SM U-142

	Sister ship U-145 after surrender
History
German Empire
Name:	U-142
Ordered:	29 November 1916
Builder:	Germaniawerft, Kiel
Yard number:	303
Launched:	4 March 1918
Commissioned:	10 November 1918
Fate:	10 November 1918 – Taken right back to the dockyard after being commissioned and demilitarized and finally broken up at Oslebshausen in 1919. Engine plants were surrendered to the allies.
General characteristics [1]
Class and type:	German Type U 139 submarine
Displacement:	2,158 t (2,124 long tons) surfaced; 2,785 t (2,741 long tons) submerged;
Length:	97.50 m (319 ft 11 in) (o/a); 77 m (252 ft 7 in) (pressure hull);
Beam:	9.06 m (29 ft 9 in) (o/a); 5.70 m (18 ft 8 in) (pressure hull);
Height:	5.38 m (17 ft 8 in)
Draught:	11.20 m (36 ft 9 in)
Installed power:	2 × 3,000 PS (2,206 kW; 2,959 shp) ; 1 × 450 PS (331 kW; 444 shp) surfaced; 2 × 1,300 PS (956 kW; 1,282 shp) submerged;
Propulsion:	2 shafts, 2 × 2.10 m (6 ft 11 in) propellers
Speed:	17.5 knots (32.4 km/h; 20.1 mph) surfaced; 8.5 knots (15.7 km/h; 9.8 mph) submerged;
Range:	20,000 nmi (37,000 km; 23,000 mi) at 6 knots (11 km/h; 6.9 mph) surfaced; 70 nmi (130 km; 81 mi) at 4.5 knots (8.3 km/h; 5.2 mph) submerged;
Test depth:	75 m (246 ft 1 in)
Complement:	6 (1) officers, 56 (20) enlisted – (prize crew)
Armament:	6 × 50 cm (19.7 in) torpedo tubes (four bow, two stern); 19-24 torpedoes; 2 × 15 cm (5.9 in) SK L/45 deck guns; 2 × 8.8 cm (3.5 in) SK L/30 deck guns;

SM U-142[Note 1] was one of the 329 submarines serving in the Imperial German Navy in World War I. U-142 was not engaged in the naval warfare. [2]

References

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

Gröner 1991, pp. 19-21.
Helgason, Guðmundur. "WWI U-boats: U 142". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 22 January 2010.

Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. German Warships 1815–1945. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.

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