SM U-122
Introduction '''SM ''U-122''''' was a Type UE II long-range minelayer submarine of the Imperial German Navy during World War I. ''U-122'' was engaged in naval warfare and took part in the First Battle of the Atlantic. ''U-122'' succeeded in sinking one ship during her career for a total of . ''U-122'' was surrendered to the Allies at Harwich on 26 November 1918 in accordance with the requirements of the Armistice with Germany. She was later laid up at Chatham until towed out round into the English Channel and scuttled off the Isle of Wight on 1 July 1921.
Design German Type UE II submarines were preceded by the shorter Type UE I submarines. ''U-122'' 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-122'' was fitted with four  torpedo tubes (fitted at the bow), twelve torpedoes, two  mine chutes (fitted at the 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).
Summary of raiding history DateNameNationalityTonnageFate18 October 1918''Njordur''278Sunk
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