I tried this mission earlier with no success there were DD's everywhere so I went looking for information. This is a very interesting story in my opinion which catapulted the CO to near star status in Germany. Hitler even personally gave him a medal along with a dinner for his crew.
The link is to the story of 'The Bull of Scapa Flow' about Kapitänleutnant Günther Prien the Commanding Officer, U-47 who commanded the mission. This goes into detail on the timing and some would say luck that played a part in its success.
http://www.donhollway.com/scapaflow/
I also found another map which shows the depths to be found in the area.
Hopefully some members might find this history interesting to read about as I did and will enjoy it.
This is my first posting hopefully I did not break any rules or what not
