German submarine U-1107

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 30 April 1945 in the North Atlantic in position 48°00′N 06°30′W / 48.000°N 6.500°W, by bombs from a US Catalina flying boat.
General characteristics
Class and type	Type VIIC/41 submarine
Displacement	759 tonnes (747 long 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
Part of:	8th U-boat Flotilla; 8 August 1944 – 15 February 1945 - Training; 11th U-boat Flotilla; 16 February – 30 April 1945;
Commanders:	Kptlt. Fritz Parduhn; 8 August 1944 – 30 April 1945;
Operations:	29 March – 30 April 1945
Victories:	2 merchant ships sunk (15,209 GRT)

German submarine U-1107 was a Type VIIC/41 U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 20 August 1943 by Nordseewerke, Emden as yard number 229, launched on 30 June 1944 and commissioned on 8 August 1944 under Oberleutnant zur See Fritz Parduhn.

Design

Like all Type 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), a pressure hull length of 50.50 m (165 ft 8 in), a beam length of 6.20 m (20 ft 4 in), and a draught length of 4.74 m (15 ft 7 in).^[3] The submarine was powered by two Germaniawerft F46 supercharged six-cylinder four-stroke 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) and two SSW GU 343/38-8 double-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), fourteen torpedoes or 26 TMA or TMB Naval mines, 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 2 cm (0.79 in) C/30 anti-aircraft guns. Its complement was between forty-four and sixty.^[3]

Service history

The boat's career began with training at 8th U-boat Flotilla on 8 August 1944, followed by active service on 16 February 1945 as part of the 11th 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). U-1107 was sunk on 30 April 1945 in the Bay of Biscay in position 48°00′N 06°30′W / 48.000°N 6.500°W / 48.000; -6.500, by bombs from US Navy Catalina 'R' of VPB-63, flown by Lt F.G. Lake. The aircraft was flying a MAD Rover patrol, and dropped 24 bombs when the craft was detected.^[4] 37 crew were killed with an unknown number of survivors.

Summary of raiding history

Date	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

^ Helgason, Guðmundur. "The Type VIIC/41 boat U-1107". German U-boats of WWII - uboat.net. Retrieved 16 September 2014.
^ Helgason, Guðmundur. "Fritz Parduhn". German U-boats of WWII - uboat.net. Retrieved 26 March 2015.
^ ^a ^b ^c ^d Gröner 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. Retrieved 16 September 2014.

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] (in German). Vol. IV. Hamburg; Berlin; Bonn: Mittler. ISBN 3-8132-0514-2. {{cite book}}: |work= ignored (help)
Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. Vol. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4. {{cite book}}: |work= ignored (help)
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

"The Type VII/C41 boat U-1107". German U-boats of WWII - uboat.net. Retrieved 6 December 2014.

[uboatnet-1] Helgason, Guðmundur. "The Type VIIC/41 boat U-1107". German U-boats of WWII - uboat.net. Retrieved 16 September 2014.

[2] Helgason, Guðmundur. "Fritz Parduhn". German U-boats of WWII - uboat.net. Retrieved 26 March 2015.

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

[4] Kemp, Paul (1997). U-Boats Destroyed - German submarine Losses in the World Wars. London: Arms and Armour Press. p. 255.

[5] Helgason, Guðmundur. "Ships hit by U-1107". German U-boats of WWII - uboat.net. Retrieved 16 September 2014.

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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