German submarineU-347

History
Nazi Germany
Name	U-347
Ordered	10 April 1941
Builder	Nordseewerke,Emden
Yard number	219
Laid down	19 October 1942
Launched	21 May 1943
Commissioned	7 July 1943
Fate	Sunk by a British aircraft on 17 July 1944
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; 7 July 1943 – 28 February 1944; 9th U-boat Flotilla; 1 March – 31 May 1944; 11th U-boat Flotilla; 1 June – 17 July 1944;
Identification codes:	M 53 298
Commanders:	Oblt.z.S.Johan de Buhr; 7 July 1943 – 17 July 1944;
Operations:	4 patrols:; 1st patrol:; 9 – 13 May 1944; 2nd patrol:; 15 May – 8 June 1944; 3rd patrol:; 23 June 1944; 4th patrol:; 3 – 17 July 1944;
Victories:	None

German submarineU-347was aType VIIC U-boatofNazi Germany'sKriegsmarineduringWorld War II.

She was a member of threewolfpacks.

She was on her fourth patrol when she was sunk by a British aircraft on 17 July 1944.

She sank or damaged no ships.

Design

German Type VIIC submarineswere preceded by the shorterType VIIB submarines.U-347had a displacement of 769 tonnes (757 long tons) when at the surface and 871 tonnes (857 long tons) while submerged.^[4]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, twoAEGGU 460/8–27double-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).^[4]

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).^[4]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-347was 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.^[4]

Service history

The submarine waslaid downon 19 October 1942 at theNordseewerkeyard atEmdenas yard number 219,launchedon 21 May 1943 andcommissionedon 7 July under the command ofOberleutnant zur SeeJohahn de Buhr.

U-347served with the8th U-boat Flotilla,for training and the9th flotillafor operations from 1 March 1944. She was reassigned to the11th flotillaon 1 June 1944.

First patrol

U-347had sailed fromKielin Germany toStavangerin Norway March 1944, but her first patrol began when she departed Stavanger on 9 May. She arrived atNarvikon the 13th.

Second patrol

Her second foray began on 15 May 1944 when she departed Narvik (a port she would use as a base for the rest of her career), for theNorwegian Sea.She returned on 8 June.

Third patrol

U-347departed Narvik on 23 June 1944; she returned the same day.

Fourth patrol and loss

The boat had departed Narvik on 3 July 1944. On the 17th, she was sunk by aB-24 LiberatorofNo. 86 Squadron RAF.^[5]

Forty-nine men died in the U-boat's sinking; there were no survivors.^[6]

Previously recorded fate

U-347was thought to have been sunk on 17 July 1944 west of Narvik by a BritishPBY CatalinaofNo. 210 Squadron RAF.The pilot, Flying OfficerJohn Cruickshank,was awarded theVictoria Crossfor sinkingU-361.^[5]

Wolfpacks

U-347took part in threewolfpacks,namely:

Trutz (15 – 31 May 1944)
Grimm (31 May – 6 June 1944)
Trutz (5 – 10 July 1944)

References

^Kemp 1999,p. 204.
^Helgason, Guðmundur."The Type VIIC boat U-347".German U-boats of WWII – uboat.net.Retrieved23 August2012.
^Helgason, Guðmundur."War Patrols by German U-boat U-347".German U-boats of WWII – uboat.net.Retrieved23 August2012.
^^a ^b ^c ^dGröner 1991,pp. 43–46.
^^a ^bHelgason, Guðmundur."The Type VIIC boat U-347".German U-boats of WWII – uboat.net.Retrieved26 December2014.
^Hofmann, Markus."U 347".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).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.
Kemp, Paul (1999).U-Boats Destroyed – German Submarine Losses in the World Wars.London: Arms & Armour.ISBN 1-85409-515-3.

External links

Helgason, Guðmundur."The Type VIIC boat U-347".German U-boats of WWII – uboat.net.Retrieved26 December2014.
Hofmann, Markus."U 347".Deutsche U-Boote 1935–1945 – u-boot-archiv.de(in German).Retrieved26 December2014.

[FOOTNOTEKemp1999204-1] Kemp 1999,p. 204.

[uboatnet-2] Helgason, Guðmundur."The Type VIIC boat U-347".German U-boats of WWII – uboat.net.Retrieved23 August2012.

[patrols-3] Helgason, Guðmundur."War Patrols by German U-boat U-347".German U-boats of WWII – uboat.net.Retrieved23 August2012.

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

[uboat.net-5] Helgason, Guðmundur."The Type VIIC boat U-347".German U-boats of WWII – uboat.net.Retrieved26 December2014.

[6] Hofmann, Markus."U 347".Deutsche U-Boote 1935–1945 – u-boot-archiv.de(in German).Retrieved26 December2014.

[1]

[2]

[3]

[4]

[5]

[6]

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 July 1944
Shipwrecks	2 Jul:Empire Broadsword,U-543 3 Jul:U-154,U-1191 4 Jul:I-10,USSS-28,Sarushima,V 208R. Walther Darré,V 210Hinrich Hey 5 Jul:Galatée,U-233,U-390,U-586,U-642,Usugumo 6 Jul:Hokaze 7 Jul:Saubadia,Tamanami,U-678 8 Jul:Perle,HMSPylades,U-243 9 Jul:Shahzada,USSSwerve 10 Jul:Duilio,Giulio Cesare 11 Jul:U-1222 14 Jul:U-415 15 Jul:V 621Mars,U-319 16 Jul:Niobe,Norjerv 17 Jul:E. A. Bryan,I-166,Quinault Victory,U-347,U-361 18 Jul:U-672,U-742 19 Jul:Ōi,Ro-48,Teiryu Maru 20 Jul:ORPDragon,HMSIsis 21 Jul:U-212 23 Jul:Empire Bittern 24 Jul:U-239,U-1164,V 209Dr. Rudolf Wahrendorff,William Gaston 26 Jul:I-29,USSRobalo,U-214,U-2323 27 Jul:V-1,No. 1 30 Jul:U-250 31 Jul:Fuso Maru,Yoshino Maru,U-333 Unknown date:I-55
Other incidents	4 Jul:V 209Dr. Rudolf Wahrendorff 6 Jul:USSSunfish,HMSTrollope 7 Jul:ORPDragon 8 Jul:Empire Brutus 13 Jul:HMSEskimo,V 203Carl Röver 17 Jul:Port Chicago disaster 24 Jul:U-239 27 Jul:HMASFremantle,HMASWilcannia 28 Jul:U-1166 29 Jul:U-872,Z44
194319441945 June 1944August 1944