There was no recorded wreck at this location so it was documented for the pertinent authorities, such as the Receiver with the Wreck (RoW). They have been considered great boats. During the war 8 were being sunk, a few surrendered and had been ultimately scrapped, and two have been viewed https://remingtoncukyo.gynoblog.com/31582734/new-step-by-step-map-for-u31