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German submarineU-1107

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German World War II submarine

History

Nazi Germany
Name	U-1107
Ordered	2 April 1942
Builder	Nordseewerke,Emden
Yard number	229
Laid down	20 August 1943
Launched	30 June 1944
Commissioned	8 August 1944
Fate	Sunk on 30 April 1945
General characteristics
Type	Type VIIC/41 submarine
Displacement	759tonnes (747long tons) surfaced 860 long tons (874 t) submerged
Length	67.23 m (220 ft 7 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) Calculated crush depth: 250–295 m (820–968 ft)
Complement	44-52 officers & ratings
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 ×2 cm (0.79 in) C/30 AA guns
Service record^[1]
Part of:	8th U-boat Flotilla 8 August 1944 – 15 February 1945 11th U-boat Flotilla 16 February – 30 April 1945
Identification codes:	M 26 199
Commanders:	Oblt.z.S. /Kptlt. Fritz Parduhn^[2] 8 August 1944 – 30 April 1945
Operations:	1 patrol: 29 March – 30 April 1945
Victories:	2 merchant ships sunk (15,209 GRT)

German submarineU-1107 was aType VIIC/41 U-boat built forNazi Germany'sKriegsmarine for service duringWorld War II.She waslaid down on 20 August 1943 byNordseewerke,Emden as yard number 229,launched on 30 June 1944 andcommissioned on 8 August 1944 underOberleutnant zur See Fritz Parduhn.

Design

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Like allType VIIC/41 U-boats,U-1107 had a displacement of 759 tonnes (747 long tons) when at the surface and 860 tonnes (850 long tons) while submerged. She had a total length of 67.23 m (220 ft 7 in), apressure hull length of 50.50 m (165 ft 8 in), a beam of 6.20 m (20 ft 4 in), and a draught of 4.74 m (15 ft 7 in).^[3] The submarine was powered by twoGermaniawerft F46supercharged six-cylinder four-strokediesel engines producing a total of 2,800 to 3,200 metric horsepower (2,060 to 2,350 kW; 2,760 to 3,160 shp) and twoSSW GU 343/38-8double-acting electric motors producing a total of 750 metric horsepower (550 kW; 740 shp) for use while submerged. The boat was capable of operating at a depth of 250 metres (820 ft).^[3]

The submarine had a maximum surface speed of 17.7 knots (32.8 km/h; 20.4 mph) and a submerged speed of 7.6 knots (14.1 km/h; 8.7 mph). 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).^[3]U-1107 was fitted with five 53.3 cm (21 in)torpedo tubes (four fitted at the bow and one at the stern), fourteentorpedoes or 26 TMA or TMBNaval mines, one8.8 cm (3.46 in) SK C/35 naval gun, (220 rounds), one3.7 cm (1.5 in) Flak M42 and two2 cm (0.79 in) C/30 anti-aircraft guns. Itscomplement was between forty-four and sixty.^[3]

Service history

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The boat's career began with training at8th U-boat Flotilla on 8 August 1944, followed by active service on 16 February 1945 as part of the11th Flotilla for the remainder of her service. In one patrol she sank two merchant ships, for a total of 15,209 gross register tons (GRT).

Fate

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Sources agree thatU-1107 was sunk on 30 April 1945 in theBay of Biscay west ofBrest, but differ as to the exact location of the sinking and the immediate cause: according to one source,U-1107 was sunk at position48°12′N05°42′W / 48.200°N 5.700°W /48.200; -5.700 by a homing torpedo from a US NavyLiberator ofVP-103 with all hands lost,^[1] whereas another source reportsU-1107 being sunk at position48°00′N06°30′W / 48.000°N 6.500°W /48.000; -6.500 by one or more out of 24 bombs dropped by USNCatalina 'R' ofVPB-63, flown by Lt. F.G. Lake, on aMAD Rover patrol with 37 submarine crew killed and an unknown number surviving.^[4]

Summary of raiding history

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Date	Ship Name	Nationality	Tonnage (GRT)	Fate^[5]
18 April 1945	Cyrus H. McCormick	United States	7,181	Sunk
18 April 1945	Empire Gold	United Kingdom	8,028	Sunk

References

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^^a ^bHelgason, Guðmundur."The Type VIIC/41 boat U-1107".German U-boats of WWII - uboat.net. Retrieved16 September 2014.
^Helgason, Guðmundur."Fritz Parduhn".German U-boats of WWII - uboat.net. Retrieved26 March 2015.
^^a ^b ^c ^dGröner 1991, pp. 43–46.
^Kemp, Paul (1997).U-Boats Destroyed - German submarine Losses in the World Wars. London: Arms and Armour Press. p. 255.
^Helgason, Guðmundur."Ships hit by U-1107".German U-boats of WWII - uboat.net. Retrieved16 September 2014.

Bibliography

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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).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.ISBN 1-85409-321-5.
Sharpe, Peter (1998).U-Boat Fact File. Great Britain: Midland Publishing.ISBN 1-85780-072-9.

External links

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"The Type VII/C41 boat U-1107".German U-boats of WWII - uboat.net. Retrieved6 December 2014.

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,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,Ursus 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
194419451946 March 1945May 1945