There was no recorded wreck at this place so it had been described to your relevant authorities, such as the Receiver of the Wreck (RoW). U-31 evaded a spread of 4 torpedoes fired by HMS Trident about fifteen miles (24 km) south of Lorient and was then compelled to dive https://jeffreynhyoh.ssnblog.com/33231420/u31-fundamentals-explained