| Career (German Empire) | |
|---|---|
| Name: | U-91 |
| Ordered: | 23 June 1915 |
| Builder: | Kaiserliche Werft Danzig |
| Yard number: | Werk 35 |
| Laid down: | 1 August 1916 |
| Launched: | 14 April 1917 |
| Commissioned: | 17 September 1917 |
| Fate: | Surrendered 26 November 1918 |
| General characteristics | |
| Class and type: | German Type U 87 submarine |
| Displacement: | 808 tons (surfaced) 946 tons (submerged) 1160 tons (total) |
| Length: | 70.60 m (overall) 55.55 m (pressure hull) |
| Beam: | 6.30 m (overall) 4.15 m (pressure hull) |
| Draught: | 4.02 m |
| Propulsion: | 2400 hp (surfaced) 1200 hp (submerged) |
| Speed: | 16.8 knots (surfaced) 9.1 knots (submerged) |
| Range: | 11,220 miles (surfaced) 56 miles (submerged) |
| Complement: | 39 men |
| Armament: | 16 torpedoes (4/2 in bow/stern tubes) 105mm deck gun with 220 rounds 88mm deck gun |
SM U-91 was one of the 329 submarines serving in the Imperial German Navy (Kaiserliche Marine) in World War I. U-91 was engaged in the naval warfare and took part in the First Battle of the Atlantic.[1]
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