German submarine U-679

History
Nazi Germany
Name	U-679
Ordered	5 June 1941
Builder	Howaldtswerke, Hamburg
Yard number	828
Laid down	3 September 1942
Launched	18 September 1943
Commissioned	29 November 1943
Fate	Sunk on or 9 January 1945 in the Baltic Sea at 59°26′N24°07′E / 59.433°N 24.117°E by depth charges from Soviet A/S vessel MO-124
General characteristics
Class and type	Type VIIC submarine
Displacement	769 tonnes (757 long 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;
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	8,500 nmi (15,700 km; 9,800 mi) 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 (4 bow, 1 stern); 14 × torpedoes ; 1 × 8.8 cm (3.46 in) deck gun (220 rounds); 1 × 3.7 cm (1.5 in) Flak M42 AA gun ; 2 × twin 2 cm (0.79 in) C/30 anti-aircraft guns ;
Service record
Part of:	31st U-boat Flotilla ; 29 November 1943 – 31 July 1944; 8th U-boat Flotilla ; 1 August 1944 – 9 January 1945;
Identification codes:	M 53 677
Commanders:	Lt.z.S. / Oblt.z.S. Friedrich Breckwoldt; 29 November 1943 – 20 October 1944; Oblt.z.S. Eduard Aust; 21 October 1944 – 9 January 1945;
Operations:	3 patrols:; 1st patrol:; 11 – 16 July 1944; 2nd patrol:; 18 July – 10 September 1944; 3rd patrol:; 2 November 1944 – 9 January 1945;
Victories:	1 warship sunk ; (39 tons); 1 warship damaged ; (36 tons);

Last updated March 18, 2024

German submarine U-679 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 3 September 1942 by Howaldtswerke-Deutsche Werft, Hamburg as yard number 828, launched on 18 September 1943 and commissioned on 29 November 1943 under Leutnant zur See Friedrich Breckwoldt.

Design

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-679 had 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), a pressure hull length of 50.50 m (165 ft 8 in), a beam of 6.20 m (20 ft 4 in), a height of 9.60 m (31 ft 6 in), and a draught of 4.74 m (15 ft 7 in). The submarine was powered by two Germaniawerft F46 four-stroke, six-cylinder supercharged diesel engines producing 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, two Siemens-Schuckert GU 343/38-8 double-acting electric motors producing 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-679 was fitted with five 53.3 cm (21 in) torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes, one 8.8 cm (3.46 in) SK C/35 naval gun, (220 rounds), one 3.7 cm (1.5 in) Flak M42 and two twin 2 cm (0.79 in) C/30 anti-aircraft guns. The boat had a complement of between forty-four and sixty.^[3]

Service history

The boat's career began with training at 31st Flotilla on 29 November 1943, followed by active service on 1 August 1944 as part of the 8th Flotilla. U-679 took part in no wolfpacks. U-679 was presumed sunk on 9 January 1945 in the Baltic Sea at 59°26′N24°07′E / 59.433°N 24.117°E / 59.433; 24.117 by depth charges from Soviet anti-submarine vessel MO-124. However, the wreckage was located in August 2015 and initial reports suggest that actually U-679 had run into a mine and sank after that. Wreckage lies at depth of 90 metres at a location, which is somewhat different from the information given earlier.^[4]^[5]

Summary of raiding history

Date	Ship Name	Nationality	Tonnage^{[Note 1]}	Fate^[6]
15 July 1944	TK-57	Soviet Navy	36	Damaged
18 November 1944	SK-62	Soviet Navy	39	Sunk

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References

Notes

↑ Merchant ship tonnages are in gross register tons. Military vessels are listed by tons displacement.

Citations

↑ Helgason, Guðmundur. "Friedrich Breckwoldt". German U-boats of WWII - uboat.net. Retrieved 30 March 2015.
↑ Helgason, Guðmundur. "Eduard Aust". German U-boats of WWII - uboat.net. Retrieved 30 March 2015.
1 2 3 4 Gröner 1991, pp. 43–46.
↑ Suunto: www.suunto.com/sports/News-Articles-container-page/U-boat-U679/, accessdate: 17. September 2015
↑ yle.fi: Finnish diver finds sub from WWII | Yle Uutiset | yle.fi, accessdate: 17. September 2015
↑ Helgason, Guðmundur. "Ships hit by U-679". German U-boats of WWII - uboat.net. Retrieved 30 March 2015.

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.
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.
Kemp, Paul (1997). U-Boats Destroyed – German Submarine Losses in the World Wars. Arms and Armour Press. p. 228. ISBN 1-85409-321-5.
Sharpe, Peter (1998). U-Boat Fact File. Great Britain: Midland Publishing. ISBN 1-85780-072-9.

External links

Helgason, Guðmundur. "The Type VIIC U-boat U-679". German U-boats of WWII - uboat.net. Retrieved 30 March 2015.

This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.

[tonnage-6] Merchant ship tonnages are in gross register tons. Military vessels are listed by tons displacement.

[1] Helgason, Guðmundur. "Friedrich Breckwoldt". German U-boats of WWII - uboat.net. Retrieved 30 March 2015.

[2] Helgason, Guðmundur. "Eduard Aust". German U-boats of WWII - uboat.net. Retrieved 30 March 2015.

[FOOTNOTEGröner199143–46-3] 1 2 3 4 Gröner 1991, pp. 43–46.

[suunto.com-4] Suunto: www.suunto.com/sports/News-Articles-container-page/U-boat-U679/, accessdate: 17. September 2015

[http://yle.fi/uutiset/finnish_diver_finds_sub_from_wwii/8312584-5] yle.fi: Finnish diver finds sub from WWII | Yle Uutiset | yle.fi, accessdate: 17. September 2015

[7] Helgason, Guðmundur. "Ships hit by U-679". German U-boats of WWII - uboat.net. Retrieved 30 March 2015.

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[Note 1]

[6]

v t e German 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 January 1945
Shipwrecks	2 Jan: Yu 1 4 Jan: USS Ommaney Bay, Lewis L. Dyche 5 Jan: Ha-71 , Ha-82 , Kanko Maru, Momi, Isaac Shelby, Shunsen Maru, Yu 3 6 Jan: USS Long 7 Jan: USS Hovey, USS Palmer 9 Jan: Cha-216, Kuroshio Maru, U-679, U-1020 11 Jan: Hakuyo Maru, T-76 Kotall 12 Jan: CD-17 , CD-19 , CD-23 , CD-35 , CD-43 , CD-51 , Ikutagawa Maru , Kashii, Lamotte-Picquet, Louhi, M-1, Otowa Maru, PB-103 , USS Swordfish, T.140, W-101 14 Jan: I-362 15 Jan: Claus Rickmers, Hatakaze, Tsuga, USS YP-73 16 Jan: Deyatelny , Donau, U-248 17 Jan: U-2515, U-2523, U-2530 19 Jan: HMS Porpoise 21 Jan: U-1199 22 Jan: Saga 23 Jan: I-48 24 Jan: Empire Rupert , USS Extractor, Shigure 26 Jan: HMS Manners, U-1051 27 Jan: U-1172 28 Jan: Sanuki Maru 29 Jan: USS Serpens, U-763 30 Jan: USS Pontiac, Wilhelm Gustloff 31 Jan: Berlin III, USS PC-1129, U-2520 Unknown date: Christian Radich , U-382, U-480, U-650, U-1020
Other incidents	3 Jan: Shakespeare 6 Jan: USS Brooks, USS Spadefish, HMS Walpole 9 Jan: USS Colorado 11 Jan: USS Belknap, I-36 12 Jan: USS English, Otto Petersen, USS Rock 15 Jan: HMS Thane 16 Jan: LST-415 18 Jan: Empire Clansman 24 Jan: USS Guardfish, HMS Twickenham 29 Jan: Gotenland 31 Jan: Shiokaze
1944 1945 1946 December 1944 February 1945

History

Nazi Germany
Name	U-679
Ordered	5 June 1941
Builder	Howaldtswerke, Hamburg
Yard number	828
Laid down	3 September 1942
Launched	18 September 1943
Commissioned	29 November 1943
Fate	Sunk on or 9 January 1945 in the Baltic Sea at 59°26′N24°07′E / 59.433°N 24.117°E / 59.433; 24.117 by depth charges from Soviet A/S vessel MO-124
General characteristics
Class and type	Type VIIC submarine
Displacement	769 tonnes (757 long 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
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	8,500 nmi (15,700 km; 9,800 mi) 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 (4 bow, 1 stern) 14 × torpedoes 1 × 8.8 cm (3.46 in) deck gun (220 rounds) 1 × 3.7 cm (1.5 in) Flak M42 AA gun 2 × twin 2 cm (0.79 in) C/30 anti-aircraft guns
Service record
Part of:	31st U-boat Flotilla 29 November 1943 – 31 July 1944 8th U-boat Flotilla 1 August 1944 – 9 January 1945
Identification codes:	M 53 677
Commanders:	Lt.z.S. / Oblt.z.S. Friedrich Breckwoldt^[1] 29 November 1943 – 20 October 1944 Oblt.z.S. Eduard Aust^[2] 21 October 1944 – 9 January 1945
Operations:	3 patrols: 1st patrol: 11 – 16 July 1944 2nd patrol: 18 July – 10 September 1944 3rd patrol: 2 November 1944 – 9 January 1945
Victories:	1 warship sunk (39 tons) 1 warship damaged (36 tons)