Design of the Vampire began in 1941, its twin-boom layout chosen to minimise the length of the jet tailpipe, and hence the power losses from the primitive jet engines then under development. The type entered squadron service in 1946, eventually equipping several Fighter Command first-line home defence squadrons. However, with the introduction of the FB5 the role of the Vampire changed from an interceptor fighter to a close-support ground attack fighter-bomber, and this variant became the most common in RAF service, many squadrons being stationed in Germany with the 2nd Tactical Air Force. Produced as a successor to the Vampire, the Venom was a completely new design based around the superior Ghost engine, and received much praise for its excellent rate of climb and good manoeuvrability at high altitudes. Both the Vampire and the Venom saw wide squadron service, and were adapted to night-fighter, trainer and naval versions. Their reliable all-round performance and capabilities attracted numerous overseas buyers, and some aircraft still serve with overseas air forces.
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