Rolls-Royce Peregrine Rolls-Royce Peregrine 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. Due to the wartime priority of Rolls-Royce Merlin development and production, the Peregrine saw limited use and was cancelled with only 301 engines being built. 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
Rolls-Royce Trent April 1996. Initially Rolls-Royce had difficulty selling the engine; British Airways, traditionally a Rolls-Royce customer, submitted a large order for the competing General Electric GE90 engine. The breakthrough came when it won orders from Singapore Airlines, a staunch Pratt & Whitney customer, for its 34 Boeing 777s. The Trent 800 has a 41% share of the engine market on the 777 variants for which it is available. In 1998 Boeing proposed new longer range variants of the 777. Taking advantage of the Trent 800's growth capability, Rolls-Royce designed and built an improved engine designated "Trent 8104", which was later scaled