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. 617 Squadron RAF of the Fleet Air Arm, but both attacks had failed to sink her. The task was given to No. 9 and No. 617 Squadrons where they were deployed to Yagodnik, near Archangel a staging base in Russia to attack "Tirpitz" with Tallboy bombs. On 15 September 1944, the RAF bombers struck the battleship in the forecastle, which rendered her unseaworthy, so she was sent to the Tromsø fjord where temporary repairs were made so she was anchored as a floating battery. This fjord was in range of bombers operating from Scotland and from there, in October, she was attacked again,