SM UB-126 [SEP] vessel class
SM UB-126
SM "UB-126" 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 20 April 1918 as SM "UB-126".
"UB-126" was surrendered 24 November 1918 in accordance with the requirements of the Armistice with Germany. 
Construction.
She was built by AG Weser of Bremen and following just under a year of construction, launched at Bremen on 16 April 1918. "UB-126" was
SM UB-18
SM "UB-18" was a German Type UB II submarine or U-boat in the German Imperial Navy () during World War I. The U-boat was ordered on 30 April 1915 and launched on 21 August 1915. She was commissioned into the German Imperial Navy on 11 December 1915 as SM "UB-18". The submarine sank 126 ships in 31 patrols for a total of making her the 13th most successful U-boat in both world wars. "UB-18" was rammed by the trawler "Ben