Cierva C.40

The Cierva C.40 was a British autogyro designed by J.A.J Bennett and assembled by the British Aircraft Manufacturing Company at London Air Park, Hanworth.

Development
The C.40 was the last autogiro designed by the Cierva company. Following the death of Cierva in 1936 the C.40 was designed by J.A.J. Bennett and based on the earlier Cierva C.30. It had two side-by-side seats in a wooden fuselage and was powered by a Salmson 9NG radial engine.

In 1938 the British Aircraft Manufacturing Company assembled nine C.40s at London Air Park, Hanworth, and seven were delivered to the Royal Air Force. The remaining two were civilian registered to the Cierva company, one was lost in France in June 1940, and the other was impressed into RAF service.

Operators

 * Royal Air Force
 * Royal Air Force