There was no recorded wreck at this spot so it had been claimed to your pertinent authorities, such as the Receiver of the Wreck (RoW). U-31 evaded a spread of 4 torpedoes fired by HMS Trident about 15 miles (24 km) south of Lorient and was then forced to dive https://u3116943.activosblog.com/33120226/the-smart-trick-of-u31-that-nobody-is-discussing