There was no recorded wreck at this place so it was claimed on the related authorities, including the Receiver on the Wreck (RoW). U-31 evaded a unfold of 4 torpedoes fired by HMS Trident about fifteen miles (24 km) south of Lorient and was then compelled to dive when fired https://shanegvicm.diowebhost.com/89123447/u31-fundamentals-explained