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. 238 Squadron RAF No. 238 Squadron RAF No. 238 Squadron was a squadron of the Royal Air Force. It was first formed in 1918 by combining number 347, 348 and 349 Flights at RAF Cattewater by the Royal Flying Corps during the First World War. It was reformed for the Second World War, the Berlin Airlift and currently is a Line Training Flight (LTF) squadron based at RAF Cosford, albeit in a non-flying capacity. The squadron was formed at RAF Cattewater (later RAF Mount Batten) in August 1918 by combining number 347, 348 and 349 Flights into the one squadron. All were flying