SM UB-112 was a German Type UB III submarine or U-boat in the German Imperial Navy () during World War I. She was commissioned into the German Imperial Navy on 16 April 1918 as SM UB-112.
UB-112 was surrendered to the Allies at Harwich on 24 November 1918 in accordance with the requirements of the Armistice with Germany; she was used for explosives trials off Falmouth on 20 November and 1 December 1920, after which the boat was dumped on Castle Beach. The wreck was sold for scrap to R. Roskelly & Rodgers on 19 April 1921 for £125, but remains survive in situ.
Construction
She was built by Blohm & Voss of Hamburg and following just under a year of construction, launched at Hamburg on 15 September 1917. UB-112 was commissioned in the spring the next year under the command of Kptlt. Wilhelm Rhein. Like all Type UB III submarines, UB-112 carried 10 torpedoes and was armed with a deck gun. UB-112 would carry a crew of up to 3 officer and 31 men and had a cruising range of . UB-112 had a displacement of while surfaced and when submerged. Her engines enabled her to travel at when surfaced and when submerged.
Summary of raiding history DateNameNationalityTonnageTonnages are in gross register tonsFate21 August 1918The Stewart’s Court813Sunk22 August 1918Prunelle579Sunk23 August 1918Heros351Sunk30 September 1918Atlantico319Sunk1 October 1918Aldebaran1,683Sunk1 October 1918Gjertrud593Sunk2 October 1918Bamse1,001Sunk2 October 1918Poljames856Sunk3 October 1918Atlantis1,171Sunk3 October 1918Westwood1,968Sunk3 October 1918A.E. Mc Kinstry1,960Damaged4 October 1918Nanna1,125Sunk
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