Dunsfold declared inactive in 1946 but was used again in 1948 and 1949 as part of the Berlin Airlift. In 1950 The Hawker Aircraft Company acquired the lease of the site. In October 1960 the then Hawker Siddeley flight tested its Hawker P.1127 prototype, the development aircraft that led to the Hawker Siddeley Harrier, the first VTOL jet fighter bomber. Final assembly of the Harrier and the Hawk trainer aircraft was at Dunsfold. Hawker Siddeley became part of British Aerospace in 1977. On 2 July 1986 British Aerospace's deputy chief test pilot Jim Hawkins was killed at Dunsfold when his developmental
Hawker Siddeley Harrier AV-8A on the pre-existing production lines in the United Kingdom—hence all AV-8A Harriers were purchased from Hawker Siddeley. Improved Harrier versions with better sensors and more powerful engines were developed in later years. The USMC received 102 AV-8A and 8 TAV-8A Harriers between 1971 and 1976. The Harrier was typically used as a ground attack aircraft, though its manoeuvrability also allows it to effectively engage other aircraft at short ranges. The Harrier is powered by a single Pegasus turbofan engine mounted in the fuselage. The engine is fitted with two air intakes and four vectoring nozzles for directing the thrust