The Rolls-Royce Pegasus is a British turbofan engine renowned for its revolutionary vectored thrust technology, enabling the Hawker Siddeley Harrier series of vertical/short takeoff and landing (V/STOL) aircraft. Introduced in the 1960s, the Pegasus features four swivelling nozzles that direct exhaust gases downward for vertical lift and rearward for conventional flight, allowing for unique manoeuvrability and the ability to operate from short runways and even from small aircraft carriers. With a thrust output of up to 106 kN, the Pegasus provided the Harrier with exceptional versatility and performance, making it a key component in the aircraft’s groundbreaking design and operational success.