Type UE I submarine
The German Type UE I submarine was an ocean-going single-hull submarine with saddle tanks built by AG Vulkan in Hamburg and Kaiserliche Werft Danzig. The Type UE I was equipped with two six-cylinder Benz engines for for a surface top speed of to. Armed with a single torpedo tube forward and aft, plus one SK L/30 deck gun, its main weapon were the 38 mines in two minelaying tubes. The boats were crewed by four officers and 28 men for a complement of 32.
| Boat | Fate |
| surrendered 1919, scrapped | |
| scuttled 1 November 1918 at Cattaro | |
| scuttled 30 October 1918 off Pula | |
| sunk 27 May 1916 in the North Sea | |
| sunk by mine 13 December 1917 in the North Sea | |
| sunk 27 January 1917 in the Arctic Ocean | |
| lost after 5 July 1916 in the North Sea | |
| sunk 28 October 1918 in the North Sea | |
| surrendered November 1918, became French submarine Victor Reveille, scrapped 1935 | |
| surrendered January 1919, scrapped |