SM U-120
Introduction '''SM ''U-120''''' was a Type UE II long-range minelayer submarine of the Imperial German Navy. She was built at Hamburg, Germany, by Aktiengesellschaft Vulcan and launched on 20 June 1918.She was commissioned in the Imperial German Navy on 31 August 1918 with Kapitänleutnant Hans von Mellenthin in command. She had a short-lived career, not being assigned to any flotillas, nor achieving any successful attacks on enemy shipping, before the end of the First World War. She was surrendered to Italy on 22 November 1918, and was broken up in April 1919 at La Spezia.
Design German Type UE II submarines were preceded by the shorter Type UE I submarines. ''U-120'' had a displacement of  when at the surface and  while submerged. She had a total length of , a beam of , a height of , and a draught of . The submarine was powered by two  engines for use while surfaced, and two  engines for use while submerged. She had two shafts and two  propellers. She was capable of operating at depths of up to .The submarine had a maximum surface speed of  and a maximum submerged speed of . When submerged, she could operate for  at ; when surfaced, she could travel  at . ''U-120'' was fitted with four  torpedo tubes (fitted at its bow), fourteen torpedoes, two  mine chutes (fitted at its stern), forty-two mines, one  SK L/45 deck gun, and 494 rounds. She had a complement of forty (thirty-six crew members and four officers).
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