Patent ID: 6966175

Claim:
A gas turbine engine exhaust nozzle comprising: an exhaust duct having an outlet at an aft end thereof for discharging exhaust flow, and including a row of radial apertures spaced upstream from said outlet; a radial frame extending circumferentially around said duct and spaced forward from said apertures; a plurality of flaps hinged at upstream ends thereof to said frame to selectively cover and uncover said apertures for controlling exhaust flow discharge therethrough, and each flap includes a cam follower affixed thereto; an arcuate unison bar mounted circumferentially around said duct adjacent to said frame, and including a plurality of cams spaced circumferentially apart in engagement with corresponding ones of said cam followers affixed to said flaps and an actuator joined to said bar for selectively rotating said bar in a first direction to pivot open said flaps, and in an opposite second direction to pivot closed said flaps to cover said apertures.