SM UB-99 [SEP] vessel class
SM UB-99
SM "UB-99" 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 September 1918 as SM "UB-99".
"UB-99" was surrendered on 21 November 1918 and served in the French Navy until 1935 under the name "Carissan".
Construction.
She was built by AG Vulcan of Hamburg and following just under a year of construction, launched at Hamburg on 29 July 1918
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