in the "air train" together with the glider Schneider Grunau Baby and the airplane de Havilland DH.60 Moth over the Baltic sea states: Kaunas, Riga, Tallinn, Helsinki. Twelve C.30As built by Avro for the Royal Air Force (RAF) entered service as the Avro 671 Rota Mk 1 (Serials K4230 to K4239 and K4296 & K4775). The twelve were delivered between 1934 and 1935. They equipped the School of Army Co-operation at RAF Old Sarum near Salisbury. Many of the surviving civil aircraft were also taken into RAF service between 1939 and 1940. In 1940 they equipped 1448 Flt. at RAF Duxford. Later they equipped 529 Sqn. at RAF Halton on radar calibration work, disbanded in October 1945, the twelve survivors were sold on to civilian owners. Most of these did not last long, although two were used for pilot rotary wing experience by Fairey in their Fairey Gyrodyne helicopter programme. Rota Towels kept one ex-RAF Rota airworthy G-AHTZ until an accident in 1958. G-ACUU, the Imperial War Museum's C.30A exhibit at Duxford had one of the longest active lives. It joined Air Service Training Ltd in 1934, was impressed (as Rota HM580) in 1942, serving with 529 Squadron and returning to civil use by G.S. Baker based at Birmingham's Elmdon Airport airport with its original registration plus the nickname Billy Boy and was not withdrawn from use until 1960. After several years of work at the Maestranza Aérea de Albacete, on 15 January 1998, a C.30 was flown again. It was piloted by Lieutenant Colonel Fernando Iglesia. After an accident in June 2000, which almost left the pilot without an arm, the aircraft was handed over to the Museum of Aeronautics and Astronautics, located at the Cuatro Vientos air base (Madrid). Variants C.30 Powered by a Armstrong Siddeley Genet Major I radial piston engine. C.30P Improved model, powered by a Armstrong Siddeley Genet Major IA radial piston engines C.30A Main production model, powered by a Armstrong Siddeley Genet Major IA radial piston engine. Rota Mk I RAF designation of the Cierva C.30A. Lioré et Olivier LeO C-30 59 license built Cierva C.30, powered by Salmson 9Ne engines, were supplied to the French Air Force and French Navy. All LeO C-30 autogyros were destroyed or captured by German forces during the invasion of France in 1940. Lioré et Olivier LeO C-30S Construction number 26 was completed as the sole C-30S. Lioré-et-Olivier