SM UB-61 was a German Type UB III submarine or U-boat in the German Imperial Navy () during World War I. She was commissioned into the German Imperial Navy on 23 June 1917 as SM UB-61.
The submarine conducted three patrols and sank two ships during the war for a total loss of .
UB-61 was struck by a mine on 29 November 1917 at and sunk with all hands lost.
Construction
UB-61 was ordered by the GIN on 20 May 1916.
She was built by AG Vulcan of Hamburg and following just under a year of construction, launched at Hamburg on 28 April 1917. UB-61 was commissioned later that same year . Like all Type UB III submarines, UB-61 carried 10 torpedoes and was armed with a deck gun. UB-61 would carry a crew of up to 3 officer and 31 men and had a cruising range of . UB-61 had a displacement of while surfaced and when submerged. Her engines enabled her to travel at when surfaced and when submerged.
Summary of raiding history DateNameNationalityTonnageTonnages are in gross register tonsFate25 August 1917Sycamore6,550Sunk26 August 1917Assyria6,370Sunk
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