Pratt & Whitney R-1830-33

Pratt & amp; Whitney R-1830-S3C4-G Twin Wasp


Cylinder arrangement: fourteen-cylinder star
Cooling: by air
Cylinder bore: 140 mm
Stroke: 140 mm
Displacement: 30.0 l (dm3)
Degree of compression: 6.7: 1
Distribution: OHV (1 intake valve and 1 exhaust for each cylinder head)
Fuel: 100 octane
Carburettor: Stromberg
Supercharging: mechanical compressor
Length: 1,608 mm
Engine diameter: 1,219 mm
Weight: 676 kg
Performance:
1,200 horsepower at 2,700 rpm at start
1,100 hp at 2,550 rpm in h = 1,890 m - maximum power
700 hp at 2,175 rpm - continuous power


Source:
www.oldengine.org
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