SM UC-67 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 6 August 1916. She was commissioned into the German Imperial Navy on 10 December 1916 as SM UC-67."SM" stands for "Seiner Majestät" () and combined with the U for Unterseeboot would be translated as His Majesty's Submarine. In eleven patrols UC-67 was credited with sinking 54 ships, either by torpedo or by mines laid. UC-67 was surrendered on 16 January 1919 and broken up at Briton Ferry in 1919 – 20.
Design A Type UC II submarine, UC-67 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-67 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 March 1917Primeira Flor D’Abril20Sunk17 March 1917Restaurador25Sunk17 March 1917Rita Segunda27Sunk17 March 1917Senhora Do Rosario22Sunk18 March 1917Victoria1,226Sunk25 March 1917Queen Eugenie4,359Sunk26 April 1917Chertsey3,264Sunk27 April 1917Glencluny4,812Sunk27 April 1917Karuma2,995Sunk23 May 1917Elmmoor3,744Sunk26 May 19178,271Sunk14 June 1917Lowther Castle4,439Damaged30 June 1917Il Nuovo Gasperino Gabriele35Sunk1 July 1917Angela Madre81Sunk1 July 1917Miltiades Embiricos3,448Sunk3 July 1917City of Cambridge3,788Sunk7 July 1917Milano143Sunk7 July 1917Southina3,506Sunk12 July 1917Francesco151Sunk12 July 1917Leonardo G.51Sunk14 August 1917Lombardo3,029Sunk17 August 1917Madeleine III149Damaged18 August 1917Politania3,133Sunk21 August 1917Goodwood3,086Sunk23 August 1917Fratelli Danieli94Sunk4 October 1917Stella216Sunk11 November 1917Southgate3,661Damaged25 November 1917Iniziativa24Sunk1 December 1917PhoebusUnknownSunk2 December 1917La Rance2,610Sunk3 December 1917Carmen5,479Sunk5 December 1917Greenwich2,938Sunk8 December 1917La Vittoria53Sunk20 January 1918Faustina B.105Sunk23 January 1918Kerbihan195Sunk23 January 1918La Drome3,236Sunk24 January 19181,160Sunk26 January 1918Ministro Iriondo1,753Sunk27 January 1918Attilio210Sunk28 January 1918Urania373Sunk29 January 1918Giuseppe B.39Sunk29 January 1918Maria S.S. Del Paradiso114Sunk10 February 1918Romford3,035Sunk9 March 1918Jolanda187Sunk9 March 1918Pasqualina80Sunk11 March 1918Tripoli824Sunk14 March 1918Jeanne145Sunk15 March 1918Armonia5,226Sunk20 March 1918Matteo Renato Imbriani5,882Sunk22 March 1918S. Giuseppe C.53Sunk24 March 1918834Sunk25 March 1918Francesco Antonio Aiello44Sunk25 March 1918L’iniziatore47Sunk26 March 1918Elisabetha45Sunk6 July 1918Bertrand3,613Sunk7 September 1918Bellbank3,250Sunk16 September 1918G. Voyazides3,040Sunk
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