SM U-75
Introduction '''SM ''U-75''''' was one of the 329 submarines serving in the Imperial German Navy in World War I. ''U-75'' was engaged in naval warfare and took part in the First Battle of the Atlantic. On her first mission, ''U-75'' laid the mine that sank the cruiser  during her voyage to Russia carrying British Secretary of State for War Lord Kitchener. The cruiser sank at  west of the Orkney Islands with nearly total loss of life in a force 9 gale.
Design German Type UE I submarines were preceded by the longer Type U 66 submarines. ''U-75'' 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. She had two propeller shafts. 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-75'' was fitted with two  torpedo tubes (one at the port bow and one starboard stern), four torpedoes, and one  SK L/30 deck gun. She had a complement of thirty-two (twenty-eight crew members and four officers).
Summary of raiding history DateNameNationalityTonnageFate5 June 191610,850Sunk22 June 1916HMD ''Laurel Crown''81Sunk7 August 1916HMT ''John High''228Sunk12 August 1916''Kovda''1,125Sunk20 September 1916''Etton''2,831Sunk16 November 1916''Fenja''433Sunk22 November 1916''Reserv''1,700Captured as prize23 November 1916''Arthur''1,435Sunk9 April 1917''Ganslei''1,273Sunk15 April 1917HMT ''Arctic Prince''194Damaged10 August 1917''Solglimt''1,037Sunk16 August 1917''Palatine''2,110Sunk3 September 1917''Treverbyn''4,163Sunk22 November 1917''King Idwal''3,631Sunk10 December 1917''Aureole''3,998Damaged2 September 1918''Ariadne Christine''3,550Damaged
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