No. 658 Squadron was a Royal Air Force Air Observation Post squadron associated with the 21st Army Group during World War II. No.s 651 to 663 Squadrons of the RAF were Air Observation Post units working closely with Army units in artillery spotting and liaison. A further three of these squadrons, Nos. 664 to 666, were manned with Canadian personnel. Their duties and squadron numbers were transferred to the Army with the formation of the Army Air Corps on 1 September 1957.
No. 660 Squadron was formed at RAF Old Sarum on 30 April 1943 with the Auster III and from March 1944 the Auster IV. The squadron role was to support the 21st Army Group and in June 1944 it moved to France. Fighting in the break-out from Normandy it followed the army across the countries and into Germany. In October 1945 the squadron left for India, where it was disbanded on 15 October 1946. The squadron today is represented by 658 Squadron of 7 (Volunteer) Regiment, Army Air Corps.This Squadron is no longer under 7 AAC but a renaming of 8 Flight Army Air Corps.
Flintham, Vic and Andrew Thomas. Combat Codes: A full explanation and listing of British, Commonwealth and Allied air force unit codes since 1938. Shrewsbury, Shropshire, UK: Airlife Publishing, 2003. ISBN 1-84037-281-8.
Halley, James J. The Squadrons of the Royal Air Force & Commonwealth 1918–1988. Tonbridge, Kent, UK: Air Britain (Historians), 1988. ISBN 0-85130-164-9.
Jefford, Wing Commander C.G., MBE, BA, RAF(Retd.). RAF Squadrons, a Comprehensive record of the Movement and Equipment of all RAF Squadrons and their Antecedents since 1912. Shrewsbury, Shropshire, UK: Airlife Publishing, 1988 (second edition 2001). ISBN 1-85310-053-6.