There was no recorded wreck at this locale so it had been documented into the related authorities, including the Receiver of the Wreck (RoW). They were being considered superb boats. Through the war eight had been sunk, three surrendered and were ultimately scrapped, and two were considered lacking. Now a https://charlieyvlyg.madmouseblog.com/14650732/the-smart-trick-of-u31-that-nobody-is-discussing