SM UB-41 was a German Type UB II submarine or U-boat in the German Imperial Navy () during World War I.
Design A Type UB II submarine, UB-41 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 Körting 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-41 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.
Construction and career The U-boat was ordered on 22 July 1915 and launched on 6 May 1916. She was commissioned into the German Imperial Navy on 25 August 1916 as SM UB-41.
The submarine sank eight ships in thirteen patrols. They included the William Cory and Son collier , which UB-41 torpedoed in the North Sea off Robin Hood's Bay on 8 September 1917. UB-41 was reported missing on 5 October 1917. The same day, a large explosion was observed from the coast at Scarborough, England. The case of her loss was either an internal explosion, or she struck a mine, possibly a German one, and sank in the North Sea on 5 October 1917.
Her wrecksite was discovered in 1989 and surveyed in 1997 and 2003. The vessel is broken into two sections, at degree angles laying on the starboard side, and showing signs of impact damage.
Summary of raiding history DateNameNationalityTonnageTonnages are in gross register tonsFate21 November 1916Thyholmen259Captured as prize18 January 1917Cetus139Damaged19 April 1917Ellida1,124Sunk22 May 1917Lanthorn2,299Sunk23 May 1917Monarch1,318Sunk12 June 1917Alwyn73Sunk13 June 1917Silverburn284Sunk14 June 1917Angantyr1,359Sunk6 August 1917Talisman153Sunk8 September 1917Harrow1,777Sunk3 October 1917Clydebrae502Damaged
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