German submarine U-871

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 and type:	Type IXD2 submarine
Displacement:	1,610 t (1,580 long tons) surfaced 1,799 t (1,771 long tons) submerged
Length:	87.58 m (287 ft 4 in) o/a 68.50 m (224 ft 9 in) pressure hull
Beam:	7.50 m (24 ft 7 in) o/a 4.40 m (14 ft 5 in) pressure hull
Height:	10.20 m (33 ft 6 in)
Draught:	5.35 m (17 ft 7 in)
Installed power:	9,000 PS (6,620 kW; 8,880 bhp) (diesels) 1,000 PS (740 kW; 990 shp) (electric)
Propulsion:	2 shafts 2 × diesel engines 2 × electric motors
Speed:	20.8 knots (38.5 km/h; 23.9 mph) surfaced 6.9 knots (12.8 km/h; 7.9 mph) submerged
Range:	12,750 nmi (23,610 km; 14,670 mi) at 10 knots (19 km/h; 12 mph) surfaced 57 nmi (106 km; 66 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth:	230 m (750 ft)
Complement:	66
Armament:	6 × 53.3 cm (21 in) torpedo tubes (four bow, two stern) 24 × torpedoes or 48 TMA or 72 TMB naval mines 1 × 10.5 cm (4.1 in) SK L/45 'Utof' deck gun (150 rounds) various anti-aircraft guns
Service record
Part of:	4th U-boat Flotilla (Training) 15 January 1944 - 31 July 1944 12th U-boat Flotilla (Active service) 1 August 1944 - 26 September 1944^[1]
Commanders:	Kptlt. Erwin Ganzer^[2] 15 January 1944 – 26 September 1944
Operations:	1 patrol
Victories:	None

German submarine U-871 was a long-range Type IXD2 U-boat built for Nazi Germany's Kriegsmarine during World War II.

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) with 2575 rounds as well as two 2 cm (0.79 in) anti-aircraft guns with 8100 rounds. The boat had a complement of fifty-five.^[4]

Service history

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 / 43.300°N 36.467°W / 43.300; -36.467Coordinates: 43°18′N 36°28′W / 43.300°N 36.467°W / 43.300; -36.467.^[3]

References

↑ Busch & Röll 1997, p. 384.
↑ Helgason, Guðmundur. "Erwin Ganzer". German U-boats of WWII - uboat.net. Retrieved 12 April 2016.
1 2 3 Helgason, Guðmundur. "U-871". German U-boats of WWII - uboat.net. Retrieved 12 April 2016.
1 2 3 4 Gröner 1991, pp. 74-75.

Bibliography

Busch, Rainer; Röll, Hans-Joachim (1997). Der U-Boot-Bau auf deutschen Werften. Der U-Boot-Krieg 1939-1945 (in German). II. Hamburg, Berlin, Bonn: Mittler. ISBN 3-8132-0509-6.
Busch, Rainer; Röll, Hans-Joachim (1999). German U-boat commanders of World War II : a biographical dictionary. Translated by Brooks, Geoffrey. London, Annapolis, Md: Greenhill Books, Naval Institute Press. ISBN 1-55750-186-6.
Busch, Rainer; Röll, Hans-Joachim (1999). Deutsche U-Boot-Verluste von September 1939 bis Mai 1945 [German U-boat losses from September 1939 to May 1945]. Der U-Boot-Krieg 1939-1945 (in German). IV. Hamburg, Berlin, Bonn: Mittler. ISBN 3-8132-0514-2.
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.
Sharpe, Peter (1998). U-Boat Fact File. Great Britain: Midland Publishing. ISBN 1-85780-072-9.

External links

Helgason, Guðmundur. "U-871". German U-boats of WWII - uboat.net. Retrieved 6 January 2014.
Helgason, Guðmundur. "Patrols by U-871". German U-boats of WWII - uboat.net.

German Type IXD submarine

Type IXD1	U-180 U-195

Type IXD2	U-177 U-178 U-179 U-181 U-182 U-196 U-197 U-198 U-199 U-200 U-847 U-848 U-849 U-850 U-851 U-852 U-859 U-860 U-861 U-862 U-863 U-864 U-871 U-872 U-873 U-874 U-875 U-876

IXD/42	U-883 U-884

Preceded by: Type IXC Followed by: Type X

List of U-boats of Germany

German Type IX submarines

Type IXA	U-37 U-38 U-39 U-40 U-41 U-42 U-43 U-44

Type IXB	U-64 U-65 U-103 U-104 U-105 U-106 U-107 U-108 U-109 U-110 U-111 U-122 U-123 U-124

Type IXC	U-66 U-67 U-68 U-125 U-126 U-127 U-128 U-129 U-130 U-131 U-153 U-154 U-155 U-156 U-157 U-158 U-159 U-160 U-161 U-162 U-163 U-164 U-165 U-166 U-171 U-172 U-173 U-174 U-175 U-176 U-501 U-502 U-503 U-504 U-505 U-506 U-507 U-508 U-509 U-510 U-511 U-512 U-513 U-514 U-515 U-516 U-517 U-518 U-519 U-520 U-521 U-522 U-523 U-524

Type IXC/40	U-167 U-168 U-169 U-170 U-183 U-184 U-185 U-186 U-187 U-188 U-189 U-190 U-191 U-192 U-193 U-194 U-525 U-526 U-527 U-528 U-529 U-530 U-531 U-532 U-533 U-534 U-535 U-536 U-537 U-538 U-539 U-540 U-541 U-542 U-543 U-544 U-545 U-546 U-547 U-548 U-549 U-550 U-801 U-802 U-803 U-804 U-805 U-806 U-841 U-842 U-843 U-844 U-845 U-846 U-853 U-854 U-855 U-856 U-857 U-858 U-865 U-866 U-867 U-868 U-869 U-870 U-877 U-878 U-879 U-880 U-881 U-889 U-1221 U-1222 U-1223 U-1224 U-1225 U-1226 U-1227 U-1228 U-1229 U-1230 U-1231 U-1232 U-1233 U-1234 U-1235

Type IXD	U-177 U-178 U-179 U-180 U-181 U-182 U-195 U-196 U-197 U-198 U-199 U-200 U-847 U-848 U-849 U-850 U-851 U-852 U-859 U-860 U-861 U-862 U-863 U-864 U-871 U-872 U-873 U-874 U-875 U-876

Preceded by: Type VII Followed by: Type X List of U-boats of Germany

Shipwrecks and maritime incidents in September 1944

Shipwrecks	1 Sep: HMS Hurst Castle, Kehdingen, U-247 2 Sep: Empire Curzon, U-394 5 Sep: U-362 7 Sep: Shin'yō Maru, (incident), Westfalen 8 Sep: Rex 9 Sep: Sava, U-484 10 Sep: U-20, U-23 11 Sep: Giulio Cesare, U-19 12 Sep: USS Noa, Rakuyō Maru, Shikinami 13 Sep: USS Perry, USS Warrington 14 Sep: Irene Oldendorff 17 Sep: Un'yō 18 Sep: Gyōkū Maru, Jun'yō Maru 19 Sep: Isoshima;U-407, U-867 21 Sep: China Maru, Hōfuku Maru, Katsuriki, Satsuki 22 Sep: Drache 23 Sep: Taranto, U-859 24 Sep: Akitsushima, Siberia Maru, T-120, Yaeyama 25 Sep: USS Miantonomah 26 Sep: Aotaka, Saga, U-871 27 Sep: HMS Rockingham, Ural Maru 28 Sep: Dragoner 29 Sep: U-863 30 Sep: U-565, U-596, U-1062 Unknown date: U-703, U-855, U-865, U-921

Other incidents	12 Sep: USS Fullam 14 Sep: USS Natchez, USS Temptress 15 Sep: Tirpitz 19 Sep: Jingei, U-565 24 Sep: U-565, U-596 26 Sep: Don Marquis Unknown date: Schwabenland

1943 1944 1945 August 1944 October 1944

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