SM UB-113 was a German Type UB III submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. She was commissioned into the German Imperial Navy on 25 April 1918 as SM UB-113.
UB-113 was lost in the autumn of 1918 for unknown reasons. According to recent sources, SM UB-113 probably crossed paths with the French gunboat l'Engageante on 29 August in the Gulf of Gascony and was sunk. Occasional confusion with the, which also met a mysterious fate, remains.
See main article: Type UB III submarine. She was built by Blohm & Voss of Hamburg and following just under a year of construction, launched in Hamburg on 23 September 1917. UB-113 was commissioned in the spring of the next year under the command of Oblt.z.S. Ulrich Pilzecker. Like all Type UB III submarines, UB-113 carried 10 torpedoes and was armed with an 8.82NaN2 deck gun. UB-113 would carry a crew of up to 3 officers and 31 men and had a cruising range of 7420nmi. UB-113 had a displacement of 519lk=inNaNlk=in while surfaced and 649t when submerged. Her engines enabled her to travel at 13.3kn when surfaced and when submerged.
| Date | Name | Nationality | Tonnage[1] | Fate[2] | |
|---|---|---|---|---|---|
| 21 July 1918 | Kongen |  Norway | 714 | Sunk | |
| 17 August 1918 | Eros |  United Kingdom | 1,122 | Sunk | |
| 23 September 1918 | Aldershot | United Kingdom | 2,177 | Sunk |