German submarine U-1102

	Type VIIC submarine U-570 which looked almost identical to U-1102.
History
Nazi Germany
Name	U-1102
Ordered	5 June 1941
Builder	Nordseewerke, Emden
Yard number	224
Laid down	16 April 1943
Launched	15 January 1944
Commissioned	22 February 1944
Decommissioned	12 May 1944
Recommissioned	15 August 1944
Fate	Surrendered on 13 May 1945; Sunk on 21 December 1945 during Operation Deadlight;
General characteristics
Class and type	Type VIIC submarine
Displacement	864.7 t (851 long tons) submerged
Length	67.10 m (220 ft 2 in) o/a; 50.50 m (165 ft 8 in) pressure hull;
Beam	6.18 m (20 ft 3 in) o/a; 4.68 m (15 ft 4 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 × 4-stroke M6V 40/46 Germaniawerft; 2 x 62 batteries ; 2 x six-cylinder supercharged diesel engines ; 2 × electric motors;
Speed	17.6 knots (32.6 km/h; 20.3 mph) surfaced; 7.5 knots (13.9 km/h; 8.6 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	220 m (720 ft); Crush depth: 250–295 m (820–968 ft);
Complement	44-57 crew
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:	8th U-boat Flotilla; 22 February – 12 May 1944; U-boat Defense School; 15 August 1944 – 8 May 1945;
Identification codes:	M 55 331
Commanders:	Oblt.z.S. Bernhard Schwarting; 22 February – 12 May 1944; Oblt.z.S. Erwin Sell; 15 August 1944 – 13 May 1945;
Operations:	None
Victories:	None

German submarine U-1102 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.^[1]

Construction

The U-1102 was laid down on 16 April 1943 at the Nordseewerke shipyard in Emden, Germany. She was launched on 15 January 1944 and commissioned on 22 February 1944 under the command of Oberleutnant zur See Bernhard Schwarting.^[2]

When she was completed, the submarine was 67.10 metres (220 ft 2 in) long, with a beam of 6.18 metres (20 ft 3 in), a height of 9.60 metres (31 ft 6 in) and a draft of 4.74 metres (15 ft 7 in). She was assessed at 864.7 t (851 long tons) submerged. 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 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. She had two shafts and two 1.23 m (4 ft) propellers. The submarine was capable of operating at depths of up to 230 metres (750 ft), had a maximum surface speed of 17.6 knots (32.6 km/h; 20.3 mph) and a maximum submerged speed of 7.5 knots (13.9 km/h; 8.6 mph).When submerged, the U-boat could operate for 80 nautical miles (150 km; 92 mi) at 4 knots (7.4 km/h; 4.6 mph) and when surfaced, she could travel 8,500 nautical miles (15,700 km; 9,800 mi) at 10 knots (19 km/h; 12 mph).^[3]

The submarine 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) deck 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 boat had a complement of 44 to 57 men.^[3]

Service history And Accident

U-1102 was used as a Training ship in the 8th U-boat Flotilla from 22 February 1944 until 12 May 1944. On 24 March 1944, the U-boat sank during a diving accident at the U-boat base quay in Pillau. Two crew members were lost in the incident and U-1102 was raised and decommissioned on 12 May 1944. She was brought to Danzig for repairs and returned to service as a school boat on 15 August 1944 under the command of a new commander Oberleutnant zur See Erwin Sell.^[2] U-1102 took part in the Operation Hannibal and sailed on the 1 January 1945 from Gotenhafen to Swinemünde^[4] and finally to Kiel where she surrendered.

Capture And End

U-1102 surrendered on 13 May 1945 in the Hohwacht Bay, Germany to the Allied Forces. The submarine was transferred to Wilhelmshaven via Kiel and was transferred to Loch Ryan on 23 June 1945. She stayed in Loch Ryan until her sinking in Operation Deadlight (post-war Allied operation) on 21 December 1945, when she was towed to sea by the British destroyer HMS Zetland.^[1]

U-1102 was sunk at 15:05 on 21 December 1945 in the North Atlantic, North-West off the coast of Ireland by naval gun fire from the Polish destroyer ORP Piorun, the British destroyers HMS Onslaught and HMS Zetland and the British sloop HMS Fowey.^[2]

Wreck

Her wreck lies at 56°04′N 09°35′W / 56.067°N 9.583°W / 56.067; -9.583.^[1]

References

^ ^a ^b ^c Hofmann, Markus (2 February 2014). "U-1102". Deutsche U-Boote 1935-1945 - u-boot-archiv.de (in German). Retrieved 8 April 2016.
^ ^a ^b ^c Helgason, Guðmundur (1995). "U-1102". German U-boats of WWII - uboat.net. Retrieved 8 April 2016.
^ ^a ^b "U-1102 (+1945)". wrecksite.eu. 29 November 2009. Retrieved 8 April 2016.
^ KTB der 25. Minensuchflottille, "Bundesarchiv Berlin", 1945, (in German)

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.
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.

[ASM-1] Hofmann, Markus (2 February 2014). "U-1102". Deutsche U-Boote 1935-1945 - u-boot-archiv.de (in German). Retrieved 8 April 2016.

[OSM-2] Helgason, Guðmundur (1995). "U-1102". German U-boats of WWII - uboat.net. Retrieved 8 April 2016.

[ESM-3] "U-1102 (+1945)". wrecksite.eu. 29 November 2009. Retrieved 8 April 2016.

[4] KTB der 25. Minensuchflottille, "Bundesarchiv Berlin", 1945, (in German)

[1]

[2]

[3]

[4]

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 1944
Shipwrecks	1 Mar: HMS Gould, Sakito Maru, U-358, U-603, U-709 4 Mar: U-472 5 Mar: U-366 6 Mar: U-744, U-973 10 Mar: USS Leopold, William B. Woods, U-343, U-450, U-625, U-845 11 Mar: Dupleix, Fresnel, Pascal, U-380, U-410, UIT-22 13 Mar: Peleus, Tatsuta, U-575 15 Mar: Dupleix, Empire Ace, U-653 16 Mar: Shirakumo, U-392 17 Mar: U-28, U-801, U-1013 19 Mar: U-1059 20 Mar: HMS Graph, Seydlitz 22 Mar: Cattaro 23 Mar: I-42, U-575 24 Mar: I-32, Schwabenland, Sinkyo Maru, U-1102 25 Mar: U-976 26 Mar: USS Tullibee 28 Mar: HMS Syrtis, Tulagi 29 Mar: U-961 30 Mar: Akashi, HMS Laforey, Patrol Boat No. 31, U-223 Unknown date: Goshū Maru, HMS Stonehenge, HMS Syrtis, U-851
Other incidents	3 Mar: Karatsu, USS Sand Lance 10 Mar: I-185 18 Mar: I-165 29 Mar: USS Gunnel, I-26
1943 1944 1945 February 1944 April 1944

v t e Shipwrecks and maritime incidents in May 1944
Shipwrecks	1 May: U-277 2 May: U-674, U-959 3 May: USS Donnell, U-852 4 May: U-371, U-846 5 May: USS Fechteler 6 May: U-66, U-473, U-765 7 May: HMCS Valleyfield 9 May: USS PC-558 10 May: Karukaya, Totila 11 May: USS YF-415 13 May: Ro-501 14 May: America Maru, Inazuma, U-1234 15 May: U-731 16 May: I-176 17 May: U-616 19 May: I-16, U-960, U-1015 21 May: USS LST-353, USS LST-480, U-453 22 May: Asanagi, Hashidate, Ro-106 23 May: Ro-104 24 May: Ro-116, U-675 25 May: U-476, U-990 26 May: Ro-108 27 May: U-292 28 May: UJ 2210 29 May: USS Block Island, U-549 31 May: Ishigaki, Kotaka, Ro-105, U-289 Unknown date: U-240
Other incidents	2 May: USS Parrott 4 May: HMS Elgin 5 May: Hayasui, I-155 12 May: USS Bream, U-1102 15 May: La Sultane 16 May: U-616 21 May: West Loch disaster 24 May: U-476 26 May: Serpa Pinto 27 May: USS Lapon, USS Raton 28 May: USS Permit Unknown date: USS Medusa
1943 1944 1945 April 1944 June 1944

v t e Shipwrecks and maritime incidents in December 1945
Shipwrecks	1 Dec: USS Bellona, U-826, U-1004, U-1061, U-1104 3 Dec: U-994 4 Dec: U-218, U-299, U-539, U-777 5 Dec: U-1005 7 Dec: U-245, U-907, U-1019 8 Dec: U-485, U-773, U-775, U-1203, U-1271, U-1272 9 Dec: U-532, U-1052, U-1307 11 Dec: U-716, U-978, U-991, U-1163 13 Dec: Empire Tigaven, HMS N 86, U-255, U-293, U-295, U-760, U-997, U-1002 16 Dec: U-483, U-739, U-928, U-992, U-1009, U-1301 17 Dec: U-368, U-779, U-956, U-1198, U-1230 20 Dec: U-291 21 Dec: U-149, U-150, U-155, U-318, U-427, U-637, U-720, U-806, U-1102, U-1110 22 Dec: U-143, U-145, U-1194, U-2354 23 Dec: Duncan L. Clinch 27 Dec: Empire Tigawa, U-313 28 Dec: U-680 29 Dec: USS Minivet, U-390, U-930, U-1022, U-1233 30 Dec: Lambridge, U-1103, U-1165 31 Dec: U-294, U-363, U-668, U-802, U-861, U-874, U-875, U-883, U-2341 Unknown date: USS Industry
Other incidents	11 Dec: I-201 30 Dec: Éridan
1944 1945 1946 November 1945

History
Type VIIC submarine U-570 which looked almost identical to U-1102.
Nazi Germany
Name	U-1102
Ordered	5 June 1941
Builder	Nordseewerke, Emden
Yard number	224
Laid down	16 April 1943
Launched	15 January 1944
Commissioned	22 February 1944
Decommissioned	12 May 1944
Recommissioned	15 August 1944
Fate	Surrendered on 13 May 1945 Sunk on 21 December 1945 during Operation Deadlight
General characteristics
Class and type	Type VIIC submarine
Displacement	864.7 t (851 long tons) submerged
Length	67.10 m (220 ft 2 in) o/a 50.50 m (165 ft 8 in) pressure hull
Beam	6.18 m (20 ft 3 in) o/a 4.68 m (15 ft 4 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 × 4-stroke M6V 40/46 Germaniawerft 2 x 62 batteries 2 x six-cylinder supercharged diesel engines 2 × electric motors
Speed	17.6 knots (32.6 km/h; 20.3 mph) surfaced 7.5 knots (13.9 km/h; 8.6 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	220 m (720 ft) Crush depth: 250–295 m (820–968 ft)
Complement	44-57 crew
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:	8th U-boat Flotilla 22 February – 12 May 1944 U-boat Defense School 15 August 1944 – 8 May 1945
Identification codes:	M 55 331
Commanders:	Oblt.z.S. Bernhard Schwarting 22 February – 12 May 1944 Oblt.z.S. Erwin Sell 15 August 1944 – 13 May 1945
Operations:	None
Victories:	None