Wright R-975 Whirlwind Piston Engine

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Aircraft Engine Manufacturer
Continental
Aircraft Engine Type
Piston
Dry Weight (kg)
306.1748
Diameter (mm)
114.3
Length (mm)
109.22
Wikipedia Article (URL)
en.wikipedia.org/wiki/Wright_R-975_Whirlwind
Fuel
80 octane
Cylinders
9
Cylinders Disposition
radial
Bore (mm)
127
Stroke (mm)
140
Displacement (L)
15.9282
Supercharger
gear-driven, 10.15:1 impeller gear ratio
Compression Ratio
6.3
Valvetrain
2 valves per cylinder, pushrod-actuated
Cooling
Air-cooled
Maximum Takeoff Power (kW)
313.1939
Specific Power (kW/L)
0.3207
Power To Weight (kW/kg)
0.62

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