Unterseeboot 90 (1917)
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| Career (Germany) |  |
|---|---|
| Name: | Unterseeboot 90 |
| Ordered: | 23 June 1915 |
| Builder: | Kaiserliche Werft, Danzig |
| Laid down: | 29 December 1915 |
| Launched: | 12 January 1917 |
| Commissioned: | 2 August 1917 |
| Fate: | Surrendered 20 November 1918; broken up 1919–1920 |
| General characteristics | |
| Type: | German Type Mittel U submarine |
| Displacement: | 808 tons (surfaced) 946 tons (submerged) 1160 tons (total) |
| Length: | 70.60 m (231 ft 8 in) (overall) 55.55 m (182 ft 3 in) (pressure hull) |
| Beam: | 6.30 m (20 ft 8 in) (overall) 4.15 m (13 ft 7 in) (pressure hull) |
| Draft: | 4.02 m (13 ft 2 in) |
| Propulsion: | 2,400 hp (1,800 kW) (surfaced) 1,200 hp (890 kW) (submerged) |
| Speed: | 16.8 knots (31.1 km/h) (surfaced) 9.1 knots (16.9 km/h) (submerged) |
| Range: | 11,220 nmi (20,780 km) (surfaced) 56 nmi (104 km) (submerged) |
| Complement: | 39 men |
| Armament: | 16 torpedoes (4/2 in bow/stern tubes) 105 mm (4.1 in) deck gun with 220 rounds 88 mm (3.5 in) deck gun |
Unterseeboot 90 also known as U-90 was a Type Mittel U U-boat of the German Imperial Navy during World War I.
On 31 May 1918, U-90 torpedoed and sank USS President Lincoln. President Lincoln was a former Hamburg America Line steamer of the same name seized by the United States and employed as a troop transport. From the U.S. Navy crew that abandoned the sinking President Lincoln, U-90 captured Lieutenant Edouard Izac taking him prisoner, and eventually taking him to Germany.
