SM UB-118 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 22 January 1918 as SM UB-118.
UB-118 was surrendered to the Allies at Harwich on 21 November 1918 in accordance with the requirements of the Armistice with Germany. She was allocated to British explosive trials at Falmouth (see,,,, and), but began to take water while in tow from Devonport to Falmouth, and was therefore sunk by her escort on 21 November 1920.[1]
See main article: Type UB III submarine. She was built by AG Weser of Bremen and following just under a year of construction, launched at Bremen on 13 December 1917. UB-118 was commissioned early the next year under the command of Kptlt. Hermann Arthur Krauß. Like all Type UB III submarines, UB-118 carried 10 torpedoes and was armed with a 8.82NaN2 deck gun. UB-118 would carry a crew of up to 3 officers and 31 men and had a cruising range of 7280nmi. UB-118 had a displacement of 512lk=inNaNlk=in while surfaced and 643t when submerged. Her engines enabled her to travel at 13.9kn when surfaced and when submerged.
| Date | Name | Nationality | Tonnage[2] | Fate[3] | |
|---|---|---|---|---|---|
| 16 May 1918 | Yturri Bide |  Spain | 582 | Sunk | |
| 7 July 1918 | Carl |  Denmark | 2,486 | Sunk | |
| 27 August 1918 | Ant Cassar |  United Kingdom | 3,544 | Sunk | |
| 1 September 1918 | City of Glasgow | United Kingdom | 6,457 | Sunk | |
| 1 September 1918 | Mesaba | United Kingdom | 6,833 | Sunk |