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. 31 Squadron RAF No. 31 Squadron will disband temporarily in 2019 once the Tornado GR4 is retired. The squadron will reform, around 2024 at RAF Waddington, equipped with the General Atomics MQ-9B, a remotely piloted air system (RPAS), which will be known as the Protector RG1 in RAF service. As part of the celebrations of its 100th birthday, a No. 31 Squadron memorial was unveiled at the National Arboretum in October 2015. No. 31 Squadron RAF No. 31 Squadron of the Royal Air Force (RAF), known as the 'Goldstars', currently operates the Tornado GR4 from RAF Marham, Norfolk. The squadron was formed at