SM U-105
Introduction '''SM ''U-105''''' was one of the 329 submarines serving in the Imperial German Navy in World War I. ''U-105'' was engaged in the naval warfare and took part in the First Battle of the Atlantic. After the war she was ceded to France, where the unit served as '''''Jean Autric''''' until being scrapped in 1938.On 17 October 1917, SM ''U-105'' met , an American troop transport, during the return leg of a voyage to Europe. ''Antilles'' was torpedoed by the submerged U-boat and went down just five minutes after being hit. A total of 67 persons were killed in the sinking, making the destruction of ''Antilles'' the event costing the single greatest number of American lives in the war to that date.
Design German Type U 93 submarines were preceded by the shorter Type U 87 submarines. ''U-105'' had a displacement of  when at the surface and  while submerged. She had a total length of , a pressure hull 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. The boat had two propeller 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-105'' was fitted with six  torpedo tubes (four at the bow and two at the stern), twelve to sixteen torpedoes, one  SK L/45, and one  SK L/30 deck gun. She had a complement of thirty-six (thirty-two crew members and four officers).
Summary of raiding history DateNameNationalityTonnageFate14 October 1917''Ecaterini C. D.''3,739Sunk15 October 1917''Saint Paul''79Sunk15 October 1917''St. Helens''1,497Sunk17 October 19176,878Sunk19 December 1917''Vinovia''7,046Sunk22 December 1917''Colemere''2,120Sunk24 December 1917''Canova''4,637Sunk28 December 1917''Lord Derby''3,757Sunk24 February 1918''Sarpfos''1,458Sunk26 February 1918''Dalewood''2,420Sunk27 February 1918''Largo''1,764Sunk1 March 1918''Penvearn''3,710Sunk2 March 1918''Carmelite''2,583Sunk29 April 1918''Christiana Davis''86Sunk29 April 1918''Johnny Toole''84Sunk7 May 1918''Nantes''1,580Sunk7 May 1918''Saxon''1,595Sunk2 July 1918''Pieuse Paysanne''unknownDamaged2 July 1918''Albert 1er''unknownDamaged31 August 1918''Milwaukee''7,323Sunk7 September 1918''Ruysdael''3,478Sunk
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