Curtiss R-600 Challenger

R-600 Challenger
Preserved R-600 engine
Type Radial engine
Manufacturer Curtiss Aeroplane and Motor Company
First run 1920s

The Curtiss R-600 Challenger was a six-cylinder, double-row, air-cooled, radial engine for aircraft use built in the United States in the late 1920s. It developed 170 to 180 horsepower (127 to 134 kW).