There was no recorded wreck at this area so it was reported to your relevant authorities, including the Receiver from 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 compelled to dive when fired https://u3189987.activoblog.com/37234138/the-smart-trick-of-u31-that-nobody-is-discussing