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The Rolls-Royce Peregrine
was a , liquid-cooled V-12 aero engine
designed and built by the British manufacturer Rolls-Royce
in the late 1930s. It was essentially the ultimate development of the company's Kestrel
engine, which had seen widespread use in military aircraft of the pre-war period.
The engine was named after the Peregrine Falcon
in keeping with company tradition of naming its piston aero engines after birds of prey
. Due to the wartime priority of Rolls-Royce Merlin
development and production, the Peregrine saw limited use and was cancelled with only 300 engines being built.
Design and development
During the 1930s the use of superchargers
to increase "effective displacement" of an aircraft engine came into common use. Charging of some form was a requirement for high-altitude flight, and as the strength of the engines improved there was no reason not to use it at all times. The introduction of just such a "ground-level" supercharger to the Kestrel along with several design changes improved the power-to-weight ratio
considerably, and it was generally felt that the resulting Peregrine would be the "standard" fighter
engine for the impending war. Following the company convention of naming its piston aero engines after birds of prey, Rolls-Royce named the engine the......