early batch of 30 Devons was delivered to the Royal Air Force and they were used as VIP and light transports for over 30 years. The Royal New Zealand Air Force acquired 30 Devons between 1948 and 1954, and these remained in service for VIP, crew-training and light transport duties into the 1970s. The Biafran Air Force operated a single Dove during the Nigerian Civil War; the aircraft was lost, to be subsequently found in 1970 on the premises of a school in Uli. A second US-registered Riley Dove, N477PM delivered in 1967 to Port Harcourt from Switzerland, never reached Biafra because it was stopped by Algerian authorities. A few Doves and civilianised Devons remained in use in 2011 in the United Kingdom, Canada, Germany and elsewhere with small commercial firms and with private pilot owners. Variants Dove 1 : Light transport aircraft, seating up to 11 passengers. Powered by two ) de Havilland Gipsy Queen 70-3 piston engines. Dove 1B : Dove Mk 1 aircraft, fitted with two Gipsy Queen 70-4 piston engines. Dove 2 : Executive transport version, seating up to six passengers. Powered by two Gipsy Queen 70-3 piston engines. Dove 2B : Dove Mk 2 aircraft, fitted with two Gipsy Queen 70-4 piston engines. Dove 3 : Proposed high-altitude survey version. Not built. Dove 4 : Military transport and communications version. Devon C Mk 1 : Transport and communications version for the RAF. Devon C Mk 2 : Transport and communications version for the RAF. Re-engined version of the Devon C Mk 1 fitted with revised cockpit and two Gipsy Queen 175 piston engines. Sea Devon C Mk 20 : Transport and communications version for the Royal Navy. Dove 5 : Uprated version of the Dove 1, seating up to 11 passengers, with two Gipsy Queen 70 Mk2 piston engines. Dove 6 : Uprated version of the Dove 2, a six seat executive transport aircraft, powered by two Gipsy Queen 70 Mk2 piston engines. Dove 6B : Stressed for operations at a maximum weight of . Dove 7 : Uprated version of the Dove 5, seating up to 11 passengers, fitted with two Gipsy Queen 70 Mk3 piston engines and revised cockpit. Dove 8 : Uprated version of the six seat executive Dove 6, fitted with two Gipsy Queen 70 Mk3 piston engines and revised cockpit. Dove 8A : Five seater version of the Dove 8