AIRCRAFT WING Russian patent published in 2013 - IPC B64C3/10 

FIELD: transport.

SUBSTANCE: invention relates to aircraft engineering. Aircraft wing consists of center wing section and outer wing. Said wing features aspect ratio λ=9.6…10.5, taper η=3.5…4.0 and sweep χ=25…30°. Leading and trailing edges on top view are straight. Wing trailing edge is rounded at section of 30-50% of wing span. Magnitude of wing airfoil leading edges radii related to local chord equals r_E≥0.,9%. Distribution of thickness on airfoil cross-sections features the position of maximum thickness at the section of 30-50% of airfoil chord increased to C_70%>7% of tail airfoil thickness chord. Center line of wing airfoils has concave section extending from airfoil leading edge and to 60% of chord apart from wing trailing edges.

EFFECT: higher lift.

8 dwg