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 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 DateNameNationalityTonnageMerchant ship tonnages are in gross register tons. Military vessels are listed by tons displacement.Fate5 December 1916Dorit242Sunk5 December 1916Ella879Sunk6 December 1916Christine196Sunk6 December 1916Robert353Sunk10 December 1916Gerda287Sunk2 January 1917Omnium8,719Sunk3 January 1917Viking761Sunk4 January 1917Calabro1,925Sunk5 January 1917Ebro1,028Sunk6 January 1917Beaufront1,720Sunk23 April 1917Marita1,759Sunk24 April 1917Thistleard4,136Sunk25 April 1917Hackensack4,060Sunk4 May 1917Ellin4,577Damaged11 June 1917HMS Zylpha2,917Sunk13 June 1917Storegut2,557Sunk14 June 1917Ortolan1,727Sunk14 June 1917Taplow2,981Sunk15 June 1917Albertine Beatrice1,379Sunk15 June 1917Westonby3,795Sunk16 June 1917Jessie2,256Sunk18 June 1917Thistledhu4,026Sunk25 July 1917Monkstone3,097Sunk31 July 1917Orubian3,876Sunk31 July 1917HMS Quernmore7,302Sunk19 September 1917Saint Ronald4,387Sunk15 November 1917De Dollart243Sunk19 February 1918Glencarron5,117Sunk19 February 1918Philadelphian5,165Sunk8 April 1918Tainui9,965Damaged10 April 1918Westfield3,453Sunk5 June 1918Argonaut4,826Sunk7 June 1918Brisk1,662Sunk8 June 1918Hunsgrove3,063Sunk8 June 1918Saima1,147Sunk4 September 1918Dora7,037Sunk5 September 191818,372Damaged12 September 1918Galway Castle7,988Sunk16 September 1918Madryn2,244Sunk
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