MANEUVERABLE AEROPLANE AND METHOD OF ITS TAKEOFF Russian patent published in 1998 - IPC

FIELD: manufacture of MANEUVERABLE aeroplanes. SUBSTANCE: wing of aeroplane consists of center section made in form of load-bearing disk and swivel outer panels provided with separate drives. Axes of hinges of swivel outer panels coincide with transversal axis of aeroplane running through aerodynamic centers of outer panels of wing and aeroplane. Swivel outer panels have deflectable leading- edges with drives over entire span. Aeroplane is provided with aft segments formed by load-bearing disk and fuselage which are turnable. Aerodynamic seals made in form of stack of plates are located between disk of center section and swivel outer panels of wing. Deflectable leading-edges are connected with outputs of their drives whose inputs are connected with inputs of angle-of-attack sensors and outer panel turn angle sensors. Method of takeoff consists in deflecting both swivel outer panels through positive angle of attack at simultaneously deflecting the stabilizer through angle corresponding to angle of break-away of nose undercarriage leg. EFFECT: increased lifting force under transient conditions; enhanced efficiency of control at large angles of attack. 6 cl, 6 dwg