German submarine U-398

History
Nazi Germany
Name	U-398
Ordered	20 January 1941
Builder	Howaldtswerke AG, Kiel
Yard number	30
Laid down	26 August 1942
Launched	6 November 1943
Commissioned	18 December 1943
Fate	Went missing after 17 April 1945 in the North Sea or possibly the Arctic Ocean, position and cause unknown. 43 missing (all hands presumed lost).
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;
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	8,500 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 (four bow, one 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:	5th U-boat Flotilla; 18 December 1943 – 31 July 1944; 3rd U-boat Flotilla; 1 August – 31 October 1944; 33rd U-boat Flotilla; 1 November 1944 – 17 April 1945;
Identification codes:	M 54 603
Commanders:	K.Kapt. Johann Reckhoff; 18 December 1943 – 8 November 1944; Oblt.z.S. Wilhelm Cranz; 9 November 1944 – 17 April 1945;
Operations:	2 patrols:; 1st patrol:; a. 23 August – 15 October 1944; b. 19 – 24 October 1944; c. 8 – 16 March 1945; 2nd patrol:; 14 – 17 April 1945;
Victories:	None

German submarine U-398 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. The U-boat was laid down at the Howaldtswerke in Kiel on 26 August 1942, launched on 6 November 1943 and commissioned on 18 December of that same year, under Korvettenkapitän Johan Reckhoff. He was replaced by Oberleutnant zur See Wilhelm Kranz on 8 November 1944.

The boat served initially with the 5th U-boat Flotilla, a training organization, between 18 December 1943 and 31 July 1944, before moving over to the operational 3rd flotilla between 1 August and 31 October 1944 and the 33rd flotilla between 1 November 1944 and her loss.

Design

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-398 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 Garbe, Lahmeyer & Co. RP 137/c 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-398 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 commissioning of an unknown refit to the external shell and restructuring of internal cabin facilities before her final voyage has been rumoured, but German naval records haven't confirmed this. The boat had a complement of between forty-four and sixty.^[3]

Service history

U-398 carried out two patrols, the first, commencing on 23 August 1944, took her as far as the west coast of Ireland; starting from Horten Naval Base in Norway and finishing with her arrival in Bergen on 15 October. A total of 54 days were spent at sea. These were uneventful.

Her second patrol ended abruptly after just four days in April 1945. She vanished without trace in either the North Sea or possibly the Arctic Ocean. The cause for her disappearance remains unknown.

References

^ Helgason, Guðmundur. "The Type VIIC boat U-398". German U-boats of WWII - uboat.net. Retrieved 26 December 2014.
^ Helgason, Guðmundur. "The Type VIIC boat U-398". German U-boats of WWII - uboat.net. Retrieved 10 September 2012.
^ ^a ^b ^c ^d Gröner 1991, pp. 43–46.

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). Deutsche U-Boot-Verluste von September 1939 bis Mai 1945 [German U-boat losses from September 1939 to May 1945]. Der U-Boot-Krieg (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-398". German U-boats of WWII - uboat.net. Retrieved 26 December 2014.

[1] Helgason, Guðmundur. "The Type VIIC boat U-398". German U-boats of WWII - uboat.net. Retrieved 26 December 2014.

[uboatnet-2] Helgason, Guðmundur. "The Type VIIC boat U-398". German U-boats of WWII - uboat.net. Retrieved 10 September 2012.

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

[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 April 1945
Shipwrecks	1 Apr: Awa Maru 2 Apr: CD-186, USS Dickerson, U-321 3 Apr: Brummer, USS S-16, U-1221, U-2542, U-3505, T111 4 Apr: USS Dickerson, U-237, U-749, U-3003 5 Apr: U-242, USS S-17 6 Apr: Amatsukaze, USS Bush, USS Colhoun, USS Leutze, USS Morris, USS Newcomb, USS Witter, SS Hobbs Victory, SS Logan Victory 7 Apr: Asashimo, Hamakaze, Isokaze, Isuzu, Kasumi, USS LST-447, Oldenburg, USS PGM-18, U-1195, Yahagi, Yamato 8 Apr: U-774, U-1001 9 Apr: Admiral Scheer, Ro-56, U-677, U-747, U-804, U-843, U-982, U-1065, U-2509, U-2514, U-3512, U-2516, Vale 10 Apr: U-878, Weser 12 Apr: USS Mannert L. Abele, Ro-64, U-486 13 Apr: Karlsruhe, U-1024 14 Apr: Belgian Airman, German submarine U-235, U-1206 15 Apr: U-103, U-285, U-1063, U-1235 16 Apr: HMCS Esquimalt, Lützow, USS Pringle, U-78, U-880, U-1274 17 Apr: Goya 19 Apr: Aquila, U-251, U-548, U-879 21 Apr: U-636 22 Apr: USS Swallow, U-518 23 Apr: USS Eagle Boat 56, U-183 24 Apr: USS Frederick C. Davis, U-108, U-546 25 Apr: Graf Zeppelin, Ro-109, TA 32, U-326 27 Apr: Canada Victory, TA 34 28 Apr: CH-17, U-56 29 Apr: I-44, U-56, U-286, U-307, U-1017 30 Apr: HMS Goodall, TA 43, U-879, U-1107 Unknown date: I-56, Ro-46, Ro-49, USS Snook, U-246, U-325, U-396, U-398, U-548, U-857, U-1055
Other incidents	2 Apr: USS Dickerson 5 Apr: USS Thornton 6 Apr: USS Defense, USS Emmons, USS Mullany, USS Rodman 8 Apr: USS Bullhead 9 Apr: USS Sea Devil 11 Apr: I-401 12 Apr: USS Lindsey, U-1024, USS Zellars 14 Apr: USS Sigsbee 15 Apr: HMS Ekins, USS Laffey 16 Apr: USS Bryant, Goya, USS Harding 19 Apr: USS Bullhead, USS Pogy, USS Tolman 27 Apr: HMS Redmill 28 Apr: Argo, USS Huron 29 Apr: USS Baya 30 Apr: U-3525
1944 1945 1946 March 1945 May 1945