AIRCRAFT Russian patent published in 1997 - IPC

FIELD: aeronautical engineering; manufacture of subsonic passenger and transport aeroplanes. SUBSTANCE: destabilizing wings of aircraft with airfoil profile of negative camber changing into positive camber by linear law along 25 to 40 percent of span and angle of setting relative to fuselage center line from 0 to -3 deg; their relative area ranges from 2.2 to 6.8 percent of wing area; wing aspect ratio from 5 to 7; taper ratio form 2.5 to 3.5 and airfoil thickness ratio from 6 to 12 percent. EFFECT: enhanced reliability. 5 dwg