PLANAR NOZZLE WITH CENTRAL BODY Russian patent published in 2000 - IPC

FIELD: supersonic transport aeroplanes of low noisiness. SUBSTANCE: nozzle has central body with movable supercritical panels and fixed part, side walls and two external movable doors. Side walls of nozzle and end faces of central body are provided with ports at points of its fastening with side walls; these ports are used for communicating the inner cavity of body with atmosphere. Doors are connected to power cylinders. Fixed front part of central body is equipment with rows of adjustable air ejection units and cylindrical adapter-expulser. Leading edges of external doors are provided with swivel baffle plates for turbulization of outside boundary layers. EFFECT: reduced level of noise at takeoff of supersonic passenger second-generation aeroplanes. 6 cl, 7 dwg