Operation Deadlight.

Operation Deadlight was the code name for the scuttling of the unwanted German U-boats which the allies got their hands on after the end of World War Two (WWII). Most of these (if not all) operations took place from Lisahally, Northern Ireland or Loch Ryan, Scotland. About 121 German U-boats were scuttled during the fall and and winter of 1945-1946 out of Ireland.

For some reason this is possibly the one aspect of the U-boat war that is the most difficult to get accurate information on. Some of the U-boats scuttled seemed to have simply been "dumped" wherever seemed ideal at the time while others clearly went into pre-selected locations.

In the foreground from left to right U-2502, U-3514 and U-2518 and in the background U-2506, U-2511 and U-3041. U-3041 and U-2518 were assigned to the USSR and France but the other 4 boats were sunk in early 1946 during Operation Deadlight.

On Feb 12. 1946 at 1004hrs. U-3514 received the distinction of being the last U-Boat sunk during Operation Deadlight.

Out of the 154 German U-boats surrendered at the end of the war, about 115 were sunk in deep water near Ireland in 1945-1946 during Operation Deadlight. The 39 or so were used for various tasks and then sunk thereafter (like U-1105 sunk on explosives trial in the Potomac in 1948).

Above is a map which shows the known locations of scuttled U-boats during Operation Deadlight. The numbers written on the map are the number of U-boats that I know were scuttled at each location. As I get more and more information on these locations more and more red dots will be added. But even in this form this is a pretty good indicator.

Special thanks to mr. Mason Smith for information on U-1230.

Fonte.