SM U-158[Note 1] was a Type U-158 submarine of the Imperial German Navy, built during the First World War.

History
German Empire
NameU-158
OrderedFebruary 1917
BuilderKaiserliche Werft Danzig
Launched16 April 1918
FateBroken up in 1919
General characteristics [1]
Class and typeType U 158 submarine
Displacement
  • 811 t (798 long tons) surfaced
  • 1,034 t (1,018 long tons) submerged
Length71.15 m (233 ft 5 in) (o/a)
Beam6.20 m (20 ft 4 in) (o/a)
Height8.25 m (27 ft 1 in)
Draught3.94 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
Propulsion2 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 depth50 m (164 ft 1 in)
Complement4 officers, 32 enlisted
Armament

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

edit

Notes

edit
  1. ^ "SM" stands for "Seiner Majestät" (English: His Majesty's) and combined with the U for Unterseeboot would be translated as His Majesty's Submarine.

Citations

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

Bibliography

edit
  • 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. German Warships 1815–1945. Vol. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.