SM UB-103 [SEP] vessel class
SM UB-103
SM "UB-103" 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 18 December 1917 as SM "UB-103".
"UB-103" was sunk in the English Channel by British warships and "SSZ 1", a SSZ class blimp.
Construction.
She was built by Blohm & Voss of Hamburg and following just under a year of construction, launched at Hamburg on 7 July 1917
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