German submarineU-313

History
Nazi Germany
Name	U-313
Ordered	25 August 1941
Builder	Flender Werke,Lübeck
Yard number	313
Laid down	11 May 1942
Launched	27 March 1943
Commissioned	20 May 1943
Fate	Surrendered on 9 May 1945. Sunk on 27 December 1945 as part of OperationDeadlight
General characteristics
Class and type	Type VIICsubmarine
Displacement	769tonnes(757long tons) surfaced; 871 t (857 long tons) submerged;
Length	67.10 m (220 ft 2 in)o/a; 50.50 m (165 ft 8 in)pressure hull;
Beam	6.20 m (20 ft 4 in) o/a; 4.70 m (15 ft 5 in) pressure hull;
Height	9.60 m (31 ft 6 in)
Draught	4.74 m (15 ft 7 in)
Installed power	2,800–3,200 PS (2,100–2,400 kW; 2,800–3,200 bhp) (diesels); 750 PS (550 kW; 740 shp) (electric);
Propulsion	2 shafts; 2 ×diesel engines; 2 ×electric motors.;
Speed	17.7 knots (32.8 km/h; 20.4 mph) surfaced; 7.6 knots (14.1 km/h; 8.7 mph) submerged;
Range	8,500nmi(15,700km;9,800mi) at 10 knots (19 km/h; 12 mph) surfaced; 80 nmi (150 km; 92 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged;
Test depth	230 m (750 ft); Crush depth:250–295 m (820–968 ft);
Complement	4 officers, 40–56 enlisted
Armament	5 × 53.3 cm (21 in)torpedo tubes(four bow, one stern); 14 ×torpedoesor26 TMAmines; 1 ×8.8 cm (3.46 in) deck gun(220 rounds); 2 × twin2 cm (0.79 in) C/30anti-aircraft guns;
Service record
Part of:	8th U-boat Flotilla; 20 May – 31 December 1943; 11th U-boat Flotilla; 1 January – 14 September 1944; 13th U-boat Flotilla; 15 September 1944 – 8 May 1945;
Identification codes:	M 44 826
Commanders:	Kptlt.Friedrich Schweiger; 20 May 1943 – 9 May 1945;
Operations:	12 patrols:; 1st patrol:; a. 26 January – 2 February 1944; b. 7 – 29 February 1944; 2nd patrol:; 15 March – 13 April 1944; 3rd patrol:; 25 April – 12 May 1944; 4th patrol:; 30 May – 3 July 1944; 5th patrol:; 6 – 14 September 1944; 6th patrol:; 20 – 23 September 1944; 7th patrol:; 26 September – 3 November 1944; 8th patrol:; 23 November – 6 December 1944; 9th patrol:; 11 – 16 December 1944; 10th patrol:; 23 December 1944 – 17 February 1945; 11th patrol:; 16 – 29 March 1945; 12th patrol:; a. 17 April – 8 May 1945; b. 12 May 1945; c. 15 – 19 May 1945;
Victories:	None

German submarineU-313was aType VIIC U-boatofNazi Germany'sKriegsmarineduringWorld War II.The submarine waslaid downon 11 May 1942 at theFlender Werkeyard atLübeckas yard number 313,launchedon 27 March 1943 andcommissionedon 20 May under the command ofKapitänleutnantFriedrich Schweiger.

During her career, the U-boat sailed on twelve combat patrols, but sank no ships before she surrendered atNarvikon 9 May 1945. She was sunk on 27 December 1945 as part of OperationDeadlight.^[1]

She was a member of elevenwolfpacks.

Design

German Type VIIC submarineswere preceded by the shorterType VIIB submarines.U-313had a displacement of 769 tonnes (757 long tons) when at the surface and 871 tonnes (857 long tons) while submerged.^[3]She had a total length of 67.10 m (220 ft 2 in), apressure hulllength of 50.50 m (165 ft 8 in), abeamof 6.20 m (20 ft 4 in), a height of 9.60 m (31 ft 6 in), and adraughtof 4.74 m (15 ft 7 in). The submarine was powered by twoGermaniawerftF46 four-stroke, six-cylindersupercharged diesel enginesproducing a total of 2,800 to 3,200 metric horsepower (2,060 to 2,350 kW; 2,760 to 3,160 shp) for use while surfaced, twoGarbe, Lahmeyer & Co.RP 137/cdouble-acting electric motorsproducing a total of 750 metric horsepower (550 kW; 740 shp) for use while submerged. She had two shafts and two 1.23 m (4 ft)propellers.The boat was capable of operating at depths of up to 230 metres (750 ft).^[3]

The submarine had a maximum surface speed of 17.7 knots (32.8 km/h; 20.4 mph) and a maximum submerged speed of 7.6 knots (14.1 km/h; 8.7 mph).^[3]When submerged, the boat could operate for 80 nautical miles (150 km; 92 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 8,500 nautical miles (15,700 km; 9,800 mi) at 10 knots (19 km/h; 12 mph).U-313was fitted with five 53.3 cm (21 in)torpedo tubes(four fitted at the bow and one at the stern), fourteentorpedoes,one8.8 cm (3.46 in) SK C/35 naval gun,220 rounds, and two twin2 cm (0.79 in) C/30 anti-aircraft guns.The boat had acomplementof between forty-four and sixty.^[3]

Service history

The boat's service life began with training with the8th U-boat Flotillain May 1943. She was transferred to the11th flotillafor operations on 1 January 1944. She was then reassigned to the13th flotillaon 15 September.

She made a pair of short voyages fromKielin Germany toStavangerandBergenin Norway in January 1944.

First, second and third patrols

The submarine's first patrol began with her departure from Bergen on 26 January 1944. She arrived atHammerfeston 2 February but departed again on the seventh. She finished the patrol at Hammerfest on the 29th.

U-313spent her second and third patrols in theNorwegian Sea.

Fourth, fifth, sixth and seventh patrols

Her fourth sortie took her as far as a point southwest ofBear Island.On 26 June 1944, she was north ofJan MayenIsland.

The boat's fifth patrol kept her closer to the Norwegian coast.

Her sixth and seventh patrols saw the submarine docking inSkillefjordon 23 September 1944, having left Narvik on the 20th. She then left the smaller port on the 26th and returned to Narvik.

Eighth, ninth and tenth patrols

For her eighth sortie, she rounded theNorth Cape,passingMurmansk.

Her ninth patrol was relatively short, beginning inBodenbuchton 11 December 1944, (northwest of Narvik) and terminating inTrondheimon the 16th.

If her previous patrol was brief, her tenth effort, at 57 days, was her longest and involved sailing near to theOrkney Islands.Having departed Trondheim, the boat returned to Narvik.

Eleventh and twelfth patrols and fate

Having usedHarstad(northwest of Narvik) briefly and following the German capitulation,U-313was moved, first from Narvik toSkjomenfjord,then toLoch Eribollin Scotland on 19 May 1945 in preparation for OperationDeadlight.She was finally transferred toLoch Ryanand sunk on 27 November. According to one source, she capsized while under tow byHMSBlencathra.^[4]

References

^^a ^bHelgason, Guðmundur."The Type VIIC boat U-313".German U-boats of WWII – uboat.net.Retrieved17 August2012.
^Helgason, Guðmundur."War Patrols by German U-boatU-313".German U-boats of WWII – uboat.net.Retrieved17 August2012.
^^a ^b ^c ^dGröner 1991,pp. 43–46.
^Hofmann, Markus."U 313".Deutsche U-Boote 1935–1945 – u-boot-archiv.de(in German).Retrieved26 December2014.

Bibliography

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, Erich; Jung, Dieter; Maass, Martin (1991).U-boats and Mine Warfare Vessels.German Warships 1815–1945. Vol. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press.ISBN 0-85177-593-4.

External links

Helgason, Guðmundur."The Type VIIC boat U-313".German U-boats of WWII – uboat.net.Retrieved26 December2014.
Hofmann, Markus."U 313".Deutsche U-Boote 1935–1945 – u-boot-archiv.de(in German).Retrieved26 December2014.

55°40′N8°24′W/ 55.667°N 8.400°W/55.667; -8.400

[uboatnet-1] Helgason, Guðmundur."The Type VIIC boat U-313".German U-boats of WWII – uboat.net.Retrieved17 August2012.

[patrols-2] Helgason, Guðmundur."War Patrols by German U-boatU-313".German U-boats of WWII – uboat.net.Retrieved17 August2012.

[FOOTNOTEGröner199143–46-3] Gröner 1991,pp. 43–46.

[4] Hofmann, Markus."U 313".Deutsche U-Boote 1935–1945 – u-boot-archiv.de(in German).Retrieved26 December2014.

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v t e Type VII submarines
Type VIIA	U-27 U-28 U-29 U-30 U-31 U-32 U-33 U-34 U-35 U-36
Type VIIB	U-45 U-46 U-47 U-48 U-49 U-50 U-51 U-52 U-53 U-54 U-55 U-73 U-74 U-75 U-76 U-83 U-84 U-85 U-86 U-87 U-99 U-100 U-101 U-102
Type VIIC	U-69 U-70 U-71 U-72 U-77 U-78 U-79 U-80 U-81 U-82 U-88 U-89 U-90 U-91 U-92 U-93 U-94 U-95 U-96 U-97 U-98 U-132 U-133 U-134 U-135 U-136 U-201 U-202 U-203 U-204 U-205 U-206 U-207 U-208 U-209 U-210 U-211 U-212 U-221 U-222 U-223 U-224 U-225 U-226 U-227 U-228 U-229 U-230 U-231 U-232 U-235 U-236 U-237 U-238 U-239 U-240 U-241 U-242 U-243 U-244 U-245 U-246 U-247 U-248 U-249 U-250 U-251 U-252 U-253 U-254 U-255 U-256 U-257 U-258 U-259 U-260 U-261 U-262 U-263 U-264 U-265 U-266 U-267 U-268 U-269 U-270 U-271 U-272 U-273 U-274 U-275 U-276 U-277 U-278 U-279 U-280 U-281 U-282 U-283 U-284 U-285 U-286 U-287 U-288 U-289 U-290 U-291 U-301 U-302 U-303 U-304 U-305 U-306 U-307 U-308 U-309 U-310 U-311 U-312 U-313 U-314 U-315 U-316 U-331 U-332 U-333 U-334 U-335 U-336 U-337 U-338 U-339 U-340 U-341 U-342 U-343 U-344 U-345 U-346 U-347 U-348 U-349 U-350 U-351 U-352 U-353 U-354 U-355 U-356 U-357 U-358 U-359 U-360 U-361 U-362 U-363 U-364 U-365 U-366 U-367 U-368 U-369 U-370 U-371 U-372 U-373 U-374 U-375 U-376 U-377 U-378 U-379 U-380 U-381 U-382 U-383 U-384 U-385 U-386 U-387 U-388 U-389 U-390 U-391 U-392 U-393 U-394 U-396 U-397 U-398 U-399 U-400 U-401 U-402 U-403 U-404 U-405 U-406 U-407 U-408 U-409 U-410 U-411 U-412 U-413 U-414 U-415 U-416 U-417 U-418 U-419 U-420 U-421 U-422 U-423 U-424 U-425 U-426 U-427 U-428 U-429 U-430 U-431 U-432 U-433 U-434 U-435 U-436 U-437 U-438 U-439 U-440 U-441 U-442 U-443 U-444 U-445 U-446 U-447 U-448 U-449 U-450 U-451 U-452 U-453 U-454 U-455 U-456 U-457 U-458 U-465 U-466 U-467 U-468 U-469 U-470 U-471 U-472 U-473 U-475 U-476 U-477 U-478 U-479 U-480 U-481 U-482 U-483 U-484 U-485 U-486 U-551 U-552 U-553 U-554 U-555 U-556 U-557 U-558 U-559 U-560 U-561 U-562 U-563 U-564 U-565 U-566 U-567 U-568 U-569 U-570 U-571 U-572 U-573 U-574 U-575 U-576 U-577 U-578 U-579 U-580 U-581 U-582 U-583 U-584 U-585 U-586 U-587 U-588 U-589 U-590 U-591 U-592 U-593 U-594 U-595 U-596 U-597 U-598 U-599 U-600 U-601 U-602 U-603 U-604 U-605 U-606 U-607 U-608 U-609 U-610 U-611 U-612 U-613 U-614 U-615 U-616 U-617 U-618 U-619 U-620 U-621 U-622 U-623 U-624 U-625 U-626 U-627 U-628 U-629 U-630 U-631 U-632 U-633 U-634 U-635 U-636 U-637 U-638 U-639 U-640 U-641 U-642 U-643 U-644 U-645 U-646 U-647 U-648 U-649 U-650 U-651 U-652 U-653 U-654 U-655 U-656 U-657 U-658 U-659 U-660 U-661 U-662 U-663 U-664 U-665 U-666 U-667 U-668 U-669 U-670 U-671 U-672 U-673 U-674 U-675 U-676 U-677 U-678 U-679 U-680 U-681 U-682 U-683 U-701 U-702 U-703 U-704 U-705 U-706 U-707 U-708 U-709 U-710 U-711 U-712 U-713 U-714 U-715 U-716 U-717 U-718 U-719 U-720 U-721 U-722 U-731 U-732 U-733 U-734 U-735 U-736 U-737 U-738 U-739 U-740 U-741 U-742 U-743 U-744 U-745 U-746 U-747 U-748 U-749 U-750 U-751 U-752 U-753 U-754 U-755 U-756 U-757 U-758 U-759 U-760 U-761 U-762 U-763 U-764 U-765 U-766 U-767 U-768 U-771 U-772 U-773 U-774 U-775 U-776 U-777 U-778 U-779 U-821 U-822 U-825 U-826 U-901 U-903 U-904 U-905 U-907 U-921 U-922 U-923 U-924 U-925 U-926 U-927 U-928 U-951 U-952 U-953 U-954 U-955 U-956 U-957 U-958 U-959 U-960 U-961 U-962 U-963 U-964 U-965 U-966 U-967 U-968 U-969 U-970 U-971 U-972 U-973 U-974 U-975 U-976 U-977 U-978 U-979 U-980 U-981 U-982 U-983 U-984 U-985 U-986 U-987 U-988 U-989 U-990 U-991 U-992 U-993 U-994 U-1051 U-1052 U-1053 U-1054 U-1055 U-1056 U-1057 U-1058 U-1101 U-1102 U-1131 U-1132 U-1161 U-1162 U-1191 U-1192 U-1193 U-1194 U-1195 U-1196 U-1197 U-1198 U-1199 U-1200 U-1201 U-1202 U-1203 U-1204 U-1205 U-1206 U-1207 U-1208 U-1209 U-1210
Type VIIC/41	U-292 U-293 U-294 U-295 U-296 U-297 U-298 U-299 U-300 U-317 U-318 U-319 U-320 U-321 U-322 U-323 U-324 U-325 U-326 U-327 U-328 U-691 U-827 U-828 U-929 U-930 U-995 U-997 U-998 U-999 U-1000 U-1001 U-1002 U-1003 U-1004 U-1005 U-1006 U-1007 U-1008 U-1009 U-1010 U-1011 U-1013 U-1014 U-1015 U-1016 U-1017 U-1018 U-1019 U-1020 U-1021 U-1022 U-1023 U-1024 U-1025 U-1063 U-1064 U-1065 U-1103 U-1104 U-1105 U-1106 U-1107 U-1108 U-1109 U-1110 U-1163 U-1164 U-1165 U-1166 U-1167 U-1168 U-1169 U-1170 U-1171 U-1172 U-1271 U-1272 U-1273 U-1274 U-1275 U-1276 U-1277 U-1278 U-1279 U-1301 U-1302 U-1303 U-1304 U-1305 U-1306 U-1307 U-1308
Type VIID	U-213 U-214 U-215 U-216 U-217 U-218
Type VIIF	U-1059 U-1060 U-1061 U-1062
Preceded by:Type II Followed by:Type IX List of U-boats of Germany

v t e Shipwrecks and maritime incidents in December 1945
Shipwrecks	1 Dec:USSBellona,U-826,U-1004,U-1061,U-1104 3 Dec:U-994 4 Dec:U-218,U-299,U-539,U-777 5 Dec:U-1005 7 Dec:U-245,U-907,U-1019 8 Dec:U-485,U-773,U-775,U-1203,U-1271,U-1272 9 Dec:U-532,U-1052,U-1307 11 Dec:U-716,U-978,U-991,U-1163 13 Dec:Empire Tigaven,HMSN 86,U-255,U-293,U-295,U-760,U-997,U-1002 16 Dec:U-483,U-739,U-928,U-992,U-1009,U-1301 17 Dec:U-368,U-779,U-956,U-1198,U-1230 20 Dec:U-291 21 Dec:U-149,U-150,U-155,U-318,U-427,U-637,U-720,U-806,U-1102,U-1110 22 Dec:U-143,U-145,U-1194,U-2354 23 Dec:Duncan L. Clinch 27 Dec:Empire Tigawa,U-313 28 Dec:U-680 29 Dec:USSMinivet,U-390,U-930,U-1022,U-1233 30 Dec:Lambridge,U-1103,U-1165 31 Dec:U-294,U-363,U-668,U-802,U-861,U-874,U-875,U-883,U-2341 Unknown date:USSIndustry
Other incidents	11 Dec:I-201
194419451946 November 1945January 1946