AIRCRAFT WING Russian patent published in 2016 - IPC B64C3/10 

FIELD: aircraft engineering.

SUBSTANCE: invention relates to aircraft engineering. Wing consists of a center wing section, a cantilever and required functional systems. Wing is made with elongation λ= 7-11, taper η= 3-4.5, sweep to X=35^o. Wing includes supercritical wing sections. Wing leading edge on top view is rectilinear and does not have front collar. Trailing edge is made with strake. Radii value of wing sections leading edges related to local chord is r_h ≤ 0.7 %, middle line of wing profiles shaped has a concaved section in the range of profile leading edge and up to 60% of the chord apart from end sections of the wing and bent in the tail part of the profile. Shape of the upper surface of the wing sections is characterized by prolonged section of the lesser curvature in the section of 30-60 % of the profile chord, and the position of maximum ordinate of the upper surface near the 40 % of the profile chord. Shape of the bottom surface of the profile is made with a section of strong curvature (trim) in the tail part of the profile.

EFFECT: invention is aimed at increase in aerodynamics and fuel efficiency at flight speeds of M_cruising= 0,84-0,86.

1 cl, 5 dwg