SM UC-29 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 29 August 1915 and was launched on 15 July 1916. She was commissioned into the German Imperial Navy on 15 August 1916 as SM UC-29."SM" stands for "Seiner Majestät" () and combined with the U for Unterseeboot would be translated as His Majesty's Submarine. In an eight-month career, the UC-29 performed seven combat patrols into the Atlantic Ocean during the German war on Allied trade (Handelskrieg). In these patrols she was very successful, sinking 18 allied ships, totalling 21,909 GRT. She also damaged 4 ships of 17,154 GRT. On 7 June 1917 she torpedoed the British Q-ship off the Irish coast, but was ambushed by her hidden armaments when she approached too close and was sunk with 23 hands. Pargust was commanded by British submarine hunter Gordon Campbell and had on board Ronald Niel Stuart and William Williams, who were awarded the Victoria Cross for their actions in the engagement.
Her wreck lies in Cork Harbour, Ireland.[Irish Wrecks Online http://www.irishwrecksonline.net/Lists/CorkListC.htm]
Design A Type UC II submarine, UC-29 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 48 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-29 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.Fate17 November 1916Canganian1,143Sunk23 January 1917Clan Shaw3,943Sunk24 January 1917Sunniva589Sunk5 February 1917Primrose136Sunk9 February 1917HMT Yesso229Sunk10 February 1917San Fraterno9,587Damaged11 February 1917Norwood798Sunk11 February 1917Roanoke3,455Damaged1 March 1917Herbert Ingram142Sunk1 March 1917Redcap199Sunk3 March 1917HMT Northumbria211Sunk14 March 1917Storaas3,041Sunk24 April 1917Upton Castle145Sunk27 April 1917Nidelven1,262Sunk27 April 1917Ragnhild1,117Sunk29 April 1917Carbo I1,385Sunk1 May 1917Firelight1,143Sunk3 June 1917Elisabeth2,061Sunk3 June 1917HMS Mavis1,295Damaged4 June 1917Songvand2,206Sunk7 June 19172,817Damaged3 August 1917Hornchurch2,159Sunk
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