Gunther Prien and U-47: The Bull of Scapa Flow

On the night of 13/14 October 1939, the Type VIIB U-boat U-47, on its second War Patrol, penetrated the main Royal Navy base at Scapa Flow and sank the British battleship HMS Royal Oak. This legendary attack is remembered as one of the most audacious raids in the history of submarine warfare.

Laid down on 25 February 1937, and entering service in December 1938 under the command of Oberleutnant zur ...