operated in support of the British Army, the King's African Rifles and the Kenyan Police. The squadron moved to Aden in June 1965, taking over the Twin Pioneers of No.78 Squadron and supplementing them with Douglas Dakotas and Hawker Siddeley Andovers. With the withdrawal of British forces from Aden the squadron was disbanded on 9 September 1967. The squadron's last formation was on 3 February 1969, when the Western Communications Squadron was re-designated at RAF Andover. It provided transport for senior officers in the western part of the United Kingdom using the Devon and Pembroke. It was disbanded following defence cuts on 31 March 1976. Aircraft operated 1915 – Royal Aircraft Factory R.E.7 1916 – Bristol Scout 1916 – Royal Aircraft Factory B.E.2c 1916 – Royal Aircraft Factory B.E.2e 1916 – Martinsyde G.100 1916 – Royal Aircraft Factory B.E.12 1917 – Royal Aircraft Factory R.E.8 1935 – Hawker Hind 1938 – Bristol Blenheim I 1939 – Bristol Blenheim IV 1942 – Lockheed Ventura I 1942 – Lockheed Ventura II 1943 – de Havilland Mosquito VI 1953 – English Electric Canberra B2 1958 – English Electric Canberra B6 1959 – Scottish Aviation Twin Pioneer CC1 1965 – Douglas Dakota 1967 – Hawker Siddeley Andover CC2 1969 – De Havilland Devon C2 1969 – Percival Pembroke C1 See also List of Royal Air Force aircraft squadrons References The Illustrated Encyclopedia of Aircraft (Part Work 1982–1985). London: Orbis Publishing. External links Official RAF 21 Squadron history Squadron history on 'Air of Authority' 021 Military units and formations established in 1915 021 Squadron Military units and formations disestablished in 1979 1915 establishments in the United Kingdom