SM UC-16 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 1 February 1916. She was commissioned into the German Imperial Navy on 18 June 1916 as SM UC-16."SM" stands for "Seiner Majestät" () and combined with the U for Unterseeboot would be translated as His Majesty's Submarine. In 13 patrols UC-16 was credited with sinking 43 ships, either by torpedo or by mines laid. UC-16 disappeared in October 1917. A postwar German study concluded that UC-16 probably sank after striking a mine off Zeebrugge
Design Like all pre-UC-25 Type UC II submarines, UC-16 had a displacement of when at the surface and while submerged. She had a total length of , 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 35 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-16 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.Fate23 September 1916Andromeda149Sunk23 September 1916Beechwold129Sunk23 September 1916Britannia III138Sunk23 September 1916Cockatrice115Sunk23 September 1916Mercury183Sunk23 September 1916Phoenix117Sunk23 September 1916Refino182Sunk23 September 1916Rego176Sunk23 September 1916Restless125Sunk23 September 1916Viella144Sunk23 September 1916Weelsby122Sunk19 October 191613,405Sunk22 October 1916Fortuna1,254Sunk11 November 1916Daphne1,388Sunk11 November 1916Veronica27Sunk13 November 1916Marie Therese156Sunk14 November 1916N.D. De Bon Secours81Sunk14 November 1916Nominoe327Sunk14 November 1916Salangane125Sunk16 November 1916Lelia79Sunk16 November 1916Vasco1,914Sunk26 November 1916Caloric7,012Damaged28 December 1916Suffolk7,573Damaged30 December 1916Aspenleaf7,535Damaged18 January 1917Taormina2,457Sunk19 January 1917Anna1,237Sunk19 January 1917Reinunga1,147Sunk19 January 1917Theresdal1,762Sunk21 January 1917Couronne169Sunk22 January 1917Juno2,345Damaged23 January 1917Ymer1,123Sunk15 February 1917Leven775Sunk26 February 1917Sea Gull144Sunk26 February 1917HMT St. Germain307Damaged15 March 1917Coonagh1,412Sunk20 April 1917HMS Glen112Damaged27 July 1917Dirk81Sunk27 July 1917Dirk van Duyne116Sunk27 July 1917Jan104Sunk27 July 1917Majoor Thomson110Sunk27 July 1917President Commissaris van den Burgh111Sunk27 July 1917Sterna III111Sunk28 July 1917Neptunus I80Sunk16 August 1917Manchester Engineer4,465Sunk17 August 1917Susie41Sunk18 August 1917Ardens1,274Sunk4 September 1917Bishopston2,513Sunk7 September 1917Hinemoa2,283Sunk7 September 1917Vestfjeld2,063Sunk
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