The breakout into the Atlantic of the German battleship "Bismarck" in May 1941 led to the "Ark Royal" being ordered into the Atlantic with the British fleet to hunt and sink the German ship. When the "Bismarck" was located, aircraft from 810 and 818 Naval Air Squadrons carried out attacks. Eventually a Swordfish of 818 Squadron, probably the one piloted by Sub-Lt. John Moffat, struck "Bismarck"’s aft with a torpedo, jamming her rudder in a turn to starboard. Unable to manoeuvre, the "Bismarck" swung around in a wide circle, allowing the ships of Force H to catch up and sink the "Bismarck".