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German submarineU-744

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German World War II submarine

History

Whaler fromHMCS Chilliwack alongside captured German submarineU-744




Nazi Germany
Name	U-744
Ordered	5 June 1941
Builder	F Schichau GmbH,Danzig
Yard number	1547
Laid down	5 June 1942
Launched	11 March 1943
Commissioned	5 June 1943
Fate	Sunk on 6 March 1944


General characteristics
Class & type	Type VIIC submarine
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	8,500 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) 2 × twin2 cm (0.79 in) C/30 anti-aircraft guns


Service record
Part of	8th U-boat Flotilla 5 June – 30 November 1943 9th U-boat Flotilla 1 December 1943 – 6 March 1944
Identification codes	M 51 807
Commanders	Oblt.z.S. Heinz Blischke 5 June 1943 – 6 March 1944
Operations	2 patrols: 1st patrol: 2 December 1943 – 15 January 1944 2nd patrol: 24 February – 6 March 1944
Victories	1 merchant ship sunk (7,359 GRT) 1 warship sunk (1,625 tons)

German submarineU-744 was atype VIIC U-boat,launched on 11 March 1943, commanded byOberleutnant zur See Heinz Blischke.

Design

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German Type VIIC submarines were preceded by the shorterType VIIB submarines.U-744 had a displacement of 769 tonnes (757 long tons) when at the surface and 871 tonnes (857 long tons) while submerged.^[1] She had a total length of 67.10 m (220 ft 2 in), apressure hull length of 50.50 m (165 ft 8 in), abeam of 6.20 m (20 ft 4 in), a height of 9.60 m (31 ft 6 in), and adraught of 4.74 m (15 ft 7 in). The submarine was powered by twoGermaniawerft F46 four-stroke, six-cylindersupercharged 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, twoAEG GU 460/8–27double-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).^[1]

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).^[1] 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-744 was 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 acomplement of between forty-four and sixty.^[1]

Service history

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She had two patrols, one from 2 December 1943 until 15 January 1944 and 24 February 1944 until 6 March 1944. She sank two ships in total,Empire Housman on 3 January 1944, and thelanding ship tank HMSLST-362 on 2 March 1944.^[2]

U-744 was forced to surface on 6 March 1944, after a 31-hour pursuit by British and Canadian ships. She was depth-charged byHMS Icarus, causing her crew to abandon her. They were picked up by the corvetteHMS Kenilworth Castle, the Canadianfrigate HMCS St. Catharines, corvettesHMCS Fennel andHMCS Chilliwack and destroyersHMCSChaudiere andHMCS Gatineau in theNorth Atlantic.U-744 was then boarded by Allied sailors, who retrieved code books and other documents. Most of this was lost while being transferred between the U-Boat and the Allied ships. After attempts to tow the submarine into port failed,U-744 was scuttled by the allied warships.^[3]

Wolfpacks

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U-744 took part in fivewolfpacks, namely:

Coronel 1 (15 – 17 December 1943)
Sylt (18 – 23 December 1943)
Rügen 2 (23 – 28 December 1943)
Rügen 1 (28 December 1943 – 3 January 1944)
Preussen (26 February – 6 March 1944)

Summary of raiding history

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Date	Ship Name	Nationality	Tonnage^{[Note 1]}	Fate^[4]
3 January 1944	Empire Housman	United Kingdom	7,359	Sunk
2 March 1944	HMSLST-362	Royal Navy	1,625	Sunk

References

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Notes

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^Merchant ship tonnages are ingross register tons. Military vessels are listed by tonsdisplacement.

Citations

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^^a ^b ^c ^dGröner 1991, pp. 43–46.
^Helgason, Guðmundur."The Type VIIC boat U-744".German U-boats of WWII - uboat.net. Retrieved2 December 2011.
^"U-744 is boarded" U Boat Archivehttp://www.uboatarchive.net/U-257-U-744Photos.htm Archived 9 June 2012 at theWayback Machine
^Helgason, Guðmundur."Ships hit by U-744".German U-boats of WWII - uboat.net. Retrieved30 January 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).Der U-Boot-Krieg, 1939-1945: 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.
Gröner, Eric; 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.

External links

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Helgason, Guðmundur."The Type VIIC boat U-744".German U-boats of WWII - uboat.net. Retrieved29 December 2014.
Hofmann, Markus."U 744".Deutsche U-Boote 1935-1945 - u-boot-archiv.de (in German). Retrieved29 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 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
194319441945 February 1944April 1944

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