Pratt & Whitney R-1340 Wasp Radial Engine Specifications:

Number of Cylinders: 9 Cylinder Air Cooled Radial
Displacement: 1,340 ci
Bore: 5.75 inches
Stroke: 5.75 inches
Compression Ratio: 6.7:1
Aspiraton: Single Stage Supercharger
Weight: 650lbs
Length: feet inches
Diameter: feet inches
Output: 600hp at 2,250rpm
First Flight: 1925
Airframes used on: T-6 Texan, North American Harvard, Ford Trimotor, Boeing P-26, Curtiss O-52 Owl, Sikorsky UH-19 Chickasaw Helicopter
Cost: $