Events on this day

23 September

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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 (25) Laid down (4) Launched (4) Commissioned (6)
1939: U-201, U-202, U-203, U-204, U-251, U-252, U-253, U-254, U-255, U-331, U-332, U-333, U-334, U-371, U-372, U-373, U-374, U-401, U-402, U-403, U-404, U-431, U-432, U-433, U-4341941: U-634
1943: U-1064, U-1065, U-1306
1941: U-118, U-409
1942: U-534
1943: U-247
1939: U-54
1942: U-271
1943: U-997, U-1192
1944: U-1065, U-3504
These are commissioned boats. For more see our Shipyard pages.

Allied Ships hit on this date

 U-boatCommanderName of shipTonsCountryConvoy
 U-4Klot-HeydenfeldtWalma 1,361   fi
 U-125FolkersBruyère 5,335   br
 U-211HauseEsso Williamsburg (d)11,237   am
 U-515HenkeAntinous (d)6,034   am
 U-515HenkeLindvangen 2,412   nw
 U-617BrandiAthelsultan 8,882   brSC-100
 U-617BrandiTennessee 2,342   brSC-100
 U-238HeppFort Jemseg 7,134   brON-202
 U-238HeppOregon Express 3,642   nwON-202
 U-238HeppSkjelbred 5,096   nwON-202
 U-666EngelHMS Itchen (K 227) 1,370   brON-202
 U-952CurioJames Gordon Bennett (d)7,176   amON-202
 U-952CurioSteel Voyager 6,198   amON-202
 U-957SchaarBrilliant (No 29) 550   sjVD-1
* 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-607. The boat escaped with only light damage boat after being rammed by a destroyer. (Blair, vol 2, page 34.)

U-515. The boat was fired on by the freighter Antonius and dived to escape.

U-255. U-255 was attacked by a Catalina flying boat (RAF Sqdn 210/U, F/Sgt J.W. Semmons) south of Jan Mayen Island and was forced to return to base by heavy damage from two depth charges.

U-177. 13.30 hrs, SE of Iceland: the boat was bombed by a twin-engined aircraft as it was diving. The bomb caused no damage.


U-758. Depth charged by convoy escorts and forced to withdraw for repairs. (Blair, vol 2, page 424)

U-422. The boat was depth charged and strafed by an allied aircraft identified as a Halifax. Three men were wounded, two of them seriously. After requesting medical assistance the boat rendezvoused with milch cow U-460 on the 29th of September. (Blair, vol 2, page 424)


U-979. On attacking a small convoy, one of the escorts, the British anti-submarine trawler HMS St. Kenan, rammed and depth charged the boat. Damage to the periscope forced U-979 to return to Bergen. (Blair, vol 2, page 632)

U-boats lost

1944: U-859

47 men died when this U-boat was lost. 20 men survived.

Survivors from U-boats almost always landed in allied captivity.

- For more information on U-boat losses check out our Fates section.

U-boat Men Lost or Wounded


On 23 Sept at 06.05 hrs a man was lost overboard. [Bootsmannmaat Erwin Henning]


In the Baltic Sea a man was washed overboard. [Matrosengefreiter Erwin Stiegeler]

- For more information on Men lost from U-boats check out this page.

Personnel Information

The following men were born on this day:
Fritz Berends (1906), Ernst-Ulrich Brüller (1917), Werner Happe (1915), Walther Jahrmärker (1917), Günter Poser (1916), Helmut Vogler (1916), Wolf-Werner Wilzer (1916).

The following men died on this day:
Hans Buscher (1957), Johann Jebsen (1944), Dierk Lührs (2003), Konstantin von Rappard (1986), Viktor Schütze (1950).

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 23 September

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.


From Wilhelmshaven, Germany: U-12 (lost 16 days later)


From St. Nazaire, France: U-46


From Lorient, France: U-205

U-boats entering base:
To Lorient, France: U-43 (53 days)
To Trondheim, Norway: U-752 (5 days)


From Lorient, France: U-43, U-160

U-boats entering base:
To Brest, France: U-256 (2 days)


From Brest, France: U-103
From Kiel, Germany: U-714, U-962
From La Pallice: U-231
From Lorient, France: U-154, U-211, U-306
From Narvik, Norway: U-956
From Skjomenfjord: U-302
From St. Nazaire, France: U-437, U-608

U-boats entering base:
To Bergen, Norway: U-537 (6 days)


From Kiel, Germany: U-1226
From Reval: U-1165
From Singapore, Singapore: U-181
From St. Nazaire, France: U-267

U-boats entering base:
To Bergen, Norway: U-218 (45 days)
To Danzig, Germany: U-479 (25 days)
To Lübeck U-716 (2 days)
To Penang, Malaysia: U-861 (157 days)
To Skillefjord U-313 (4 days)
To Tromsö, Norway: U-965 (3 days)

U-boats at sea on 23 September

Boats entering port on this day are not counted, but boats departing for patrol are. (+) indicates the boat was lost during this patrol.


U-3, U-4, U-7, U-12 (+), U-13, U-14, U-15, U-16, U-18, U-21, U-24, U-26, U-28, U-29, U-30, U-31, U-32, U-33, U-34, U-35, U-36, U-53.
22 boats at sea.


U-29, U-31, U-32, U-43, U-46, U-47, U-48, U-60, U-65, U-99, U-100, U-103, U-123, U-137, U-138.
15 boats at sea.


U-66, U-67, U-68, U-69, U-74, U-94, U-97, U-98, U-103, U-107, U-108, U-111 (+), U-124, U-125, U-132, U-201, U-203, U-204 (+), U-205, U-371, U-372, U-373, U-431, U-433, U-552, U-559, U-562, U-564, U-565, U-572, U-575.
31 boats at sea.


U-43, U-66, U-67, U-68, U-69, U-87, U-91, U-92, U-96, U-106, U-107, U-109, U-116 (+), U-117, U-118, U-125, U-126, U-128, U-135, U-156, U-159, U-160, U-161, U-164, U-165 (+), U-171 (+), U-172, U-175, U-176, U-177, U-178, U-179 (+), U-181, U-183, U-201, U-202, U-211, U-212, U-214, U-216 (+), U-217, U-218, U-221, U-251, U-253 (+), U-254, U-255, U-257, U-258, U-259, U-260, U-332, U-333, U-353, U-356, U-373, U-375, U-377, U-378, U-380, U-382, U-404, U-406, U-407, U-408, U-410, U-411, U-431, U-432, U-435, U-437, U-441, U-442, U-453, U-455, U-459, U-460, U-461, U-504, U-506, U-507, U-511, U-512 (+), U-513, U-514, U-515, U-516, U-517, U-552, U-558, U-561, U-562, U-569, U-575, U-582 (+), U-584, U-590, U-592, U-594, U-595, U-596, U-597 (+), U-599 (+), U-606, U-607, U-608, U-610, U-615, U-617, U-618, U-619 (+), U-620, U-661 (+), U-662, U-703, U-706, U-753, U-755, UD-5.
119 boats at sea.


U-18, U-68, U-81, U-91, U-103, U-107, U-123, U-155, U-161 (+), U-168, U-170, U-177, U-181, U-183, U-188, U-196, U-198, U-214, U-218, U-220 (+), U-221 (+), U-223, U-238, U-260, U-264, U-270, U-275, U-277, U-279 (+), U-305, U-306, U-307, U-336 (+), U-360, U-377, U-378 (+), U-386, U-387, U-389 (+), U-402 (+), U-410, U-419 (+), U-422 (+), U-437, U-448, U-455, U-460 (+), U-488, U-505, U-518, U-532, U-533 (+), U-536 (+), U-539, U-565, U-584 (+), U-593, U-601, U-603, U-608, U-610 (+), U-621, U-631 (+), U-641, U-643 (+), U-645, U-666, U-667, U-703, U-711, U-713, U-731, U-758, U-848 (+), U-952, U-956, U-960.
77 boats at sea.


U-92, U-155, U-170, U-190, U-195, U-219, U-242, U-244, U-245, U-248, U-256, U-260, U-262, U-267, U-278, U-281, U-290, U-294, U-296, U-307, U-309, U-312, U-315, U-348, U-370, U-382, U-398, U-425, U-480, U-481, U-482, U-516, U-518, U-530, U-534, U-541, U-546, U-547, U-548, U-668, U-673, U-676, U-711, U-714, U-717, U-739, U-745, U-758, U-763, U-772, U-802, U-804, U-853, U-857, U-858, U-863 (+), U-871 (+), U-921 (+), U-953, U-956, U-957, U-958, U-963, U-979, U-985, U-989, U-992, U-997, U-1001, U-1004, U-1062 (+), U-1165, U-1199, U-1221, U-1223, U-1227.
76 boats at sea.

General Events on 23 September


U-48 and U-99 searched for survivors from a crashed Heinkel He 111 aircraft in naval grid BF 17.


U-68 inspected the Spanish tanker Gobeo.

U-107 made contact with convoy SL 87 which was attacked the following day.


U-561 was forced to return to her base in the Mediterranean due to technical problems.


U-601 and U-960 laid a mine barrier off Port Dickson, Russia.

U-962 was damaged in a collision with the German minesweeper M-343 in Danish waters.


U-267 was the last U-boat to leave the base at St. Nazaire on 23 Sept. 1944 (U-255 remained and eventually surrendered there in May 1945). She arrived at Stavanger, Norway 29 Oct.


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