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. 97 Squadron RAF The squadron was later posted to India, where it remained until disbanding on 1 April 1920, after being re-numbered No. 60 squadron. The squadron reformed on 16 September 1935 at RAF Catfoss, and was equipped with the Handley Page Heyford. The squadron was disbanded again in April 1940. The squadron reformed again on 25 February 1941 at Waddington, and was equipped with the Avro Manchester bomber. Later the squadron was re-equipped with the Avro Lancaster, and in April 1943 became a pathfinder force squadron. The squadron also trained several pilots who were later transferred to 617 Squadron to participate in