SM U-88
Introduction '''SM ''U-88''''' was a Type U 87 submarine built for the Imperial German Navy (''Kaiserliche Marine'') in World War I. ''U-88'' was engaged in the naval warfare and took part in the First Battle of the Atlantic. ''U-88'' is most notable for sinking and taking with her Kapitänleutnant Walther Schwieger, responsible for sinking the  when he was commander of . The submarine came to an end on 5 September 1917 when she struck a British mine and sank in the North Sea north of Terschelling at . Everyone on board ''U-88'' was killed.
Design German Type U 87 submarines were preceded by the shorter Type U 81 submarines. ''U-88'' 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-88'' was fitted with four  torpedo tubes (two at the bow and two at the stern), ten to twelve torpedoes, one  SK L/45 deck gun, and probably one  SK L/30 deck gun. She had a complement of thirty-six (thirty-two crew members and four officers).
Summary of raiding history DateNameNationalityTonnageFate23 May 1917''Hector''1,146Sunk25 May 19176,329Sunk28 May 1917''Roma''417Damaged29 May 1917''Ashleaf''5,768Sunk31 May 1917''Jeanne Cordonnier''2,194Sunk31 May 1917''Miyazaki Maru''7,892Sunk1 June 1917''Cavina''6,539Sunk6 June 1917''Eemdijk''3,048Sunk7 June 1917''John Bakke''1,611Sunk29 June 1917''Escondido''1,066Sunk3 July 1917''Iceland''1,501Sunk7 July 1917''Coral Leaf''428Damaged13 July 1917''Ceres''1,166Sunk16 July 1917''Vesta''1,122Sunk
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