Pratt & Whitney R-985

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The Pratt & Whitney R-985 Wasp Junior was an engine widely used in American aircraft starting in the 1930s. It was a scaled-down version of the original R-1340, and the second in the Wasp family. It was a single-row, 9-cylinder air-cooled radial design. Displacement was 985 cubic inches (16.1 liters); bore and stroke were 5-3/16" and 5-3/16".

It was used on numerous light aircraft and has a good reputation for being dependable. Most versions produced 450 hp.

Specifications (R-985)

External link

http://www.pratt-whitney.com/about_history_classic_r985.asp

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