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. 74 Squadron RAF 1939, after an early morning air raid alert, a flight of No. 56 (F) Squadron Hawker Hurricanes took off from North Weald. These were followed by two reserve Hurricanes. The two reserves were identified as enemy aircraft and Spitfires from RAF Hornchurch, among them No. 74 (F) Squadron, were ordered to attack them. Both were shot down. One pilot, P/O Montague Hulton-Harrop was killed; the other pilot, Frank Rose, survived. The pilot who fired the fatal shots was No. 74 (F) Squadron's John Freeborn. The exact story of what happened in this incident, which came to be known as the