The U 853 was a type IXC German U-Boat. Commissioned on June 25, 1943.
On May 4, 1945, with WW II quickly coming to an end, Admiral Karl Doenitz gave the following order: 'All U-boats cease fire at once. Stop all hostile action against allied shipping'.
On May 5, the U-853, which had been prowling the waters northeast of Block Island, torpedoed and sank the coiler Black Point, killing twelve men.
Sunk 6 May, 1945 in the North Atlantic by depth charges from the US destroyer escort USS Atherton.
U 853 destroyed
Within an hour, the U.S. Navy Taskforce, which was in the area, began hunting the 853. The Atherton found her within three hours and the attack began. The Navy used Hedgehogs (rocket launched projectiles), depth charges, three ships and two blimps. After an assault with depth charges, various bits of debris floated to the surface including a pillow, a life jacket and the U-boat's captain's hat. This was only a trick as the Navy's sonar then caught the sub moving east. Again and again, resulting in a cat and mouse type game to the death, the Navy's sonar would locate the U-boat and the attacks would resume.
The first attack started at 8:29 PM. The Navy continued its assault until 10:45 AM the next day. The U-853 was declared officially dead. The Navy vessels headed for port with brooms at masthead, the Navy's symbol for a clean sweep.
On May 6, 1945, Navy divers from the vessel Penguin dove on the 853 and attempted to penetrate the wreck in order to recover records from the captain's safe. These divers were using surface supplied air and couldn't easily fit through the tight hatches of the submarine.
The next day, Ed Bockelman, the smallest diver on the Penguin, volunteered himself for the task. He was accompanied by Commander George Albin. Bockelman was able to squeeze through the conning towers hatch, but the floating lifeless bodies of German crewmen blocked further penetration. For years after her sinking, rumors spread that the U-853 had a cargo of treasure on board. One story claimed that $500,000 in jewels and U.S. currency were hidden in 88 MM shell cases, sealed in wax. Another rumor was that there was $1,000,000 in hidden mercury on board, sealed in stainless steel flasks. These rumors have spurred many salvage attempts over the years, none of which have been successful.
IXC 40 German U boot.
length: 251.9 feet - wide: 22.5 feet - 740 ton
Intended as long-range mine-layers used as long-range cargo.