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
No. 1 Air Experience Flight RAF of whom were retired former RAF Officers. It was not uncommon for former Air Commodores, Group Captains, Wing Commanders and Squadron Leaders to return to uniform following retirement from the RAF as Flying Officers and Flight Lieutenants with the RAFVR(T) to carry on flying at weekends. The pilot staff comprised many experienced aircrew, some of whom had served operationally during the latter part of World War II, including one who flew with 617 Squadron but did not fly on the Dams Raid, and during the heightened tensions of the Cold War. A few of the pilot staff were ex members