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. 255 Squadron RAF conditions unsuitable for day fighters. This kept the squadron's personnel busy during what a relatively quite period in the air war over England. Entries in the squadron's ORB during this period record mostly "no operational night flying. No enemy aircraft in the Sector." The comment was often suffixed by "...and weather u/s". On 6 June 1942, the squadron moved from RAF High Ercall to RAF Honiley, in Warwickshire, where they rotated with No. 257 Squadron RAF, No. 3010 Echelon and No. 1456 Flight RAF. The move was completed in a single day. From Honiley the squadron continued to fly operational