Turret Dora was thrown from its bearings and could not be rotated; this was particularly significant, as there were no heavy-lift cranes in Norway powerful enough to lift the turret and place it back on its bearings.[15][citation needed] The ship's two Arado Ar 196 floatplanes were thrown by the explosive concussion and completely destroyed. Repairs were conducted by the repair ship Neumark; historians William Garzke and Robert Dulin remarked that the successful repair effort was "one of the most notable feats of naval engineering during the Second World War."[16][citation needed] Repairs lasted until 2 April 1944; full-speed trials were scheduled for the following day in Altafjord.[17][citation needed] On 12 November 1944, the ship was destroyed by Avro Lancaster bombers.[18]