AS has often been iterated, the Harrier is a close support fighter with the facility for extremely short, or even zero, ground take-off runs. This facility is achieved by directing the jet efflux of the Rolls-Royce (Bristol Engine Division) Pegasus engine out of four rotating nozzles moving in symmetry, these rotating nozzles vectoring the engine thrust over 98½ deg. of movement from aft to forward of the vertical. The nozzles are rotated by shafting and chains, powered by an air motor, and controlled by a single lever in the cockpit. The complete system is termed the Engine Nozzle Actuation System, and pilot selection and air motor output comprise the input and error signals of a simple servo loop controlling engine nozzle position (Fig. 1).


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    Title :

    Powerplant: Nozzle Actuation System



    Publication date :

    1970-02-01


    Size :

    5 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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