German submarine U-863

History
Nazi Germany
Name	U-863
Ordered	5 June 1941
Builder	DeSchiMAG AG Weser, Bremen
Yard number	1069
Laid down	15 September 1942
Launched	29 June 1943
Commissioned	3 November 1943
Fate	Sunk on 29 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 C/32 (150 rounds); 1 × 3.7 cm (1.5 in) Flak M42 AA gun ; 2 × anti-aircraft guns;
Service record
Part of:	4th U-boat Flotilla; 3 November 1943 – 30 June 1944; 12th U-boat Flotilla; 1 July – 29 September 1944;
Identification codes:	M 53 881
Commanders:	Kptlt. Dietrich von der Esch; 3 November 1943 – 29 September 1944;
Operations:	1 patrol:; 26 July – 29 September 1944;
Victories:	None

German submarine U-863 was a long-range

Type IXD2 U-boat built for Nazi Germany's Kriegsmarine during World War II

.

She was ordered on 5 June 1941, and was

DeSchiMAG AG Weser, Bremen, as yard number 1069. She was launched on 29 June 1943 and commissioned under the command of Kapitänleutnant Dietrich von der Esch on 3 November 1943.^[3]

Design

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).

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 20 July 1944, U-863 was attacked with

333 Squadron. U-863 was forced back to base to repair the minor damage suffered in the attack.^[3]

On 29 September; U-863 was sunk by depth charges east southeast of

US Navy PB4Y-1 Liberator bomber from VB-107. All 69 of her crew were lost.^[3]

The wreck lies at 10°45′S 25°30′W / 10.750°S 25.500°W / -10.750; -25.500.^[3]

References

^ Busch & Röll 1997, p. 384.
^ Helgason, Guðmundur. "Dietrich von der Esch". German U-boats of WWII - uboat.net. Retrieved 12 April 2016.
^ ^a ^b ^c ^d Helgason, Guðmundur. "U-863". German U-boats of WWII - uboat.net. Retrieved 12 April 2016.
^ ^a ^b ^c ^d Gröner 1991, pp. 74–75.

Bibliography

Busch, Rainer; Röll, Hans-Joachim (1997). Der U-Boot-Krieg, 1939-1945: Die deutschen U-Boot-Kommandanten (in German). Vol. 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). Der U-Boot-Krieg, 1939-1945: Deutsche U-Boot-Verluste von September 1939 bis Mai 1945 [German U-boat losses from September 1939 to May 1945] (in German). Vol. IV. Hamburg, Berlin, Bonn: Mittler.
ISBN 3-8132-0514-2
.

Gröner, Eric; Jung, Dieter; Maass, Martin (1991). German Warships 1815-1945: U-boats and Mine Warfare Vessels. Vol. 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-863". German U-boats of WWII - uboat.net. Retrieved 6 January 2014.

External links

Helgason, Guðmundur. "Patrols by U-863". German U-boats of WWII - uboat.net.

[FOOTNOTEBuschRöll1997384-1] Busch & Röll 1997, p. 384.

[2] Helgason, Guðmundur. "Dietrich von der Esch". German U-boats of WWII - uboat.net. Retrieved 12 April 2016.

[uboat-3] Helgason, Guðmundur. "U-863". German U-boats of WWII - uboat.net. Retrieved 12 April 2016.

[FOOTNOTEGröner199174–75-4] Gröner 1991, pp. 74–75.

[1]

[2]

[3]

[4]

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

v t e 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 U-883 U-884
Preceded by: Type VII Followed by: Type X List of U-boats of Germany

v t e 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: incident), Westfalen 8 Sep: Rex 9 Sep: Sava, U-484 10 Sep: U-20, U-23 11 Sep: Giulio Cesare, U-19 12 Sep: Korei Maru, Nankai Maru, USS Noa, Rakuyō Maru, Shikinami 13 Sep: USS Perry, USS Warrington 14 Sep: Irene Oldendorff 16 Sep: I-364 17 Sep: Un'yō 18 Sep: Dr. Heinrich Wiegand, Gyōkū Maru, Jun'yō Maru 19 Sep: Isoshima;U-407, U-867 21 Sep: China Maru, Hōfuku Maru, Katsuriki, Noshiro Maru, Satsuki 22 Sep: Drache 23 Sep: Taranto, U-859 24 Sep: Akitsushima, Siberia Maru, T-120, Yaeyama 25 Sep: USS Miantonomah 26 Sep: Aotaka, Ro-47, 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	8–9 Sep: Yu 3001 12 Sep: USS Fullam 13 Sep: USS Segundo 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