abstract
| - SM UB-42 was a Type UB II submarine or U-boat for the German Imperial Navy () during World War I. UB-42 operated in the Mediterranean and the Black Seas during the war. She was broken up at Malta in 1920. UB-42 was ordered in July 1915 and was laid down at the AG Weser shipyard in Bremen in September. UB-42 was in length and displaced between , depending on whether surfaced or submerged. She was equipped to carry a complement of four torpedoes for her two bow torpedo tubes and had an deck gun. As part of a group of six submarines selected for Mediterranean service, UB-42 was broken into railcar sized components and shipped to Pola where she was assembled, launched and commissioned in March 1916. In 21 patrols during the war, UB-42 sank ten ships of , captured one 97-ton vessel as a prize, and damaged Veronica a British Acacia-class sloop. In October 1916, UB-42 delivered five Georgians who had gold to help finance a Georgian independence movement. After the surrender of the Ottoman Empire in late October 1918, UB-42 fled to Sevastopol, where she was surrendered in November. UB-42 was taken to Malta, where she was broken up in 1920.
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