AIRCRAFT WING Russian patent published in 2015 - IPC B64C3/10 

FIELD: aircraft engineering.

SUBSTANCE: aircraft wing consists of centre-section and outer wing and features elongation λ=7-11, taper η=3-4.5, sweep χ=25-40° and includes supercritical wing sections. Wing leading edge is rectangular in top view. Wing trailing edge features strake while radii of wing section tips related to local chord r_t≤0.8%. Shape of the sing section top surface features section of minor curvature making some 30-50% of profile cord and is defined by relationship Y_t.s./Y_t.s.max.≥0.75 and by position of maximum y-coordinate of top surface in the range of 35-45% of chord profile. Shape of the profile bottom surface features trim of the profile trailing part.

EFFECT: better aerodynamics and fuel efficiency at high subsonic speeds.

5 dwg