U-23 was the third of three U-Boats that the Germans tried to sell to the Turkish government after evacuating Konstanza which the Germans used for Black Sea operations. The other two U-Boats, U-19 and U-20, suffered the same fate as U-23 as all three were scuttled near Erekli off the coast of Turkey on 10 September 1944 when the ships ran out of fuel.
Charles McCain is a Washington DC based freelance journalist and novelist. He is the author of "An Honorable German," a World War Two naval epic. You can read more of his work on his website: http://charlesmccain.com/ View all posts by Charles McCain