New England Air Museum - Aircraft Engines / 42 Pratt & Whitney R-985 Wasp Junior
Bill Maloney
1/20/2009

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42 Pratt & Whitney R-985 Wasp Junior

42 Pratt & Whitney R-985 Wasp Junior

Pratt & Whitney R-985 Wasp Junior Radial Engine Specifications:

Number of Cylinders : 9 cylinder supercharged air cooled radial gas engine
Displacement:
985 ci
Bore:
5.2 inches
Stroke:
5.2 inches
Compression Ratio:
6.0:1
Aspiraton:
Single Speed Supercharger
Weight:
611lbs
Length:
41 inches
Diameter:
46 inches
Output: 450hp
First Flight : 1930
Airframes used on:
DeHavilland U-6A Beaver, Beech Staggerwing, Beech Model 18, BT-13 Valiant, Grumman Goose, Lockheed L10 Electra, Sikorsky R5, Vought Kingfisher
Cost: $6,000