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. 67 Squadron RAF recognition was belatedly granted, and thereafter the unit was known in all quarters by its original designation. The unit itself never regarded itself as part of the RFC, and never used its official RFC number – it is considered as the "ancestor" of No. 1 Squadron RAAF and has no real connection with the later RAF unit. In particular, at the time of the formation of the RAF in April 1918 there was no "No. 67 Squadron RFC" to become an RAF unit of that number. Hence the first No. 67 Squadron RAF was the one formed during the Second