AIRCRAFT WING Russian patent published in 2017 - IPC B64C3/14 

FIELD: machine engineering.

SUBSTANCE: invention relates to aeronautical engineering. The wing is made with the wing aspect ratio of λ = 9-11, the taper h = 2,0-4,0 and the sweep X_1/4= 15-25^o. The leading wing edge viewed from above is rectilinear. The rear edge is made with the strake. The wing is made up of profiles with relative thicknesses in the on-board section, in the break section of the rear wing edge and in the end wing section. The value of the geometric wing twist is positive from the on-board section , and then negative till the wing end. The thickness distribution of the wing sections is characterized by the position of the maximum profile thickness in the area of 30-50% of the profile chord. The form of the upper wing sections is characterized by a long phase of the mild camber in the area of 20-50% of the profile chord and by the maximum ordinate position of the upper surface near the 45% of the profile chord.

EFFECT: invention is intented to reduce the resistance coefficient with the cruise speed at the Mach number range M = 0,78-0,8.

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