Flight test results of the F-15 SMTD thrust vectoring/thrust reversing exhaust nozzle

Many of the next generation fighter engines are being developed with advanced multi-function exhaust nozzles. The nozzles with new thrust vectoring and reversing capabilities will be used lo augment normal aerodynamic flight control effectors and to enhance rapid thrust response for flight maneuverability and short takeoff and landings. A significant evolution of nozzles will emerge from current practice and control system technology will evolve. to provide optimal management of the propulsion system.utilizing new capabilities as provided by the nozzle revolution. The flight test results presented in this paper demonstrates the first of many barriers that have to be overcome in order to realize the full contributions of future multi-function nozzles. The success to date of the F-15 SMTD aircraft with thrust vectoring and reversing nozzles has proven that these new and innovative control concepts are obtainable.