No. 617 Squadron RAF No. 617 Squadron RAF Number 617 Squadron is a Royal Air Force aircraft squadron, based at RAF Marham in Norfolk. It is commonly known as the "Dambusters", for its actions during Operation Chastise against German dams during the Second World War. In the early 21st century it operated the Tornado GR4 in the ground attack and reconnaissance role until being disbanded in the spring of 2014. The squadron reformed on 17 April 2018, and was equipped at RAF Marham during summer 2018 with the F-35 Lightning II, becoming the UK's first squadron with this advanced V/STOL type. According to the
No. 76 Squadron RAF No. 4 Group, RAF Bomber Command. The Squadron moved to RAF Middleton St. George in June 1941, returning to Linton-on-Ouse in July 1942. The squadron moving again, this time to RAF Holme-on-Spalding Moor in June 1943 as part of a policy to allow the newly formed Canadian 6 Group to use the better equipped RAF stations that had been built pre-war. The Squadron had a substantial number of Norwegian pilots and aircrew. From August 1942 to April 1943, No 76 Squadron was commanded by Wing Commander Leonard Cheshire. With the rest of No.4 Group, 76 Squadron was transferred to RAF