SM U-142

For other ships with the same name, see German submarine U-142.

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
Class & 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 × 6,000 PS (4,413 kW; 5,918 shp) 2 × 450 PS (331 kW; 444 shp) surfaced 2 × 2,600 PS (1,912 kW; 2,564 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) deck guns 2 × 8.8 cm (3.5 in) deck guns

SM U-142 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.