No. 617 Squadron RAF at Marham. On the 6th August 2018 5 more F-35B's arrived at RAF Marham in Norfolk for 617 Squadron. List of aircraft operated by No. 617 Squadron. Fortress Europe 1943-1945, The Dams, Biscay Ports 1944, France and Germany 1944-1945, Normandy 1944, "Tirpitz", Channel and North Sea 1944-1945, German Ports 1945, Gulf 1991, Iraq 2003-2011. The following men have commanded 617 Squadron: 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
No. 421 (Reconnaissance) Flight RAF were issued to 421 Flight and the Hurricanes went to other squadrons. No. 421 (Reconnaissance) Flight RAF No. 421 (Reconnaissance) Flight was a specialist RAF fighter flight created on 21 September 1940 to patrol the Channel and provide early warning of the types of incoming Luftwaffe raids from occupied France. It was later expanded to full squadron strength and renumbered as No. 91 Squadron on 11 January 1941. Its role led to its pilots being nicknamed "Jim Crows". In late September 1940, Air Chief Marshal Hugh Dowding was faced with two problems. The first was a change in Luftwaffe tactics.