Pratt & Whitney R-2800 Double Wasp
| R-2800 Double Wasp | |
|---|---|
| A preserved R-2800 engine at the National Museum of the United States Air Force | |
| Type | Radial engine |
| National origin | United States |
| Manufacturer | Pratt & Whitney |
| First run | 1937 First flown May 29, 1940 |
| Major applications | |
| Manufactured | 1939–1960 |
| Number built | More than 125,334 |
The Pratt & Whitney R-2800 Double Wasp is an American twin-row, 18-cylinder, air-cooled radial aircraft engine with a displacement of 2,800 cu in (46 L), and is part of the long-lived Wasp family of engines.
The R-2800 saw widespread use in many important American aircraft during and after World War II. During the war years, Pratt & Whitney continued to develop new ideas to upgrade the engine, including water injection for takeoff in cargo and passenger planes and to give emergency power in combat.