German submarineU-682

History
Nazi Germany
Name	U-682
Ordered	25 August 1941
Builder	Howaldtswerke,Hamburg
Yard number	831
Laid down	21 December 1942
Launched	7 March 1944
Commissioned	17 April 1944
Fate	Destroyed during air raid on 11 March 1945
General characteristics
Class and type	Type VIICsubmarine
Displacement	769t(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	17.7knots(32.8 km/h; 20.4 mph) surfaced; 7.6 knots (14.1 km/h; 8.7 mph) submerged;
Range	8,500nmi(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 ×torpedo tubes(four bow, one stern); 14 × 53.3 cm (21 in)torpedoes; 1 ×8.8 cm (3.46 in) deck gun(220 rounds); 1 ×3.7 cm (1.5 in) Flak M42AA gun; 2 × twin2 cm (0.79 in) C/30anti-aircraft guns;
Service record
Part of:	31st U-boat Flotilla; 17 April – 30 November 1944; 11th U-boat Flotilla; 1 December 1944 – 1 February 1945; 31st U-boat Flotilla; 1 February – 11 March 1945;
Identification codes:	M 50 037
Commanders:	Lt.z.S.d.R./Oblt.z.S.d.R.Sven Thienemann; 17 April 1944 – 11 March 1945;
Operations:	None
Victories:	None

German submarineU-682was aType VIIC U-boatofNazi Germany'sKriegsmarineduringWorld War II.The submarine waslaid downon 21 December 1942 at theHowaldtswerkeyard atHamburg,launchedon 7 March 1944, andcommissionedon 17 April 1944 under the command ofLeutnant zur Seed.R.Sven Thienemann.

Design

German Type VIIC submarineswere preceded by the shorterType VIIB submarines.U-682had a displacement of 769 tonnes (757 long tons) when at the surface and 871 tonnes (857 long tons) while submerged.^[1]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, twoSiemens-SchuckertGU 343/38–8double-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).^[1]

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).^[1]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-682was 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), one3.7 cm (1.5 in) Flak M42and two twin2 cm (0.79 in) C/30anti-aircraft guns. The boat had acomplementof between forty-four and sixty.^[1]

Service history

U-682was destroyed during an air raid on the Howaldtswerke yard in Hamburg in the early hours of 11 March 1945.

Sensors

Passive sonar

U-682was one of only ten Type VIIC's to be fitted with aBalkongerät(literally 'Balcony apparatus or equipment'). TheBalkongerätwas used on U-boats (U-788,U-799,U-997,U-1021,U-1105,U-1172,U-1306,U-1307andU-1308).^[2]TheBalkongerätwas standard on the Type XXI and theType XXIII.Nonetheless, it was also fitted to several Type IXs and oneType X.TheBalkongerätwas an improved version ofGruppenhorchgerät(GHG) (group listening device). The GHG had 24 hydrophones, theBalkongeräthad 48 hydrophones and improved electronics, which enabled more accurate readings to be taken.^[3]

The outside view of the German design of Balcongerät installed on Type VIIC's

References

^^a ^b ^c ^dGröner 1991,pp. 43–46.
^Base on war-time photographs.
^"Hydrophones".U-boats Aces - uboataces.Retrieved20 May2016.

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, 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.

External links

Helgason, Guðmundur."The Type VIIC boat U-682".German U-boats of WWII - uboat.net.Retrieved23 July2015.

53°32′N9°57′E/ 53.533°N 9.950°E/53.533; 9.950

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

[2] Base on war-time photographs.

[3] "Hydrophones".U-boats Aces - uboataces.Retrieved20 May2016.

[1]

[2]

[3]

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 March 1945
Shipwrecks	1 Mar:USSHannibal 2 Mar:U-3519 3 Mar:HMTSouthern Flower,HMASSteady Hour 4 Mar:U-3508 5 Mar:Nagara Maru 6 Mar:Albert Ballin,Z28 7 Mar:U-1302 10 Mar:Amiral Charner,U-275,U-681 11 Mar:U-682 12 Mar:Sperrbrecher 18,USSBass,U-260,V 315Bris 13 Mar:HMSSealion 13 Mar.Taber Park 14 Mar:Hugo Zeye,U-714,U-1021 15 Mar:USSLancetfish 16 Mar:U-367 17 Mar:HMCSGuysborough 18 Mar:U-866,TA24 19 Mar:Empire Blessing,Suma,Samselbu 20 Mar:M18,Hakuyo Maru,HMSLapwing 21 Mar:James Eagan Layne 23 Mar:Gneisenau,Ro-41,USSS-21 24 Mar:Tomozuru 26 Mar:HMASTerka,U-399,U-1003,Zähringen 27 Mar:U-722,U-905 28 Mar:USSSkylark,USSTrigger 29 Mar:Cha-156,Kommandøren,U-1106,U-1169 30 Mar:Köln,U-96,U-348,U-350,U-429,U-430,U-870,U-884,U-965,U-1131,U-1167,U-2340,U-3508 31 Mar:Ha-60,I-8 Unknown date:Ha-69,USSKete,U-296
Other incidents	1 Mar:USSGuitarro 6 Mar:Greenhill Park 11 Mar:USSPiranha,U-1201 16 Mar:I-47 18 Mar:Brünhilde 19 Mar:USSFranklin,Ryūhō 20 Mar:USSPiranha 21 Mar:USSSpadefish 23 Mar:U-1003 26 Mar:USSHalligan,HMSPuffin 29 Mar:HMCSTeme 30 Mar:U-1197 31 Mar:USSCase,USSCoos Bay,USSSpot Unknown date:U-758
194419451946 February 1945April 1945