SM U-152 [SEP] vessel class
SM U-152
SM "U-152" was a German Type U 151 submarine of the Imperial German Navy during World War I.
Built at Hamburg, the submarine was commissioned in October 1917. Initially intended as a submersible merchantman for transporting critical war materiel through the British blockade, she was converted to a combat ship while under construction.
Service history.
"U-152" was actively employed in the Atlantic during the last year of the conflict. Among her victims were two American schooners, "Julia Frances" (sunk on
Class members.
Class members SM "U-3".
SM "U-3" was laid down on 12 March 1907 at Germaniawerft in Kiel (work no. 135) and launched on 20 August 1908. Upon completion, she was towed via Gibraltar to Pola, where she arrived on 24 January 1909. She was commissioned into the Austro-Hungarian Navy on 12 September, and served as a training vessel through the beginning of World War I. For most of the first year of the war, she conducted reconnaissance cruises from Cattaro