SM UC-76 was a German Type UC II minelaying submarine or U-boat in the German Imperial Navy () during World War I. The U-boat was ordered on 12 January 1916 and was launched on 25 November 1916. She was commissioned into the German Imperial Navy on 17 December 1916 as SM UC-76."SM" stands for "Seiner Majestät" () and combined with the U for Unterseeboot would be translated as His Majesty's Submarine. In two patrols UC-76 was credited with sinking 15 ships, either by torpedo or by mines laid. UC-76 was surrendered on 1 December 1918 and broken up at Briton Ferry in 1919 – 20.
Design A Type UC II submarine, UC-76 had a displacement of when at the surface and while submerged. She had a length overall of , a beam of , and a draught of . The submarine was powered by two six-cylinder four-stroke diesel engines each producing (a total of ), two electric motors producing , and two propeller shafts. She had a dive time of 30 seconds and was capable of operating at a depth of .
The submarine had a maximum surface speed of and a submerged speed of . When submerged, she could operate for at ; when surfaced, she could travel at . UC-76 was fitted with six mine tubes, eighteen UC 200 mines, three torpedo tubes (one on the stern and two on the bow), seven torpedoes, and one Uk L/30 deck gun. Her complement was twenty-six crew members.
Summary of raiding history DateNameNationalityTonnageMerchant ship tonnages are in gross register tons. Military vessels are listed by tons displacement.Fate7 March 1917Naamah269Sunk7 March 1917Vulcana219Sunk9 March 1917Dana753Sunk12 March 1917725Sunk12 April 1917Caliban215Sunk12 April 1917Chinkiang125Sunk12 April 1917Crown Prince103Sunk12 April 1917Equerry168Sunk12 April 1917Fife Ness123Sunk12 April 1917Largo Bay125Sunk12 April 1917Lillian120Sunk12 April 1917Osprey106Sunk13 April 1917HMT Pitstruan206Sunk17 April 1917Robert1,445Sunk17 April 191710,422Damaged18 April 1917Bergensgut2,029Sunk
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