SM UB-122 [SEP] vessel class
SM UB-122
SM "UB-122" 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 4 March 1918 as SM "UB-122".
"UB-122" was surrendered to the British on 24 November 1918 in accordance with the requirements of the Armistice with Germany. She may have been broken up in 1921, have been marooned on a sandbank at Hoo on the River Medway, or have foundered in the North Sea
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