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German submarine U-142 was a Type IID U-boat of Nazi Germany's Kriegsmarine during World War II. Her keel was laid down on 12 December 1939 by Deutsche Werke in Kiel as yard number 271. She was launched on 27 July 1940 and commissioned on 4 September 1940 with Oberleutnant zur See Asmus Nicolai Clausen in command.
| History | |
|---|---|
 Nazi Germany | |
| Name | U-142 |
| Ordered | 25 September 1939 |
| Builder | Deutsche Werke, Kiel |
| Yard number | 271 |
| Laid down | 12 December 1939 |
| Launched | 27 July 1940 |
| Commissioned | 4 September 1940 |
| Fate | Scuttled on 5 May 1945 at Wilhelmshaven |
| General characteristics | |
| Class and type | Type IID coastal submarine |
| Displacement | |
| Length |
|
| Beam |
|
| Height | 8.40 m (27 ft 7 in) |
| Draught | 3.93 m (12 ft 11 in) |
| Installed power |
|
| Propulsion |
|
| Speed |
|
| Range |
|
| Test depth | 80 m (260 ft) |
| Complement | 3 officers, 22 men |
| Armament |
|
| Service record[1][2] | |
| Part of: |
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| Identification codes: | M 32 187 |
| Commanders: |
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| Operations: |
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| Victories: | None |
U-142 began her service life with the 1st U-boat Flotilla. She was then assigned to the 24th Flotilla and subsequently to the 22nd Flotilla where she conducted three patrols, but did not sink or damage any ships. She spent the rest of the war as a training vessel.
She was scuttled on 5 May 1945.
German Type IID submarines were enlarged versions of the original Type IIs. U-142 had a displacement of 314 tonnes (309 long tons) when at the surface and 364 tonnes (358 long tons) while submerged. Officially, the standard tonnage was 250 long tons (254 t), however.[3] The U-boat had a total length of 43.97 m (144 ft 3 in), a pressure hull length of 29.80 m (97 ft 9 in), a beam of 4.92 m (16 ft 2 in), a height of 8.40 m (27 ft 7 in), and a draught of 3.93 m (12 ft 11 in). The submarine was powered by two MWM RS 127 S four-stroke, six-cylinder diesel engines of 700 metric horsepower (510 kW; 690 shp) for cruising, two Siemens-Schuckert PG VV 322/36 double-acting electric motors producing a total of 410 metric horsepower (300 kW; 400 shp) for use while submerged. She had two shafts and two 0.85 m (3 ft) propellers. The boat was capable of operating at depths of up to 80–150 metres (260–490 ft).[3]
The submarine had a maximum surface speed of 12.7 knots (23.5 km/h; 14.6 mph) and a maximum submerged speed of 7.4 knots (13.7 km/h; 8.5 mph).[3] When submerged, the boat could operate for 35–42 nautical miles (65–78 km; 40–48 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 3,800 nautical miles (7,000 km; 4,400 mi) at 8 knots (15 km/h; 9.2 mph). U-142 was fitted with three 53.3 cm (21 in) torpedo tubes at the bow, five torpedoes or up to twelve Type A torpedo mines, and a 2 cm (0.79 in) anti-aircraft gun. The boat had a complement of 25.[3]
First patrol
The boat's first patrol commenced with her departure from Gotenhafen, (now Gdynia in modern-day Poland) on 21 June 1941. She arrived in Oxhöft, (a suburb of Gdynia), without incident on 12 July.
Second patrol
Her second foray was also abortive, departing Oxhöft 25 July 1941 and arriving in Stormelö (in southwest Finland) on 9 August.
Third patrol
Her third sortie was equally barren, beginning in Stormelo on 28 August 1941 and ending in Gotenhafen on the 31st.
Loss
U-142 was scuttled in the Raederschleuse (lock) in Wilhelmshaven on 5 May 1945. The wreck was broken up on an unknown date.
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