|Type:||9-cylinder, single-row, air-cooled, radial, piston|
|Displacement:||1,820 cu. in.|
|Power Output:||930 hp @ 2,200 rpm|
Gift of Edmund L. Robinson
Introduced in 1930, the R-1820 went through a 25-year production run that saw its power output range from 700 hp to 1,500 hp depending on the model and configuration. They were produced well into the 1950s and were built under license by companies that included Studsbaker, Lycoming and Pratt & Whitney. It was also built in the Soviet Union as the Shvetsov M-25 and in Spain as the Hispano-Suiza 9V. It is one of the most important engines in aviation and saw wide service in both civil and military aircraft. A variant was even used in the M4A6 Sherman tank.
Applications of the R-1820 included:
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