SM U-82
Introduction '''SM ''U-82''''' was a Type U 81 U-boat of the Imperial German Navy during World War I.She was launched on 1 July 1916 and commissioned on 16 September 1916 under Hans Adam. She was assigned to IV Flotilla on 21 November 1916, serving with them throughout the war. She carried out 11 patrols during the war, commanded from 30 April 1918 by Heinrich Middendorff. SM ''U-82'' sank 36 ships for a total of , and damaging a further three ships for 32,914 tons. Among the ships she damaged was the USS ''Mount Vernon'', the former SS ''Kronprinzessin Cecilie''. At 18,372 tons she was one of the largest ships to be hit by a U-boat during the war.She was surrendered to the British on 16 January 1919 under the terms of the armistice, and was broken up at Blyth between 1919 and 1920.
Design German Type U 81 submarines were preceded by the shorter Type UE I submarines. ''U-82'' 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-82'' was fitted with four  torpedo tubes (one at the starboard bow and one starboard stern), twelve to sixteen torpedoes, and one  SK L/45 deck gun. She had a complement of thirty-five (thirty-one crew members and four officers).
Summary of raiding history DateNameNationalityTonnageFate5 December 1916''Dorit''242Sunk5 December 1916''Ella''879Sunk6 December 1916''Christine''196Sunk6 December 1916''Robert''353Sunk10 December 1916''Gerda''287Sunk2 January 1917''Omnium''8,719Sunk3 January 1917''Viking''761Sunk4 January 1917''Calabro''1,925Sunk5 January 1917''Ebro''1,028Sunk6 January 1917''Beaufront''1,720Sunk23 April 1917''Marita''1,759Sunk24 April 1917''Thistleard''4,136Sunk25 April 1917''Hackensack''4,060Sunk4 May 1917''Ellin''4,577Damaged11 June 1917HMS ''Zylpha''2,917Sunk13 June 1917''Storegut''2,557Sunk14 June 1917''Ortolan''1,727Sunk14 June 1917''Taplow''2,981Sunk15 June 1917''Albertine Beatrice''1,379Sunk15 June 1917''Westonby''3,795Sunk16 June 1917''Jessie''2,256Sunk18 June 1917''Thistledhu''4,026Sunk25 July 1917''Monkstone''3,097Sunk31 July 1917''Orubian''3,876Sunk31 July 1917HMS ''Quernmore''7,302Sunk19 September 1917''Saint Ronald''4,387Sunk15 November 1917''De Dollart''243Sunk19 February 1918''Glencarron''5,117Sunk19 February 1918''Philadelphian''5,165Sunk8 April 1918''Tainui''9,965Damaged10 April 1918''Westfield''3,453Sunk5 June 1918''Argonaut''4,826Sunk7 June 1918''Brisk''1,662Sunk8 June 1918''Hunsgrove''3,063Sunk8 June 1918''Saima''1,147Sunk4 September 1918''Dora''7,037Sunk5 September 191818,372Damaged12 September 1918''Galway Castle''7,988Sunk16 September 1918''Madryn''2,244Sunk
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