AIRCRAFT WING Russian patent published in 2018 - IPC B64C3/10 

FIELD: aircraft engineering.

SUBSTANCE: invention relates to aircraft engineering. Wing of the aircraft consists of a centroplane, a console and the necessary functional systems, made with aspect ratio λ=7–11, taper ratio η=3–4.5 and sweep χ=28–35°, and contains supercritical profiles with increased radii of leading edges. Wing profiles in the range from 0 to 40 % have an area on the leading edge increased by 10–20 % and the length of the end sections of the profiles increased by 1–3 % relative to the profile, located 43 % in the span of the wing. Value of the radii of the wing profile leading edges referred to the local chord is r_l.≥1.5 %. Relative thickness of the profiles has a value of approx. 14 % in the side section and decreases to 9 % in the section from 65 % of the span of the wing and to its end.

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

1 cl, 4 dwg