Pratt & Whitney R-985

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The Pratt & Whitney R-985 Wasp Junior was a radial 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 each 5³⁄₁₆ in (132 mm).

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

Specifications (R-985)

Related contents

• Pratt & Whitney Wasp series
• R-1340 Wasp
• R-1830 Twin Wasp
• R-1535 Twin Wasp Junior
• R-2800 Double Wasp
• R-4360 Wasp Major

Applications

:

• Airspeed Oxford
• Air Tractor AT-300
• Avro Anson
• Barkley-Grow T8P-1
• Beechcraft Staggerwing
• Beech Model 18
• Bellanca CH-300
• De Havilland Canada DHC-2 Beaver
• Grumman Goose
• Howard DGA-11
• Howard DGA-15
• Lockheed Electra
• Lockheed Model 12 Electra Junior
• PWS-24
• Sikorsky R-5
• Spartan Executive
• Vought Kingfisher
• Vultee BT-13 Valiant

External links

• http://www.pw.utc.com/vgn-ext-templating/v/index.jsp?vgnextoid=2c0df3b8f77fb010VgnVCM1000000881000aRCRD
• http://www.hill.af.mil/museum/photos/wwii/r985.htm

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Last updated on Friday February 15, 2008 at 18:53:17 PST (GMT -0800)
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