Wright Cyclone R-1820
Engine Specifications


Type: 9 cylinder air cooled radial
Lenght: 47.69 inches
Bore: 6.125 inches
Stroke: 6.875 inches
Displacement: 1820 cubic inches
Compression Ratio: 6.8 to 1
Dry Weight: 1365 lbs.
Ignition: Dual Scintilla S9LU-5
Fuel Grade: 100/130 octane
Carburation: Stromberg PD12K14
Performance: Take-Off:  1425 HP @ 51.5 in. hg. @ 2700 rpm
Cruise:        890 HP @ 33 in. hg. @ 2300 rpm