According to U-Boat.net: ... U-861 was a type IXD2 U-boat built at Bremen (w.r. # 1067), laid down 15 July 1942 and commissioned 2 Semptember the following year. She had two war patrols, and was surrendered on 9 May, 1945 at Trondheim, Norway. On May 29 she was transferred to Lisahally, Northern Ireland, for Operation Deadlight. On 31 December of that same year she was scuttled as part of the operation. Here's some pictures of it from U-boat.net: http://www.uboat.net/gallery/index.html?gallery=u861&img=1 The pictures of those propellors are pretty impressive IMHO