İmalatçı=Blohm& Voss,Hamburg,Yard 322 Sipariş=23/9/1916 Denize İnme=4/11/1917 Donanmaya Katılma=24/5/1918 Ağırlık=516 ton Boy=55.30 m En=5.80 m S.Ç=3.68 m M.G=1100 HP Hız=13.6 knot Personel=35 Silahlar=5xTT ve1x88 mm top
15 Aug 1918 - 4 Oct 1918 Flandern I Flotilla
4 Oct 1918 - 28 Oct 1918 III Flotilla
Sinking:"Towards the end of October 1918, as peace negotiations were taking place, the higher echelons of the Imperial German Navy, in what they saw they saw as an attempt to restore their honour, planned an all out attack on the British Grand Fleet. The plan called for twenty-four U-boats to carry out certain tasks before the High Seas Fleet put to sea. On 25 October 1918 submarine UB-116 left Heligoland under the command of Oberleutnant zur See Hans Joachim Emsmann. Emsmann’s task was to enter the British Naval Base at Scapa Flow, off the north coast of Scotland, and attack larger ships, so as to weaken the British fleet prior to the attack by the German High Seas Fleet. On 28 October Emsmann’s submarine entered Hoxa Sound, Scapa Flow. The British had laid a minefield in Hoxa Sound. The minefield had underwater microphones called hydrophones, allowing shore-based operators to pick up the sound of an approaching submarine. UB-116 was picked up by hydrophone at 21.21. At 23.32 an electrical cable laid in loops on the seabed sent a signal to a device called a galvanometer, indicating the UB-116 was in the minefield. The operator flipped a switch and a row of mines exploded. “The next morning the surface was covered with oil and air bubbles were rising steadily. Patrol boats dropped depth charges that brought debris to the surface, including a jacket. British divers visited the wreck on 29 October and on 4 November they returned and recovered UB-116’s logbook."
Conditions:Today, the boat lies in about 28 metres of water,but there is now little left of the wreck of UB-116 off Hoxa, at the entrance to Pan Hope Bay.She was sold for salvage in 1969 and later the Royal Navy made safe the 10 live torpedoes by a controlled explosion.Sections of plating, together with pipes, wires and broken switch-boxes are all that remain on the seabed and the only really identifiable parts are the ballast tanks and a deck gun.These are unlikely to be much help in solving the mystery of UB-116. The last U-boat to be sunk in the First War.