Pratt & Whitney Wasp series
| Wasp series | |
|---|---|
| |
| R-2800 Double Wasp as fitted to an F4U Corsair | |
| Type | Radial engine |
| National origin | United States |
| Manufacturer | Pratt & Whitney |
The Pratt & Whitney Wasp was the civilian name of a family of air-cooled radial piston engines developed in the 1920s, 1930s and 1940s.[1]
The Pratt & Whitney Aircraft Company (P&W) was founded in 1925 by Frederick B. Rentschler, who had previously been the President of Wright Aeronautical. He brought with him some of Wright's best designers and the new team quickly came up with their first design, the R-1340 Wasp.[1][2]
Wasp series[edit]
- R-985 Wasp Junior (1930)[3][4]
- 985 cu in (16.14 L) displacement 9-cylinder single row air cooled radial
- 5+3⁄16 in × 5+3⁄16 in (132 mm × 132 mm) bore x stroke
- R-1340 Wasp (1925)[5][6]
- 1,344 cu in (22.02 L) displacement 9-cylinder single row air cooled radial
- 5+3⁄4 in × 5+3⁄4 in (150 mm × 150 mm) bore x stroke
- R-1535 Twin Wasp Junior (1931)[7]
- 1,535 cu in (25.15 L) displacement 14-cylinder, two row, air cooled radial
- 5+3⁄16 in × 5+3⁄16 in (132 mm × 132 mm) bore x stroke
- R-1830 Twin Wasp (1931)[8]
- 1,830 cu in (30.0 L) displacement 14-cylinder two row air cooled radial
- 5+1⁄2 in × 5+1⁄2 in (140 mm × 140 mm) bore x stroke
- R-2000 Twin Wasp[9]
- 2,000 cu in (33 L) displacement 14-cylinder two row air cooled radial,
- 5+3⁄4 in × 5+1⁄2 in (150 mm × 140 mm) bore x stroke
- R-2180-E Twin Wasp E[10]
- 2,180 cu in (35.7 L) displacement 14-cylinder two row air cooled radial
- 5+3⁄4 in × 6 in (150 mm × 150 mm) bore x stroke
- R-2800 Double Wasp (1940)[3][11]
- 2,804 cu in (45.95 L) displacement 18-cylinder two row air cooled radial
- 5+3⁄4 in × 6 in (150 mm × 150 mm) bore x stroke
- R-4360 Wasp Major (1942)[10][12]
- 4,363 cu in (71.50 L) displacement 28-cylinder four row air cooled radial
- 5+3⁄4 in × 6 in (150 mm × 150 mm) bore x stroke
Note: the designations refer to the engine configurations as follows: "R" = Radial, followed by the approximate displacement in cubic inches.
See also[edit]
Related development
Comparable engines
Related lists
References[edit]
Notes[edit]
- ^ a b Gunston 1986, pp. 109–113.
- ^ White 1995, pp. 195–198.
- ^ a b Gunston 1986, p. 111.
- ^ White 1995, p. 201.
- ^ Gunston 1986, p. 110.
- ^ White 1995, p. 195.
- ^ White 1995, p. 203.
- ^ White 1995, p. 206.
- ^ White 1995, p. 221.
- ^ a b Gunston 1986, p. 113.
- ^ White 1995, p. 222.
- ^ White 1995, p. 253.
Bibliography[edit]
- Gunston, Bill (1986). World Encyclopedia of Aero Engines. Wellingborough, Northamptonshire: Patrick Stephens Limited. ISBN 0-85059-717-X.
- White, Graham (1995). Allied Aircraft Piston Engines of World War II. Warrendale, Pennsylvania: Society of Automotive Engineers, Inc. ISBN 1-56091-655-9.