SM UB-61 [SEP] vessel class
SM UB-61
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
with a deck-mounted machine gun. "UB-13" was broken into sections and shipped by rail to Antwerp for reassembly. She was launched in March 1915 and commissioned as SM "UB-13" in April.
"UB-13" spent her entire career in the Flanders Flotilla and sank 11 merchant ships, about half of them British fishing vessels. In March 1916, "UB-13" was responsible for sinking the Dutch ocean liner , raising the ire of the Dutch public. "Tubantia" was the largest neutral vessel sunk during