Avro Rota
Autogyro
The Cierva C.30 is an autogyro designed by Juan de la Cierva and built under licence from the Cierva Autogiro Company by A V Roe & Co Ltd, Lioré-et-Olivier and Focke-Wulf. Wikipedia
Manufacturers: Avro, Cierva Autogiro Company, Focke-Wulf, and more
Top speed: 110 mph
First flight: April 1933
Number built: 148