Patent ID: 7975466

Claim:
An exhaust nozzle for a gas turbine engine capable of vectoring a flow of exhaust gases issuing therefrom at an angle to a centre line of the engine, the exhaust nozzle comprising a plurality of radially outer and radially inner flaps circumferentially disposed around the engine, the radially outer and radially inner flaps overlapping each other alternately to define a flow path through which the exhaust gases flow, means for moving the radially outer flaps asymmetrically about the engine centre line being provided, the radially inner flaps being urged into sealing contact with the radially outer flaps by the exhaust gas flowing through the nozzle, each of the radially inner flaps being divided into a plurality of triangular sections, so it is torsionally flexible so as to allow it to twist along its length, whereby sealing contact is maintained with the radially outer flaps when the radially outer flaps are moved asymmetrically.