curvature in range of 20–75 % on upper surface and 25–60 on lower surface.

EFFECT: invention is aimed at increasing aerodynamic quality and improving fuel efficiency.

1 cl, 4 dwg