Low Level Bombsight, Mark III use in October 1942. Coastal Command had priority on deliveries and only small numbers reached Bomber Command. The first examples arrived in May 1943 and were fit to Douglas Boston bombers of 2 Group. In 1944 the sight was trialled on the Avro Lancasters of No. 617 Squadron RAF, the Dambusters, who carried out a single low-level attack with them in late 1944. Most examples sent to Bomber Command equipped a small number of De Havilland Mosquito aircraft in No. 627 Squadron RAF (who normally operated as pathfinders) and No. 8 Group RAF (Pathfinder Force). The sight remained with Coastal
RAF Bassingbourn a series of newspaper articles written by John Steinbeck during the spring and summer of 1943. Captain Clark Gable had temporary duty at Bassingbourn while producing a gunnery film for the USAAF. It also served as the location for the fictional "28th Bomb Group" in the 1950 Humphrey Bogart film "Chain Lightning". Away from Hollywood, but still in the movies, RAF Bassingbourn was also the setting for the Airfield-based shots in the 1955 film, "The Dambusters", featuring Richard Todd and Michael Redgrave. The RAF resumed occupation of Bassingbourn on 26 June 1945, the airfield was officially returned on 10 July