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The Pratt & Whitney R-4360 Wasp Major is an American 28-cylinder four-row radial piston aircraft engine designed and built during World War II.At 4,362.5 cu in (71.5 L), it is the largest-displacement aviation piston engine to be mass-produced in the United States, and at 4,300 hp (3,200 kW) the most powerful.
The Napier Sabre is a British H-24-cylinder, liquid-cooled, sleeve valve, piston aero engine, designed by Major Frank Halford and built by D. Napier & Son during World War II. The engine evolved to become one of the most powerful inline piston aircraft engines in the world, developing from 2,200 hp (1,600 kW) in its earlier versions to 3,500 hp ...
It includes experimental engines as well as those that made it to production status. The Reich Air Ministry used an internal designation system that included a prefix number signifying the engine type, 9 for piston engines and 109 for jets and rockets, followed by a manufacturer's code, followed by an engine series number. [1]
Allied Aircraft Piston Engines of World War II: History and Development of Frontline Aircraft Piston Engines Produced by Great Britain and the United States During World War II. Warrendale, Pennsylvania: SAE International. ISBN 1-56091-655-9. White, Graham (2001). R-2800: Pratt & Whitney's Dependable Masterpiece. Shrewsbury, UK: Airlife Publishing.
British Piston Engines and Their Aircraft. Shrewsbury: Airlife Publishing Ltd. ISBN 1-85310-294-6.. White, Graham. Allied Aircraft Piston Engines of World War II: History and Development of Frontline Aircraft Piston Engines Produced by Great Britain and the United States During World War II. Warrendale, Pennsylvania: SAE International, 1995.
The Lycoming XR-7755 was the largest piston aircraft engine ever built in the United States, [Note 1] with 36 cylinders totaling about 7,750 in 3 (127 L) of displacement and a power output of 5,000 horsepower (3,700 kilowatts).
The Allison V-1710 aircraft engine designed and produced by the Allison Engine Company was the only US-developed V-12 liquid-cooled engine to see service during World War II. Versions with a turbocharger gave excellent performance at high altitude in the twin-engined Lockheed P-38 Lightning , and turbo-superchargers were fitted to experimental ...
Allied Aircraft Piston Engines of World War II: History and Development of Frontline Aircraft Piston Engines Produced by Great Britain and the United States During World War II. Warrendale, Pennsylvania: SAE International, 1995. ISBN 1-56091-655-9; Jane's Fighting Aircraft of World War II. London. Studio Editions, 1998. ISBN 0-517-67964-7.