The Cierva C.30 was an autogyro that first flew in 1934. It had a 3 bladed rotor and radial Genet Major engine. It was license manufactured from 1934 by A.V. Roe as C.30A with a slightly bigger undercarriage track. Some 148 were built in the U.K.
Even in Germany license manufacturing was done by Focke Wulf as Fw.30 with some 40 made with a Siemens Sh.14 engine.
The Royal Air Force used several C.30A in the 1930s from the school at RAF Old Sarum near Salisbury and during the Second World war it was used for radar station calibration work.
A.V. Roe / AVRO Rota 671
This auto gyro Avro Rota 671 mk.1 coded HM580 "KX-K" was seen at the war museum at Duxford (U.K).
Photographed 2015 by Cees Hendriks (C) Copyright IPMS Nederland
Cierva C.30A Rota mk. 1
This aircraft is on display at the Science Museum, London, U.K.
Photographed April 2022 by Ronald van Voorst (C) Copyright IPMS Nederland
A few scale models exist: in 1/48 scale from Lawrence design and JMGT. In 1/72 scale from Azur, Merlin, Miku and a nice RS Models kit.
This walk around was first created May 2018 by M. de Vreeze; note the Copyright!