In internal combustion engines, water injection, also known as anti-detonant injection, can spray water into the incoming air or air–fuel mixture, or directly into the combustion chamber to cool certa
A "wet" takeoff of a KC-135 with J57 engines
FW 190 with BMW 801 engine getting up to 110 kW (150 hp) extra from water injection mixture
BMW 801 aircraft engine at the BMW Museum
The Pratt & Whitney R-2800 Double Wasp is an American twin-row, 18-cylinder, air-cooled radial aircraft engine with a nominal displacement of 2,800 cu in, and is part of the long-lived Wasp family of
Water injection (engine)
…still allowing for a leaner and more powerful mixture. Notable engines with water fuel injection include BMW 801, Daimler-Benz DB 605, Junkers Jumo 213, Pratt & Whitney R-2800 Double Wasp. When used in a turbine engine, the effects are similar, except that preventing detonation is normally not the primary goal. Water is normally injected…
A preserved R-2800 engine at the National Museum of the United States Air Force
Cutaway of a Pratt & Whitney R-2800 Double Wasp
The first prototype F4U Corsair, the earliest aircraft specifically designed to use the Double Wasp
A preserved "B Series" R-2800-21 or -59. The A and B series can be most readily identified by their smooth, single-piece nose casings. This photo shows the simplified tubular ignition harness fitted to some R-2800 subtypes.