Lucky in some way that the U.S. had not entered the war at that stage as it would have been sunk possibly with all hands still aboard! Certainly, during the next war, the U-boat threat was was a very serious proposition to Britain. There was always a bit of friction with the Republic of Ireland, who were neutral, in allowing U-boats to use Irish ports to re-fit and then go out into the Atlantic. We may not have liked the U-boat crews but one had to admire the risks they took. Not a job I would have envied! Lagopus.....