SM U-158

History
German Empire
Name	U-158
Ordered	February 1917
Builder	Kaiserliche Werft Danzig
Launched	16 April 1918
Fate	Broken up in 1919
General characteristics
Class and type	German Type U 158 submarine
Displacement	811 t (798 long tons) surfaced; 1,034 t (1,018 long tons) submerged;
Length	71.15 m (233 ft 5 in) (o/a)
Beam	6.20 m (20 ft 4 in) (o/a)
Height	8.25 m (27 ft 1 in)
Draught	3.94 m (12 ft 11 in)
Installed power	2 × 2,400 PS (1,765 kW; 2,367 shp) surfaced; 2 × 1,200 PS (883 kW; 1,184 shp) submerged;
Propulsion	2 shafts, 2 × 1.70 m (5 ft 7 in) propellers
Speed	16.0 knots (29.6 km/h; 18.4 mph) surfaced; 9.0 knots (16.7 km/h; 10.4 mph) submerged;
Range	12,370 nmi (22,910 km; 14,240 mi) at 8 knots (15 km/h; 9.2 mph) surfaced; 55 nmi (102 km; 63 mi) at 5 knots (9.3 km/h; 5.8 mph) submerged;
Test depth	50 m (164 ft 1 in)
Complement	4 officers, 32 enlisted
Armament	6 × 50 cm (19.7 in) torpedo tubes (four bow, two stern); 12-16 torpedoes; 1 × 10.5 cm (4.1 in) deck gun;

SM U-158 was a Type U-158 submarine of the Imperial German Navy, built during the First World War.

SM U-158 was one of six 810-ton boats ordered in February 1917.^[2] She was one of two ships built to an improved design developed from the Type U-115 design, along with her sister, SM U-159.^[3] They were known as 'Project 25', and had a greatly increased radius of action. Both ships were built at Kaiserliche Werft Danzig, with U-158 being launched on 16 April 1918.^[3] The war ended before she could see active service, and she was broken up in 1919.^[3]

References

^ Gröner 1991, pp. 12–14.
^ Gibson & Prendergast. The German Submarine War. p. 143.
^ ^a ^b ^c Gardiner & Budzbon. All the World's Fighting Ships. p. 180.

Bibliography

Robert Gardiner & Przemysław Budzbon, ed. (1985). Conway's All the World's Fighting Ships, 1906-1921. Conway. ISBN 0-85177-245-5.
Gibson, R. H.; Prendergast, Maurice (2002). The German Submarine War 1914-1918. Periscope Publishing Ltd. ISBN 1-904381-08-1.
Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. Vol. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4. {{cite book}}: |work= ignored (help); Cite has empty unknown parameter: |last-author-amp= (help)

[FOOTNOTEGröner199112–14-1] Gröner 1991, pp. 12–14.

[2] Gibson & Prendergast. The German Submarine War. p. 143.

[Conways-3] Gardiner & Budzbon. All the World's Fighting Ships. p. 180.

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