SM UB-99

SM UB-99 was a German Type UB III submarine or U-boat in the German Imperial Navy (Kaiserliche Marine) 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. UB-99 was commissioned later the same year. Like all Type UB III submarines, UB-99 carried 10 torpedoes and was armed with a 10.5 cm deck gun. UB-99 would carry a crew of up to 3 officer and 31 men and had a cruising range of 7120 nmi. UB-99 had a displacement of 510 t while surfaced and 640 t when submerged. Her engines enabled her to travel at 13 kn when surfaced and 7.4 kn when submerged.