Some types in use of Luftwaffe and Kriegsmarine
In use by USAAF, US Navy and US Coast Guard
In use by RAF and FAA
- Avro 671 "Rota" Mk.1 (licence-built Cierva C.30A) (general purpose autogyro - used for radar station testing)
- Bristol "Heliogyro" RI/II (experimental helicopter)
- Cierva W.5 - 2-seater twin outrigger rotor helicopter, first flight 1938.
- Cierva W.6 - twin rotor helicopter, flown in 1939
- Cierva W.9 - jet efflux torque compensation design. Built in 1944 and flown in 1945.
- Hafner Rotabuggy (also known as "Malcolm Rotaplane" and "M.L. 10/42 Flying Jeep") - rotary wing glider attachment for landing jeeps. Tested in 1944 but introduction of vehicle-carrying gliders led to cancellation of project.
- Hafner Rotachute - one-man rotor-kite for landing assault troops. Not adopted but used instead for testing in support of Rotabuggy project
- Sikorsky "Hoverfly" I - service name for Sikorsky R-4 used at RAF Helicopter Training School from 1945
In use for RCAF
- Avro 671 "Rota" Mk.1 (La Cierva C.30A) (general purpose Autogyro)
- Sikorsky R-4B "Hoverfly" (general purpose helicopter)
In use for Red Army and Soviet Air Forces (VVS)
In use by Japanese Army/Navy Air Service
In use for French Army
- S Coates. Helicopters of the Third Reich 2003 Classic Publications ISBN 9781903223246
- Ryszard Witkowski, 2009 Allied Rotorcraft of the WW2 Period MMP Books
- Ryszard Witkowski, 2007 Rotorcraft of the Third Reich MMP Books