German submarine U-871
German World War II submarine
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German submarine U-871 was a long-range Type IXD2 U-boat built for Nazi Germany's Kriegsmarine during World War II.
| History | |
|---|---|
 Nazi Germany | |
| Name | U-871 |
| Ordered | 25 August 1941 |
| Builder | DeSchiMAG AG Weser, Bremen |
| Yard number | 1079 |
| Laid down | 14 November 1942 |
| Launched | 7 September 1943 |
| Commissioned | 15 January 1944 |
| Fate | Sunk on 26 September 1944 |
| General characteristics | |
| Class & type | Type IXD2 submarine |
| Displacement | |
| Length |
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| Beam |
|
| Height | 10.20 m (33 ft 6 in) |
| Draught | 5.35 m (17 ft 7 in) |
| Installed power |
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| Propulsion |
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| Speed |
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| Range |
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| Test depth | 230 m (750 ft) |
| Complement | 66 |
| Armament |
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| Service record | |
| Part of |
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| Identification codes | M 19 451 |
| Commanders | |
| Operations |
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| Victories | None |
She was ordered on 25 August 1941, and was laid down on 14 November 1942 at DeSchiMAG AG Weser, Bremen, as yard number 1079. She was launched on 7 September 1943 and commissioned under the command of Kapitänleutnant Erwin Ganzer on 15 January 1944.[3]
Design
German Type IXD2 submarines were considerably larger than the original Type IXs. U-871 had a displacement of 1,610 tonnes (1,580 long tons) when at the surface and 1,799 tonnes (1,771 long tons) while submerged.[4] The U-boat had a total length of 87.58 m (287 ft 4 in), a pressure hull length of 68.50 m (224 ft 9 in), a beam of 7.50 m (24 ft 7 in), a height of 10.20 m (33 ft 6 in), and a draught of 5.35 m (17 ft 7 in). The submarine was powered by two MAN M 9 V 40/46 supercharged four-stroke, nine-cylinder diesel engines plus two MWM RS34.5S six-cylinder four-stroke diesel engines for cruising, producing a total of 9,000 metric horsepower (6,620 kW; 8,880 shp) for use while surfaced, two Siemens-Schuckert 2 GU 345/34 double-acting electric motors producing a total of 1,000 shaft horsepower (1,010 PS; 750 kW) for use while submerged. She had two shafts and two 1.85 m (6 ft) propellers. The boat was capable of operating at depths of up to 200 metres (660 ft).[4]
The submarine had a maximum surface speed of 20.8 knots (38.5 km/h; 23.9 mph) and a maximum submerged speed of 6.9 knots (12.8 km/h; 7.9 mph).[4] When submerged, the boat could operate for 121 nautical miles (224 km; 139 mi) at 2 knots (3.7 km/h; 2.3 mph); when surfaced, she could travel 12,750 nautical miles (23,610 km; 14,670 mi) at 10 knots (19 km/h; 12 mph). U-871 was fitted with six 53.3 cm (21 in) torpedo tubes (four fitted at the bow and two at the stern), 24 torpedoes, one 10.5 cm (4.13 in) SK C/32 naval gun, 150 rounds, and a 3.7 cm (1.5 in) Flak M42 with 2575 rounds as well as two 2 cm (0.79 in) C/30 anti-aircraft guns with 8100 rounds. The boat had a complement of fifty-five.[4]
Service history
On 26 September 1944, U-871 was sunk by depth charges northwest of the Azores, by a British B-17 Flying Fortress of 220 Squadron/P RAF. All 69 of her crew were lost.[3]
The wreck lies at 43°18′N 36°28′W.[3]