In May, the Germans mounted the most ambitious raid of all: Operation Rheinübung. The new battleship and the cruiser put to sea to attack convoys. A British fleet intercepted the raiders off Iceland. In the Battle of the Denmark Strait, the battlecruiser was blown up and sunk, but "Bismarck" was damaged and had to run to France. "Bismarck" nearly reached her destination, but was disabled by an airstrike from the carrier "Ark Royal", and then sunk by the Home Fleet the next day. Her sinking marked the end of the warship raids. The advent of long-range search aircraft, notably the unglamorous but versatile PBY Catalina, largely neutralised surface raiders.