No. 5 Group RAF effective squadrons of Bomber Command, personified by No 617 Squadron the "Dambusters", formed from 5 Group aircrew in March 1943. Most of the group's main airfields were around Lincoln, including RAF Scampton. By the end of the war the group had grown to 15 squadrons. The group was noted for its high accuracy bombing, being involved the sinking of the "Tirpitz" in November 1944 and the shattering of the strategic Bielefeld railway viaduct in March 1945. The Group introduced new weapons operationally, including Barnes Wallis's "bouncing" and his Tallboy and Grand Slam "earthquake" bombs. The group was disbanded on 15
RAF Sandtoft RAF Sandtoft RAF Sandtoft is a former Royal Air Force Station in North Lincolnshire between Doncaster, South Yorkshire and Scunthorpe, North Lincolnshire, England. RAF Sandtoft opened in February 1944 as a satellite airfield to RAF Lindholme which was 3 miles to the west. No. 1 Group, RAF Bomber Command based a number of aircraft here from the RAF 1667 Heavy Conversion Unit, including Handley Page Halifaxes from RAF Faldingworth and Avro Lancasters. In November 1944 the airfield transferred to No. 7 Group Bomber Command. The RAF station closed on 10 November 1945. After the Second World War, the airfield was