There was no recorded wreck at this site so it was described on the related authorities, including the Receiver on the Wreck (RoW). U-31 evaded a distribute of 4 torpedoes fired by HMS Trident about 15 miles (24 km) south of Lorient and was then compelled to dive when fired https://shanegvicm.diowebhost.com/89123447/u31-fundamentals-explained