Events on this day
This is a run-down from several databases on our site. It's meant to give a clear picture of events on this date, all year round.
U-boat Shipyard report
|Ordered (0)||Laid down (0)||Launched (3)||Commissioned (0)|
|No U-boat orders on this date||No boats laid down on this date||1941: U-258, U-441 |
|No boats commissioned on this date|
|These are commissioned boats. For more see our Shipyard pages.|
Allied Ships hit on this date
|U-boat||Commander||Name of ship||Tons||Country||Convoy|
|U-159||Witte||City of Bombay||7,140||br|
|* Unless otherwise noted the ships listed here were sunk. (d) = damaged|
See all Allied ships hit by U-boats during WWII.
Attacks on this day
U-593. 00.30 hrs, Mediterranean, NE of Bougie, Algeria: the boat was attacked by Wellington aircraft MP816 (36 Sqn RAF/B, pilot F/O C.F. Parker) during the Swamp operation that followed the sinking of HMS Tynedale and HMS Holcombe by U-593 on 12 December. The aircraft approached the U-boat after radar contact but the Leigh Light failed and it was hit in the port wing and tailplane by very accurate AA fire. The tail gunner fired 600 rounds at U-593 and a sighting report was made that led to her sinking by the US destroyer USS Wainwright and the British escort destroyer HMS Calpe. The damaged Wellington landed safely at Bone. (Franks/Zimmerman)
U-636. Four men were wounded when the machine gun exploded during an air attack.
1943: U-391 +, U-593 , U-172
1944: U-365 +
114 men died when those 4 U-boats were lost on this date. 97 men survived.
Survivors from U-boats almost always landed in allied captivity.
U-boats marked with + were lost with all hands.
- For more information on U-boat losses check out our Fates section.
U-boat Men Lost or Wounded
An explosion in Brest (France) harbor killed 1 man, Maschinenobergefreiter Josef Zander.
- For more information on Men lost from U-boats check out this page.
See the entire U-boat commander listing showing all U-boat commanders.
We might include more officers (Allied and Axis) at a later date.
U-boat departures and arrivals on 13 December
This section shows the U-boat departures and arrivals from bases on this day of the year. Current country names shown with harbour names. Boats entering port display days at sea during that patrol.
U-boats at sea on 13 December
Boats entering port on this day are not counted, but boats departing for patrol are. (+) indicates the boat was lost during this patrol.
U-43, U-67, U-68, U-74, U-77, U-83, U-86, U-107, U-108, U-124, U-127 (+), U-128, U-129, U-130, U-131 (+), U-202, U-332, U-371, U-372, U-374, U-375, U-431, U-432, U-434 (+), U-453, U-557 (+), U-559, U-562, U-565, U-566, U-568, U-569, U-573, U-574 (+), U-575, U-576, U-581, U-584, U-653, UA.
40 boats at sea.
U-24, U-67, U-81, U-83, U-86, U-91, U-92, U-103, U-105, U-106, U-109, U-123, U-124, U-125, U-126, U-128, U-129, U-130, U-134, U-135, U-154, U-155, U-159, U-161, U-163, U-164 (+), U-172, U-174, U-175, U-176, U-177, U-178, U-181, U-182 (+), U-183, U-185, U-203, U-211, U-212, U-214, U-217, U-221, U-225, U-257, U-301, U-336, U-356 (+), U-371, U-373, U-375, U-380, U-384, U-405, U-409, U-410, U-432, U-435, U-439, U-440, U-441, U-443, U-445, U-453, U-455, U-460, U-461, U-463, U-465, U-507 (+), U-508, U-513, U-514, U-515, U-518, U-519, U-524, U-552, U-553, U-561, U-562, U-563, U-564, U-565, U-569, U-591, U-592, U-593, U-600, U-602, U-604, U-609, U-610, U-615, U-618, U-620, U-621, U-623, U-626 (+), U-628, U-653, U-657, U-659, U-663, U-664, U-706, U-757, U-758, UD-3.
108 boats at sea.
U-9, U-68, U-73 (+), U-92, U-103, U-107, U-129, U-154, U-155, U-170, U-178, U-190, U-193, U-219, U-223, U-228, U-230, U-269, U-270, U-275, U-277, U-284 (+), U-302, U-305 (+), U-311, U-354, U-358, U-364 (+), U-382, U-387, U-390, U-392, U-415, U-421, U-424, U-445, U-471, U-510, U-515, U-516, U-530, U-541, U-543, U-544 (+), U-545 (+), U-565, U-596, U-618, U-625, U-629, U-636, U-641 (+), U-653, U-667, U-672, U-734, U-741, U-744, U-761, U-801, U-843, U-846, U-850 (+), U-952, U-960, U-962, U-972 (+), U-976, U-981.
69 boats at sea.
U-181, U-195, U-244, U-248 (+), U-278, U-286, U-293, U-295, U-296, U-299, U-310, U-313, U-318, U-322 (+), U-325, U-396, U-400 (+), U-427, U-481, U-485, U-486, U-636, U-637, U-650 (+), U-668, U-679 (+), U-680, U-722, U-737 (+), U-772 (+), U-773, U-775, U-806, U-843, U-862, U-869 (+), U-870, U-877 (+), U-905, U-956, U-958, U-965, U-978, U-979, U-991, U-995, U-997, U-1003, U-1009, U-1020 (+), U-1053, U-1055, U-1163, U-1202, U-1209 (+), U-1223, U-1227, U-1228, U-1230, U-1231, U-1232.
61 boats at sea.
General Events on 13 December
British codebreakers cracked the Shark cipher (KM: Triton) used by the 4-wheel Enigma machine. This restored the strategic advantage in the Battle of the Atlantic to the Allies, following the success of new Wolfpack tactics. The BdU habit of transmitting orders at the start of patrols meant the Wolfpacks could be countered.
Add more events! - If you know of an interesting event that happened on this day that's missing, or an upcoming event that you'd like to share, please contact us. We already have 782 entries that will appear in due course, so your suggestion may not appear immediately, but we are continuously updating the database.