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From Wikipedia, the free encyclopedia
The Pratt & Whitney R-1535 Twin Wasp Junior is an American aircraft engine developed in the 1930s. The engine was introduced in 1932 as a 14-cylinder version of the 9-cylinder R-985, and was a two-row, air-cooled radial design. Displacement was 1,535 cu in (25.2 L); bore and stroke were both 5+3⁄16 in (132 mm).[1]
 | This article includes a list of general references, but it lacks sufficient corresponding inline citations. (April 2018) |
| R-1535 Twin Wasp Junior | |
|---|---|
 | |
| Pratt & Whitney Twin Wasp Junior, at the National Museum of Naval Aviation, Pensacola, Florida | |
| Type | Radial engine |
| National origin | United States |
| Manufacturer | Pratt & Whitney |
| First run | 1932 |
| Major applications | |
| Developed from | Pratt & Whitney R-985 Wasp Junior |
Data from [3]
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