Pratt & Whitney R-985 Wasp Junior

Pratt & Whitney R-985 Wasp Junior aircraft engine at the New England Air Museum

Specifications

Type:   9-cylinder, air-cooled, radial, piston
Turbine:   
Compressor:   
Displacement:   985 cu. in.
Weight:   640 lbs.
Power Output:   300 - 450 hp based on model
Year:   
NEAM Id:   45
Location:   Military Hangar

Pratt & Whitney developed the R-985 Wasp Junior as a smaller version of the R-1340 Wasp to compete in the market for medium-sized aircraft engines. Wasp Juniors have powered numerous smaller civil and military aircraft, including small transports, utility aircraft, trainers, agricultural aircraft, and helicopters. More than 39,000 were produced from 1929 until the end of production in 1953 It was considered the best engine in its class and many Wasp Junior engines are still flying today.

Please contact Nick Hurley, Museum Curator, by email if you have any information or comments on the Pratt & Whitney R-985 Wasp Junior.


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