Armstrong Whitworth Argosy

The Armstrong Whitworth Argosy gave the Royal Air Force a purpose-built turboprop freighter at a moment when Britain’s post-war airlift commitments were stretching well beyond the capacity of ageing piston transports. With its box-like fuselage, twin tail booms and capacious hold, it was never a glamorous machine, but it was an exceptionally practical one. The type could move troops, palletised freight and vehicles across the Middle East, the Mediterranean and the Far East, and later found a second life in specialist calibration work over Britain.

Designed for a changing RAF

The Argosy originated in a 1955 Air Ministry requirement for a medium-range military transport. Armstrong Whitworth initially investigated a twin-engined design, but the project developed into a privately financed civil freighter after the original military requirement was abandoned. The resulting AW.650 first flew on 8 January 1959.

The RAF subsequently selected a military derivative, designated AW.660, to replace ageing piston-engined transports. The military Argosy featured a strengthened cargo floor, revised rear loading doors, weather radar in place of the civil aircraft’s forward cargo door, additional fuel capacity and provision for parachute operations. The first AW.660, XN814, flew on 4 March 1961. Fifty-six were built for the RAF, entering squadron service in 1962.

Carrying Britain’s Cold War commitments

That routine work mattered. Argosies entered service with 105 Squadron, while 114 Squadron and 267 Squadron operated the type from RAF Benson in Britain. In 1963 the aircraft also reached 215 Squadron at RAF Changi, and after that unit disbanded its aircraft passed to 70 Squadron in Cyprus. From those bases the Argosy supported a very wide geography: troop movements, freight flights, airdrop tasks, reinforcement runs and communications duties across the Middle East, Africa, the Mediterranean and South-East Asia.

The career of Argosy C.1 XP411, documented by the RAF Museum, illustrates the aircraft’s varied responsibilities. No. 105 Squadron operated Argosies from RAF Khormaksar in Aden, supporting British forces during the Radfan campaign and maintaining transport links across the region. In January 1964, squadron aircraft carried British troops to Uganda during the army mutiny. During 1965, Argosies supported operations following Rhodesia’s Unilateral Declaration of Independence and reinforced the Far East Air Force during the Indonesian Confrontation. Their duties included carrying personnel and equipment, supply dropping and sustaining isolated detachments across considerable distances.

In April 1965, RAF Argosies also became involved in the confrontation over access to West Berlin. The Soviet Union announced military flying exercises affecting the Western air corridors, attempting to pressure the Western Allies during a planned meeting of the West German Bundestag in Berlin. RAF Argosy transport aircraft continued to use the corridors despite the disruption. The episode demonstrated the importance of maintaining Allied air communications with the divided city.

From freighter to specialist work

The introduction of the Lockheed Hercules and reductions in overseas commitments gradually brought the Argosy’s transport career to an end. No. 70 Squadron withdrew the final transport-role aircraft in February 1975. However, No. 115 Squadron had already begun operating Argosies in February 1968 for radio and navigational-aid calibration duties. Nine former C.1 aircraft were subsequently converted to the specialised E.1 configuration, with the conversion programme taking place in 1971. The squadron continued operating the Argosy until January 1978, when the remaining aircraft were withdrawn as Hawker Siddeley Andovers took over the work.

The Argosy was among the final aircraft developed by Armstrong Whitworth before its identity disappeared into the Hawker Siddeley organisation. In RAF service it provided a substantial improvement in medium-range transport capability, supporting overseas garrisons, regional emergencies and demanding supply operations. Its later use as a calibration aircraft extended its career beyond the withdrawal of the transport fleet. From Aden and Singapore to the airfields of Britain, the Argosy contributed to the RAF’s changing transport and specialist support requirements during the Cold War.