There was no recorded wreck at this site so it was claimed for the appropriate authorities, including the Receiver with the Wreck (RoW). U-31 evaded a distribute of four torpedoes fired by HMS Trident about fifteen miles (24 km) south of Lorient and was then pressured to dive when fired https://griffinhyqep.worldblogged.com/40204074/u31-fundamentals-explained