The 1914 Gyro Motor Co Duplex L was a nine-cylinder air-cooled rotary aero engine producing 110hp@1200rpm from 858.82ci, with a dry weight of 270 lb.
Gyro Motor Duplex L
The 1914 Gyro Motor Co Duplex L was a nine-cylinder air-cooled rotary aero engine producing 110hp@1200rpm from 858.82ci, with a dry weight of 270 lb.
All Aero 