SPEED SWEPT WING Russian patent published in 2004 - IPC

FIELD: aeronautical engineering. SUBSTANCE: proposed wing is formed as single spatial system on base of non-planar median surface having S-shaped form of center lines in side sections at negative concavity in tail sections at and positive concavity f=0.015-0.02 at at shift from side sections over span, negative concavity gradually disappears and positions of maximum positive concavity gradually shift backward over chord from at side to in tip sections. Maximum relative thicknesses of profiles are located at and upper generatrices of profiles are so positioned that at rated modes maximum rarefaction does not exceed maximum permissible magnitude and angles of inclination of upper surface at trailing edge do not exceed 7 deg. EFFECT: increased operating speeds and maximum balancing aerodynamic property of wing. 9 dwg