Hawker Siddeley P.1127 GR.1" designation. The Harrier went on to become a successful aircraft in British service, and was exported to several nations, often seeing usage as a carrier-based aircraft. The P.1127/Kestrel was an experimental V/STOL aircraft, which served as the forerunner for the production of the Hawker Siddeley Harrier and the wider Harrier Jump Jet family. It served to demonstrate an entirely original technique of flight, as well as to trial a brand new type of engine in the form of the Pegasus turbofan engine. Despite this, the aircraft employed a principally conventional structure which, according to Mason, lent itself favourably to
Joint Force Harrier combined the Royal Navy's two Sea Harrier FA2 squadrons with the RAF's four Harrier GR7/7A squadrons under a single command structure within RAF Strike Command. This force was to be deployable from both "Invincible" class aircraft carriers, Royal Air Force stations and deployed air bases. The Royal Navy's contribution to the force was the Sea Harrier previously part of Naval Air Command. . In 2006, No. 3 Squadron RAF converted to the Eurofighter Typhoon. In the same year, the Sea Harrier was retired and 800 Naval Air Squadron re-equipped with former 3 Squadron Harrier GR7 and GR9 aircraft. At the