There was no recorded wreck at this area so it had been claimed for the applicable authorities, such as the Receiver on the Wreck (RoW). They have been considered outstanding boats. During the war eight ended up sunk, 3 surrendered and were finally scrapped, and two had been deemed lacking. https://damienjxmub.azzablog.com/34320218/new-step-by-step-map-for-u31