SM UB-37 was a German Type UB II submarine or U-boat in the German Imperial Navy () during World War I. The U-boat was ordered on 22 July 1915 and launched on 28 December 1915. She was commissioned into the German Imperial Navy on 17 June 1916 as SM UB-37."SM" stands for "Seiner Majestät" () and combined with the U for Unterseeboot would be translated as His Majesty's Submarine.
The submarine sank 31 ships in ten patrols, and was itself sunk by British Q ship in the English Channel on 14 January 1917.
The wreck of UB-37 was identified by marine archaeologist Innes McCartney in 1999.
Design A Type UB II submarine, UB-37 had a displacement of when at the surface and while submerged. She had a total length of , a beam of , and a draught of . The submarine was powered by two Benz six-cylinder diesel engines producing a total , two Siemens-Schuckert electric motors producing , and one propeller shaft. 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 . UB-37 was fitted with two torpedo tubes, four torpedoes, and one Uk L/30 deck gun. She had a complement of twenty-one crew members and two officers and a 42-second dive time.
Summary of raiding history DateNameNationalityTonnageMerchant ship tonnages are in gross register tons. Military vessels are listed by tons displacement.Fate21 July 1916Samsø388Damaged22 July 1916Bams308Sunk22 July 1916Ida302Sunk22 July 1916Juno355Sunk22 July 1916Preference222Sunk22 July 1916Subra580Sunk9 August 1916Danevang1,247Sunk11 August 1916Rufus202Sunk13 August 1916Fremad104Sunk13 August 1916Pepita261Sunk13 August 1916Respit473Sunk10 September 1916Zeemeeuv400Captured as prize23 September 1916Dresden807Sunk23 September 1916Pearl613Sunk24 September 1916Oceanien60Sunk25 September 1916Afrique1,743Sunk24 October 1916Twig128Sunk13 November 1916Our Boys63Sunk13 November 1916Superb50Sunk28 November 1916Diligence42Sunk28 November 1916Amphitrite44Sunk28 November 1916Catena36Sunk28 November 1916Provident38Sunk28 November 1916Sea Lark42Sunk28 November 1916Lynx43Damaged30 November 1916Concord51Sunk1 December 1916Erich Lindøe1,097Sunk4 December 1916Fofo2,615Sunk6 December 1916Halfdan1,305Sunk7 December 1916Marguerite Dollfus1,948Sunk5 January 1917Asta573Sunk7 January 1917Hansi1,142Sunk10 January 1917Tuborg2,056Sunk14 January 1917Norma1,997Sunk14 January 19171,191Damaged
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