Parnall-Cierva C.11 Gyroplane


The C.11 (G-EBQG) was the second autogyro designed by Harold Bolas under the Cierva and Parnall contract, later called the Parnall Gyroplane. It was built in 1928 with the 120hp (90kW) ADC Airdisco air-cooled V-8 piston engine. Cierva had an accident in this machine at Yale when he tried to take off before the rotor could develop enough speed, but it was later restored and used as an instructional airframe.