There was no recorded wreck at this place so it was described to your related authorities, including the Receiver of the Wreck (RoW). U-31 evaded a spread of four torpedoes fired by HMS Trident about fifteen miles (24 km) south of Lorient and was then forced to dive when fired https://u3112150.thekatyblog.com/32867080/the-smart-trick-of-u31-that-no-one-is-discussing