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. 75 Squadron RAF Air Training Scheme, and were known as "Article XV squadrons".) 75 (NZ) Sqn rejoined No. 3 Group and was based initially at RAF Feltwell, then RAF Mildenhall, RAF Newmarket and RAF Mepal in Cambridgeshire. It saw action over France, Norway, Belgium, Italy, Sweden and Germany. Its code letters of "AA" became widely recognised on both sides, The squadron operated with three flights after receiving Short Stirlings, and "C" Flight was given the code letters "JN" as there were insufficient codes for three flights of "AA". Avro Lancasters replaced the Stirlings in 1944 until August 1945 when after moving to RAF