Pratt and Whitney: Twin Wasp
Note: This is a sub-section of Pratt and Whitney
The Pratt & Whitney R-1830 Twin Wasp was an American aircraft engine widely used in the 1930s and 1940s. Produced by Pratt & Whitney, it was a two-row, 14-cylinder, air-cooled radial design. It displaced 1,830 cu in (30.0 L) and its bore and stroke were both 5.5 in (140 mm).
A total of 173,618 R-1830 engines was built, and from their use in two of the most-produced aircraft ever built, the B-24 bomber and DC-3 transport, more Twin Wasps may have been built than any other aviation piston engine in history.
An enlarged version with a slightly higher power rating was produced as the R-2000.
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