| Name | From | To | Boats | Ships Sunk | Ships Damaged | Boats Lost | Notes |
|---|
| Hartmann | Oct 1939 | Apr 1940 | 6 | 7 | 0 | 3 | Atlantic Ocean vs convoys KJF.3 and HG.3. Comprised U-37, U-40 (lost), U-42 (lost), U-45 (lost), U-46 and U-48. The name Hartmann was not an official codename. |
| Prien | 12 Jun 1940 | 17 Jun 1940 | 7 | 5 | 0 | 0 | Atlantic Ocean vs convoys HX.47 and HX.48. Comprised U-25, U-28, U-30, U-32, U-38, U-47 and U-51. Sank the British tanker San Fernando (U-47), the Norwegian tanker Eli Knudsen (U-32) and the Norwegian Randsfjord (U-30). |
| Rösing | 12 Jun 1940 | 15 Jun 1940 | 5 | 4 | 0 | 0 | Atlantic Ocean off northwest Spain vs convoys SL.34 and US.3. Comprised U-29, U-43, U-46, U-48 and U-101. |
| West | 8 May 1941 | 20 Jun 1941 | 23 | 33 | 4 | 1 | Two-part operation in the Atlantic Ocean vs convoys HX.126, HX.128, OB.317, OB.318, OB.322, OB.327, OB.328, OB.329, OB.330 and SC.30. Comprised, at times, U-43, U-46, U-48, U-66, U-73, U-74, U-75, U-77, U-93, U-94, U-97, U-98, U-101, U-108, U-109, U-110 (lost), U-111, U-201, U-204, U-553, U-556, U-557 and U-751. |
| Kurfürst | 16 Jun 1941 | 20 Jun 1941 | 5 | 1 | 0 | 0 | Atlantic Ocean vs convoy SL.76. Comprised U-43, U-73, U-201, U-204 and U-371. |
| Süd | 22 Jul 1941 | 5 Aug 1941 | 4 | 0 | 0 | 0 | Atlantic Ocean, off the northwest coast of Africa. Comprised U-93, U-94, U-109 and U-124. |
| Hammer | 5 Aug 1941 | 12 Aug 1941 | 3 | 0 | 0 | 0 | Atlantic Ocean, off the southwestern approaches to the UK. Comprised U-96, U-105 and U-751. |
| Grönland | 10 Aug 1941 | 27 Aug 1941 | 21 | 3 | 1 | 0 | Atlantic Ocean vs convoy ON.4. Comprised U-38, U-43, U-71, U-73, U-77, U-82, U-84, U-96, U-101, U-105, U-129, U-202, U-206, U-501, U-553, U-563, U-567, U-568, U-569, U-652 and U-751. Sank the HMS Picotee (U-568) and damaged the British auxiliary minelayer HMS Southern Prince (U-652). |
| Kurfürst II | 23 Aug 1941 | 2 Sep 1941 | 7 | 0 | 0 | 0 | Atlantic Ocean vs convoy OG.73. Comprised U-77, U-96, U-206, U-553, U-563, U-567 and U-568. |
| Markgraf | 27 Aug 1941 | 16 Sep 1941 | 15 | 17 | 4 | 2 | Atlantic Ocean vs convoys ON.10, ON.11 and SC.42. Comprised U-38, U-43, U-81, U-82, U-84, U-85, U-105, U-202, U-207 (lost), U-432, U-433, U-501 (lost), U-569 and U-652. |
| Bosemüller | 28 Aug 1941 | 2 Sep 1941 | 8 | 1 | 0 | 0 | Atlantic Ocean vs convoys SL.84 and OG.73. Comprised U-71, U-83, U-95, U-557, U-558, U-561, U-562 and U-751. |
| Seewolf | 2 Sep 1941 | 15 Sep 1941 | 17 | 5 | 0 | 0 | Atlantic Ocean vs convoy ON.14 and/or convoy OG.73. Comprised U-69, U-71, U-77, U-83, U-94, U-95, U-96, U-98, U-206, U-553, U-557, U-558, U-561, U-563, U-567, U-568 and U-751. |
| Brandenburg | 15 Sep 1941 | 2 Oct 1941 | 11 | 11 | 0 | 0 | Atlantic Ocean vs convoys ON.14, SC.42, SC.44 and ON.16. Comprised U-69, U-74, U-94, U-372, U-373, U-431, U-552, U-562, U-564, U-572, U-575. Sank the corvette HMCS Lévis (U-74) and 10 merchant ships. |
| Goeben | 16 Sep 1941 | 5 Oct 1941 | 6 | 0 | 0 | 0 | Mediterranean Sea via the Strait of Gibraltar. Comprised U-75, U-79, U-97, U-331, U-371 and U-559. |
| Breslau | 2 Oct 1941 | 29 Oct 1941 | 6 | 9 | 1 | 1 | Atlantic Ocean vs convoys OG.75 and HG.75. Comprised U-71, U-83, U-204 (lost), U-206, U-563, and U-564. Sank the British destroyer HMS Cossack (U-563) and corvette HMS Fleur de Lys (U-206); damaged the merchant ship Ariguani. |
| Mordbrenner | 16 Oct 1941 | 3 Nov 1941 | 4 | 2 | 0 | 0 | Off Newfoundland vs convoys including ON.27 and SC.52. Comprised U-105, U-208, U-374 and U-573. |
| Schlagetot | 20 Oct 1941 | 1 Nov 1941 | 9 | 2 | 1 | 0 | Atlantic Ocean vs convoy SL.89. Comprised U-38, U-82, U-84, U-85, U-93, U-123, U-202, U-203 and U-569. Damaged the armed merchant cruiser RMS Aurania (U-123). |
| Reissewolf | 21 Oct 1941 | 31 Oct 1941 | 7 | 1 | 0 | 0 | North Atlantic Ocean vs convoy HG.75. Comprised U-73, U-77, U-101, U-432, U-502, U-568 and U-751. |
| Stosstrupp | 30 Oct 1941 | 4 Nov 1941 | 6 | 2 | 0 | 0 | Atlantic Ocean vs convoys OS.10 and HX.156. Comprised U-96, U-133, U-552, U-567, U-571 and U-577. Sank the US destroyer USS Reuben James (U-552). |
| Raubritter | 1 Nov 1941 | 17 Nov 1941 | 14 | 4 | 0 | 0 | Atlantic Ocean off Newfoundland vs convoy SC.52. Comprised U-38, U-74, U-82, U-84, U-85, U-93, U-106, U-123, U-133, U-202, U-203, U-569, U-571 and U-577. |
| Arnauld | 5 Nov 1941 | 18 Nov 1941 | 4 | 1 | 0 | 1 | Individual U-boats from the Atlantic into the Mediterranean through the Strait of Gibraltar; U-81, U-205, U-433 (lost) and U-565. Sank the British HMS Ark Royal . |
| Störtebecker | 5 Nov 1941 | 2 Dec 1941 | 19 | 0 | 0 | 0 | Atlantic Ocean vs OS.11. Comprised U-69, U-77, U-85, U-96, U-98, U-103, U-107, U-123, U-133, U-201, U-332, U-372, U-373, U-402, U-552, U-567, U-571, U-572 and U-577. |
| Steuben | 14 Nov 1941 | 2 Dec 1941 | 6 | 3 | 0 | 0 | Atlantic Ocean, off the Cape Race area of Newfoundland, vs Allied convoys including OS.12. Comprised U-43, U-105, U-372, U-434, U-574 and U-575. |
| Benecke | 19 Nov 1941 | 2 Dec 1941 | 4 | 0 | 0 | 0 | Atlantic Ocean vs OG-series convoys. Comprised U-96, U-332, U-402 and U-552. |
| Gödecke | 19 Nov 1941 | 26 Nov 1941 | 4 | 0 | 0 | 0 | Atlantic Ocean, along with the Benecke and Störtebecker wolfpacks, vs OG.77. Comprised U-69, U-98, U-201 and U-572. |
| Letzte Ritter | 25 Nov 1941 | 4 Dec 1941 | 3 | 0 | 0 | 0 | Atlantic Ocean. Comprised U-69, U-201 and U-402. |
| Seeräuber | 14 Dec 1941 | 23 Dec 1941 | 8 | 3 | 0 | 4 | Atlantic Ocean vs convoy HG.76. Comprised U-67, U-71, U-107, U-108, U-125, U-127, U-131, U-434, U-567 and U-574. |
| Ulan | 25 Dec 1941 | 19 Jan 1942 | 3 | 4 | 1 | 0 | Norwegian Sea vs convoys PQ.7A, PQ.7B and PQ.8. Comprised U-134, U-454 and U-584. Sank the British destroyer HMS Matabele (U-454) and Soviet submarine M-175. |
| Seydlitz | 27 Dec 1941 | 16 Jan 1942 | 7 | 0 | 0 | 1 | Atlantic Ocean vs HG.78. Comprised U-71, U-84, U-93 (lost), U-203, U-373, U-552 and U-571. |
| Zieten | 6 Jan 1942 | 22 Jan 1942 | 12 | 11 | 3 | 0 | Atlantic Ocean, off Newfoundland, vs convoys SC.62, ON.52, SC.63 and ON.53. Comprised U-84, U-86, U-87, U-135, U-203, U-333, U-552, U-553, U-582, U-654, U-701 and U-754. |
|
| Siegfried | 11 Jan 1942 | 16 Jan 1942 | 3 | 0 | 0 | 0 | Central part of the North Atlantic Ocean vs convoys ON.207 and HX.262. Comprised U-71, U-93 and U-571. |
| Robbe | 15 Jan 1942 | 24 Jan 1942 | 4 | 1 | 0 | 0 | UK/Iceland gap vs convoy SC.63. Comprised U-94, U-582, U-587 and U-588. Sank the Greek Dimitrios G. Themiotis and British Caledonian Monarch. |
| Schlei | 16 Jan 1942 | 12 Feb 1942 | 7 | 3 | 0 | 0 | Norwegian Sea and UK/Iceland gap vs convoys ON.63 and SC.67. Comprised U-136, U-212, U-404, U-578, U-591, U-656 and U-753. Two of the three ships sunk were corvettes - British HMS Arbutus (U-136) and Canadian HMCS Spikenard (U-136) - and the third the Norwegian transport Heina. |
| Hecht | 27 Jan 1942 | 4 Feb 1942 | 3 | 0 | 0 | 0 | UK/Iceland gap. Comprised U-352, U-435 and U-455. |
| Umbau | 4 Feb 1942 | 16 Feb 1942 | 4 | 0 | 0 | 0 | Norwegian Sea. Comprised U-134, U-435, U-436 and U-456. |
| Neuland | 16 Feb 1942 | 18 Mar 1942 | ? | ? | ? | ? | Caribbean Sea; used single boats rather than wolfpacks against Allied shipping, especially oil tankers and aluminum ore transport vessels. |
| Westwall | 2 Mar 1942 | 12 Mar 1942 | 8 | 5 | 0 | 0 | Atlantic Ocean, west of the British Isles. Comprised U-87, U-135, U-212, U-553, U-569, U-701, U-752 and U-753. |
| (No Name) | 7 Mar 1942 | 11 Mar 1942 | 4 | 0 | 0 | 0 | |
| Umhang | 10 Mar 1942 | 16 Mar 1942 | 3 | 0 | 0 | 0 | North coast of Norway. Comprised U-436, U-454 and U-456. |
| Blücher | 11 Mar 1942 | 18 Mar 1942 | 3 | 0 | 0 | 0 | West coast of Norway. Comprised U-377, U-403 and U-589. |
| Wrangel | 11 Mar 1942 | 18 Mar 1942 | 2 | 0 | 0 | 0 | Off Norway. Comprised only U-405 and U-592. |
| York | 12 Mar 1942 | 26 Mar 1942 | 4 | 0 | 0 | 0 | Norwegian Sea. Comprised U-135, U-553, U-569 and U-701. |
| Zieten II | 23 Mar 1942 | 29 Mar 1942 | 4 | 0 | 0 | 1 | Off the north coast of Norway. Comprised U-209, U-376, U-378 and U-655 (lost). |
| Eiswolf | 28 Mar 1942 | 31 Mar 1942 | 8 | 2 | 1 | 1 | Arctic Ocean vs convoy PQ.13. Comprised U-209, U-376, U-378, U-435, U-454, U-456, U-585 (lost) and U-589. |
| Naseweis | 31 Mar 1942 | 10 Apr 1942 | 3 | 0 | 0 | 0 | Arctic Ocean in the area bounded by Iceland, Greenland and the Svalbard islands group. Comprised U-334, U-592 and U-667. |
| Bums | 6 Apr 1942 | 14 Apr 1942 | 6 | 0 | 0 | 0 | Northwest coast of Norway. Comprised U-334, U-377, U-403, U-589, U-591 and U-592. |
| Robbenschlag | 7 Apr 1942 | 14 Apr 1942 | 8 | 3 | 0 | 0 | Arctic Ocean off the north coast of Norway vs convoys QP.10 and PQ.14. Comprised U-209, U-376, U-378, U-435, U-436, U-454, U-456 and U-589. |
| Blutrausch | 15 Apr 1942 | 19 Apr 1942 | 10 | 1 | 0 | 0 | Norway vs convoy PQ.14. Comprised U-209, U-376, U-377, U-378, U-403, U-436, U-454, U-456, U-589 and U-592. |
| Strauchritter | 29 Apr 1942 | 5 May 1942 | 9 | 1 | 2 | 0 | Off the north coast of Norway vs convoys QP.11 and PQ.15. Comprised U-88, U-251, U-376, U-378, U-405, U-436, U-456, U-589 and U-703. |
| Hecht II | 8 May 1942 | 18 Jun 1942 | 9 | 14 | 1 | 0 | Atlantic Ocean vs convoys ON.92, ONS.100, ONS.102 plus two other ON-series. Comprised U-94, U-96, U-116, U-124, U-404, U-406, U-569, U-578 and U-590. |
| Greif | 14 May 1942 | 29 May 1942 | 6 | 1 | 0 | 0 | North coast of Norway vs convoys PQ.16 and QP.12. Comprised U-209, U-436, U-582, U-589, U-591 and U-703. |
| Pfadfinder | 21 May 1942 | 27 May 1942 | 8 | 2 | 0 | 0 | Off the east coast of Canada. Comprised U-135, U-212, U-404, U-432, U-455, U-553, U-566, U-578 and U-653. |
| Endraß | 12 Jun 1942 | 17 Jun 1942 | 9 | 5 | 0 | 0 | Atlantic Ocean vs convoy HG.84. Comprised U-71, U-84, U-89, U-132, U-134, U-437, U-552, U-571 and U-575. |
| Eisteufel | 21 Jun 1942 | 12 Jul 1942 | 11 | 13 | 0 | 0 | Norwegian Sea and Arctic Ocean, in conjunction with Operation Rösselsprung vs convoy PQ.17. Comprised U-88, U-251, U-255, U-334, U-355, U-376, U-408, U-456, U-457 and U-657. |
| Hai | 3 Jul 1942 | 21 Jul 1942 | 6 | 9 | 1 | 1 | Atlantic Ocean vs convoy OS.33. Comprised U-116, U-136 (lost), U-201, U-572, U-582 and U-752. |
| Wolf | 13 Jul 1942 | 1 Aug 1942 | 11 | 2 | 2 | 1 | Atlantic Ocean, vs convoys ON.111 and ON.113. Comprised U-43, U-71, U-86, U-90 (lost), U-379, U-454, U-461, U-552, U-597, U-607 and U-704. |
| Nebelkönig | 27 Jul 1942 | 14 Aug 1942 | 10 | 0 | 0 | 0 | Norwegian Sea and Arctic Ocean between Greenland and Norway. Comprised U-255, U-355, U-403, U-405, U-435, U-582, U-589, U-591, U-592 and U-657. |
| Pirat | 29 Jul 1942 | 3 Aug 1942 | 13 | 1 | 2 | 1 | Atlantic Ocean vs convoy ON.115. Comprised U-43, U-71, U-164, U-210, U-217, U-454, U-511, U-552, U-553, U-588 (lost), U-597, U-607 and U-704. |
| Steinbrock | 29 Jul 1932 | 3 Aug 1942 | 11 | 2 | 2 | 1 | Atlantic Ocean, in tandem with Pirat, vs convoy ONS.115. Comprised U-43, U-71, U-164, U-210 (lost), U-217, U-511, U-552, U-553, U-597, U-607 and U-704. |
| Steinbrinck | 3 Aug 1942 | 11 Aug 1942 | 14 | 11 | 3 | 2 | Atlantic Ocean vs convoy SC.94. Comprised U-71, U-176, U-210 (lost), U-256, U-379 (lost), U-454, U-552, U-593, U-595, U-597, U-605, U-607, U-660 and U-704. |
| Lohs | 11 Aug 1942 | 22 Sep 1942 | 19 | 8 | 0 | 1 | Atlantic Ocean vs convoys SC.95, ONS.122, and SC.100. Comprised U-135, U-174, U-176, U-216, U-256, U-259, U-373, U-410, U-432, U-438, U-462, U-569, U-593, U-596, U-599, U-605, U-660, U-705 (lost) and U-755. |
| Blücher | 14 Aug 1942 | 28 Aug 1942 | 8 | 6 | 1 | 0 | Atlantic Ocean vs convoys SL.118 and SL.119. Comprised U-107, U-214, U-333, U-406, U-566, U-590, U-594 and U-653. |
| Eisbär | 17 Oct 1942 | 13 Nov 1942 | 5 | 1 | 0 | 0 | Atlantic off the Iberian peninsula and Northwest Africa vs convoy SL.119. Comprised U-68, U-156, U-172, U-459 and U-504. |
| Vorwärts | 25 Aug 1942 | 26 Sep 1942 | 18 | 15 | 9 | 1 | Atlantic Ocean, in tandem with Stier, vs convoys SC.97, ON.127 and RB.1. Comprised U-91, U-92, U-211, U-218, U-380, U-404, U-407, U-409, U-411, U-461, U-584, U-594, U-604, U-608, U-609, U-659 and U-756 (lost). |
| Stier | 29 Aug 1942 | 2 Sep 1942 | 6 | 0 | 0 | 0 | Atlantic Ocean, in tandem with Vorwärts, vs convoy ON.127. Comprised U-96, U-380, U-404, U-584, U-594 and U-608. |
| Iltis | 25 Aug 1942 | 29 Aug 1942 | 4 | 2 | 0 | 0 | Atlantic Ocean, off the coast of northwest Africa vs convoy SL.119. Comprised U-107, U-214, U-406 and U-566. |
| Pfeil | 12 Sep 1942 | 22 Sep 1942 | 11 | 0 | 0 | 0 | Atlantic Ocean vs convoys SC.99 and ON.129. Comprised U-216, U-221, U-258, U-356, U-440, U-595, U-607, U-615, U-617, U-618 and U-661. |
| Trägertod | 12 Sep 1942 | 22 Sep 1942 | 10 | 4 | 1 | 3 | Arctic Ocean vs convoys PQ.18 and QP.14. Comprised U-88 (lost), U-377, U-378, U-403, U-405, U-408, U-457 (lost), U-589 (lost), U-592 and U-703. Sank the British destroyer HMS Somali (U-703). |
| Blitz | 22 Sep 1942 | 26 Sep 1942 | 19 | 7 | 0 | 0 | Atlantic Ocean vs convoys SC.100, ON.131 and RB.1. Comprised U-216, U-221, U-258, U-259, U-260, U-356, U-310, U-437, U-582, U-595, U-597, U-599, U-607, U-615, U-617, U-618, U-619, U-661 and U-755. |
| Tiger | 26 Sep 1942 | 30 Sep 1942 | 17 | 0 | 0 | 0 | Atlantic Ocean vs convoy ON.131. Comprised U-221, U-258, U-260, U-356, U-407, U-410, U-437, U-575, U-582, U-595, U-597, U-599, U-607, U-615, U-617, U-618 and U-755. |
| Luchs | 27 Sep 1942 | 6 Oct 1942 | 19 | 2 | 0 | 2 | Atlantic Ocean vs convoys SC.101 and HX.209. Comprised U-183, U-216, U-254, U-257, U-260, U-382, U-404, U-437, U-442, U-575, U-582 (lost), U-597, U-610, U-619 (lost), U-620, U-706, U-753 and U-755. |
| Letze Ritter II | 29 Sep 1942 | 1 Oct 1942 | 4 | 0 | 0 | 0 | Atlantic Ocean vs convoys associated with Operation Torch. Comprised U-216, U-404, U-410 and U-584. |
| Tümmler | 1 Oct 1942 | 11 Oct 1942 | 6 | 0 | 0 | 0 | Bay of Biscay, eastern part of the central Atlantic and western part of the Mediterranean. Comprised U-89, U-438, U-458, U-593, U-605 and U-660. |
| Wotan | 5 Oct 1942 | 19 Oct 1942 | 11 | 21 | 0 | 1 | Atlantic Ocean, in tandem with Leopard, vs convoys ON.135, ON.136, SC.104, and ON.137. Comprised U-118, U-216, U-221, U-258, U-356, U-410, U-599, U-607, U-615, U-618 and U-661 (lost). |
| Panther | 6 Oct 1942 | 20 Oct 1942 | 34 | 3 | 0 | 1 | Atlantic Ocean vs convoys SC.103, ONS.136 and ONS.137. Comprised U-71, U-84, U-89, U-132, U-183, U-254, U-260, U-301, U-353, U-381, U-382, U-402, U-437, U-438, U-441, U-442, U-443, U-454, U-518, U-563, U-571, U-575, U-597 (lost), U-602, U-609, U-610, U-620, U-621, U-658, U-662, U-704, U-706, U-753 and U-757. |
| Leopard | 12 Oct 1942 | 19 Oct 1942 | 8 | 1 | 0 | 2 | Atlantic Ocean, in tandem with Wotan, vs convoys ONS.136 and SC.104. Comprised U-254, U-353 (lost), U-382, U-437, U-442, U-597 (lost), U-620 and U-662. |
| Puma | 16 Oct 1942 | 29 Oct 1942 | 13 | 13 | 3 | 0 | Atlantic Ocean vs convoys ON.138, ON.139 and HX.212. Comprised U-224, U-301, U-383, U-436, U-441, U-443, U-563, U-575, U-602, U-606, U-621, U-624 and U-753. |
| Streitaxt | 20 Oct 1942 | 2 Nov 1942 | 10 | 12 | 7 | 0 | Atlantic Ocean, off the Strait of Gibraltar, vs convoy SL.125. Comprised U-103, U-134, U-203, U-409, U-440, U-509, U-510, U-572, U-604 and U-659. |
| Veilchen | 20 Oct 1942 | 7 Nov 1942 | 13 | 8 | 2 | 1 | Atlantic Ocean vs convoy SC.107. Initially comprised U-71, U-84, U-89, U-132, U-381, U-402, U-438, U-454, U-571, U-658 (lost) and U-704, reinforced by U-437 and U-442. |
| Südwärts | 24 Oct 1942 | 26 Oct 1942 | 6 | 0 | 0 | 0 | Atlantic Ocean. Comprised U-154, U-260, U-301, U-620, U-662 and U-706. |
| Natter | 30 Oct 1942 | 8 Nov 1942 | 15 | 2 | 0 | 0 | Atlantic Ocean vs convoy ON.142. Comprised U-86, U-91, U-92, U-98, U-218, U-224, U-383, U-436, U-564, U-566, U-606, U-613, U-624, U-653 and U-753. |
| Delphin | 4 Nov 1942 | 14 Nov 1942 | 9 | 1 | 0 | 1 | Western Mediterranean and eastern Atlantic Ocean off the Strait of Gibraltar. Comprised U-259, U-380, U-407, U-440, U-595 (lost), U-596, U-617, U-662 and U-755. Sank the Dutch Nieuw Zeeland of the Operation Torch invasion convoys. |
| Kreuzotter | 8 Nov 1942 | 24 Nov 1942 | 13 | 7 | 1 | 1 | Atlantic Ocean vs convoy ON.144. Comprised U-84, U-184 (lost), U-224, U-262, U-383, U-454, U-521, U-522, U-606, U-611, U-624 and U-753. |
| Westwall II | 8 Nov 1942 | 16 Dec 1942 | 20 | 11 | 3 | 1 | Atlantic Ocean, in the Bay of Biscay and western Mediterranean, vs convoys for Operation Torch, MKF.1X, MKF.1Y, MKS.1X, KMS.3, ON.149. Comprised U-86, U-91, U-92, U-98 (lost), U-103, U-106, U-118, U-130, U-155, U-185, U-218, U-263, U-411, U-413, U-515, U-519, U-564, U-566, U-613 and U-653. |
| Schlagetot II | 9 Nov 1942 | 21 Nov 1942 | 10 | 4 | 3 | 2 | Off the northwest coast of Africa vs convoy UGF.1. A reaction to Operation Torch. Comprised U-103, U-108, U-130, U-173, U-509, U-510, U-511, U-572 and U-752. |
| Wal | 10 Nov 1942 | 15 Nov 1942 | 8 | 3 | 1 | 2 | Mediterranean Sea vs convoys for Operation Torch. Comprised U-73, U-81 (lost), U-259, U-380, U-407, U-565, U-617 and U-660 (lost). |
| Boreas | 19 Nov 1942 | 9 Dec 1942 | 10 | 2 | 0 | 0 | Between Norway and the Svalbard islands group vs convoy QP.15. Comprised U-209, U-212, U-376, U-378, U-405, U-456, U-582, U-592, U-601 and U-625. Sank the British Goolistan (U-625) and the Soviet Kuznets (U-601). |
| Drachen | 22 Nov 1942 | 3 Dec 1942 | 5 | 2 | 0 | 0 | Atlantic Ocean vs convoys SC.110 and HX.216. Comprised U-262, U-445, U-611, U-623 and U-663. Sank the British Ocean Crusader (HX.216) by U-262 and Barberrys (SC.110) convoy by U-663. |
| Panzer | 23 Nov 1942 | 11 Dec 1942 | 11 | 1 | 0 | 2 | Atlantic Ocean vs HX.217. Comprised U-135, U-211, U-254 (lost), U-439, U-445, U-465, U-524 (lost), U-611, U-623, U-663 and U-758. Sank the British Empire Spenser (U-524). |
| Panther | 29 Nov 1942 | 11 Dec 1942 | 7 | ? | ? | ? | Atlantic Ocean vs convoys ONS.148 and HX.217. Comprised U-135, U-211, U-254, U-439, U-465, U-524 and U-758. |
| Draufgänger | 29 Nov 1942 | 11 Dec 1942 | 10 | 3 | 0 | 0 | Atlantic Ocean vs convoys MKF.3 and HX.217. Comprised U-221, U-373, U-455, U-553, U-569, U-600, U-604, U-609, U-610 and U-615. |
| Büffel | 9 Dec 1942 | 15 Dec 1942 | 3 | 0 | 0 | 0 | Atlantic Ocean vs Convoy HX 218:HX.218. Comprised U-373, U-445 and U-663. |
| Raufbold | 11 Dec 1942 | 22 Dec 1942 | 14 | 4 | 1 | 0 | Atlantic Ocean vs convoys ON.152 and ON.153. Comprised U-135, U-203, U-211, U-356, U-409, U-410, U-439, U-600, U-609, U-610, U-621, U-623 and U-644. |
| Ungestüm | 11 Dec 1942 | 30 Dec 1942 | 13 | 9 | 1 | 0 | Atlantic Ocean vs convoys HX.218, ONS.152 and, in tandem with Spitz, ON.154. Comprised U-336, U-373, U-435, U-445, U-455, U-524, U-569, U-591, U-604, U-615 and U-628. |
| Spitz | 22 Dec 1942 | 31 Dec 1942 | 11 | 8 | 9 | 1 | Atlantic Ocean, in tandem with Ungestüm, vs convoy ONS.154. Comprised U-123, U-203, U-225, U-260, U-356 (lost), U-406, U-440, U-441, U-659, U-662 and U-664. |
| Delphin II | 26 Dec 1942 | 14 Feb 1943 | 17 | 10 | 1 | 2 | Atlantic Ocean vs convoys TM.1 and UGS.4. Comprised U-87, U-107, U-125, U-202, U-258, U-264, U-381, U-436, U-442 (lost), U-463, U-511, U-514, U-522, U-558, U-571, U-575 and U-620 (lost). |
| Falke | 28 Dec 1942 | 19 Jan 1943 | 23 | 6 | 0 | 0 | Atlantic Ocean vs convoys ONS.158, ONS.159, ONS.160 and HX.222. Comprised U-69, U-71, U-167, U-201, U-226, U-257, U-268, U-333, U-384, U-403, U-404, U-414, U-441, U-444, U-525, U-563, U-572, U-584, U-606, U-607, U-631, U-632 and U-706. |
| Habicht | 10 Jan 1943 | 19 Jan 1943 | 10 | 1 | 0 | 0 | Atlantic Ocean vs convoys SC.115 and HX.222. Comprised U-186, U-226, U-268, U-303, U-383, U-438, U-613, U-624, U-704 and U-752. |
| Jaguar | 10 Jan 1943 | 31 Jan 1943 | 8 | 2 | 0 | 0 | Atlantic vs convoys SC.117 and HX.223. Comprised U-96, U-123, U-266, U-413, U-594, U-598, U-662 and U-706. |
| Haugegen | 19 Jan 1943 | 15 Feb 1943 | 26 | 2 | 1 | 1 | Atlantic Ocean vs convoys HX.223, SG.19, HX.225, SC.119 and ON.165. |
| Landsknecht | 19 Jan 1943 | 28 Jan 1943 | 21 | 0 | 0 | 1 | Atlantic Ocean vs convoy HX.224. Comprised U-71, U-187, U-257, U-262, U-267, U-333, U-384, U-402, U-404, U-444, U-454, U-456, U-465, U-553 (lost), U-572, U-584, U-609, U-614, U-631 and U-632. |
| Nordwind | 24 Jan 1943 | 4 Feb 1943 | 7 | 3 | 0 | 0 | Off north coast of Norway vs convoy RA.52. Comprised U-255, U-302, U-622, U-625, U-629 and U-657. |
| Rochen | 27 Jan 1943 | 1 Mar 1943 | 13 | 5 | 3 | 0 | Atlantic Ocean, off northwest Africa, vs convoys UC.1 and ON.165. Comprised U-43, U-66, U-87, U-108, U-118, U-202, U-218, U-258, U-264, U-461, U-504, U-521 and U-558. |
| Pfeil II | 1 Feb 1943 | 9 Feb 1943 | 13 | 11 | 1 | 2 | Atlantic Ocean vs convoy SC.118. Comprised U-89, U-135, U-187 (lost), U-262, U-266, U-267, U-402, U-413, U-454, U-465, U-594, U-608 and U-609 (lost). |
| Nordsturm | 2 Feb 1943 | 9 Feb 1943 | 5 | 1 | 0 | 0 | Atlantic Ocean, south of Greenland, vs convoy SG.19. Comprised U-186, U-223, U-268, U-358 and U-707. |
| Hartherz | 3 Feb 1943 | 7 Feb 1943 | 10 | 0 | 0 | 0 | Atlantic, west of the Bay of Biscay, vs KMS and MKS convoys. Comprised U-71, U-107, U-183, U-332, U-519, U-572, U-584, U-621, U-628, U-653 and U-753. |
| Seehund | 5 Feb 1943 | 12 Apr 1943 | ? | ? | ? | ? | Off the coast of South Africa and in the Indian Ocean. |
| Ritter | 11 Feb 1943 | 26 Feb 1943 | 13 | 5 | 4 | 1 | Atlantic Ocean, in tandem with Knappen, vs convoys HX.226 and ON.166. Comprised U-92, U-225, U-332, U-377, U-454, U-468, U-529, U-603, U-621, U-623 (lost), U-628, U-653 and U-753. |
| Taifun | 15 Feb 1943 | 20 Feb 1943 | 5 | 1 | 0 | 0 | Atlantic Ocean, off Newfoundland and Labrador, vs convoy ONS.165. Comprised U-186, U-223, U-358 and U-707 detached from the Haudegen. |
| Robbe | 16 Feb 1943 | 13 Mar 1943 | 8 | 6 | 2 | 0 | Atlantic Ocean vs convoys UC.1, KMS.10, OS.44 and others. Comprised U-103, U-107, U-382, U-410, U-437, U-445, U-511 and U-569. |
| Neptun | 18 Feb 1943 | 3 Mar 1943 | 11 | 3 | 0 | 0 | Atlantic Ocean vs convoys HX.226 and HX.227. Comprised U-89, U-135, U-359, U-376, U-377, U-405, U-448, U-566, U-608, U-634, U-659, U-709 and U-759. |
| Knappen | 19 Feb 1943 | 25 Feb 1943 | 4 | 2 | 2 | 0 | Atlantic Ocean, in tandem with Ritter, vs convoy ON.166. Comprised U-91, U-92, U-600 and U-604. |
| Sturmbock | 21 Feb 1943 | 26 Feb 1943 | 9 | 2 | 0 | 0 | Atlantic Ocean vs convoy ONS.167. Comprised U-84, U-432, U-591, U-664 and U-758. Sank the Panamanian H. H. Rogers (U-664) and US Rosario (U-664). |
| Burggraf | 24 Feb 1943 | 5 Mar 1943 | 18 | 1 | 0 | 0 | Atlantic vs convoy SC.121. Worked with the Neuland, Ostmark, Westmark and Wildfang wolfpacks. |
| Wildfang | 26 Feb 1943 | 5 Mar 1943 | 10 | 0 | 0 | 0 | Atlantic Ocean, in tandem with Ostmark and Westmark, against the SC.121. Comprised U-84, U-89, U-359, U-409, U-432, U-448, U-591, U-638, U-664 and U-758. |
| Tümmler II | 1 Mar 1943 | 22 Mar 1943 | 6 | 2 | 0 | 0 | Eastern Atlantic Ocean, off northwest Africa and the western approaches to the Strait of Gibraltar, with Unverzagt and Wohlgemut, vs convoys UGS.6 and ON.165. Comprised U-43, U-66, U-202, U-504, U-521 and U-558. |
| Neuland | 4 Mar 1943 | 13 Mar 1943 | 22 | 5 | 2 | 1 | Atlantic Ocean vs convoys HX.228 and SC.121. Comprised U-86, U-190, U-221, U-229, U-336, U-373, U-406, U-439, U-440, U-441, U-444 (lost), U-447, U-448, U-530, U-590, U-608, U-633, U-641, U-642, U-659, U-665 and U-757. |
| Ostmark | 6 Mar 1943 | 11 Mar 1943 | 11 | 5 | 1 | 1 | North Atlantic Ocean vs convoy SC.121. Comprised U-190, U-229, U-439, U-447, U-530, U-618, U-633 (lost), U-641, U-642, U-665 and U-666. |
| Westmark | 6 Mar 1943 | 11 Mar 1943 | 17 | 10 | 0 | 1 | Atlantic Ocean, together with Burggraf, Neuland, Ostmark and Wildfang, vs convoys SC.121 and HX.228. Comprised U-228, U-230, U-332, U-359, U-405, U-409, U-432 (lost), U-448, U-523, U-526, U-527, U-566, U-591, U-616, U-634, U-659 and U-709. |
| Raubgraf | 7 Mar 1943 | 20 Mar 1943 | 13 | 11 | 3 | 0 | Atlantic Ocean, in tandem with Dränger and Stürmer, vs convoys ONS.169, ONS.170, SC.122 and HX.229. Comprised U-84, U-89, U-91, U-435, U-468, U-600, U-603, U-615, U-621, U-638, U-653, U-664 and U-758. |
| Stürmer | 11 Mar 1943 | 20 Mar 1943 | 19 | 10 | 3 | 1 | Atlantic Ocean, in tandem with Dränger and Raubgraf, vs convoys SC.122 and HX.229. Comprised U-134, U-190, U-229, U-305, U-338, U-384 (lost), U-439, U-526, U-527, U-530, U-598, U-618, U-631, U-641, U-642, U-665 and U-666. |
| Unverzagt | 12 Mar 1943 | 22 Mar 1943 | 6 | 2 | 1 | 1 | Atlantic Ocean, off the western approaches to the Strait of Gibraltar, in tandem with Tümmler and Wohlgemut, vs convoy UGS.6. Comprised U-106, U-130 (lost), U-167, U-172, U-513 and U-515. |
| Wohlgemut | 12 Mar 1943 | 22 Mar 1943 | 5 | 1 | 0 | 1 | Atlantic Ocean, in tandem with Tümmler and Unverzagt, vs convoy UGS.6. Comprised U-67, U-103, U-109, U-159 and U-524 (lost). |
| Dränger | 14 Mar 1943 | 20 Mar 1943 | 11 | 3 | 0 | 0 | Atlantic vs convoys HX.229 and SC.122, in conjunction with Raubgraf and Stürmer. Comprised U-86, U-221, U-333, U-336, U-373, U-406, U-440, U-441, U-590, U-608 and U-610. |
| Seeteufel | 21 Mar 1943 | 30 Mar 1943 | 17 | 1 | 0 | 0 | Convoy HX 230 |
| Seewolf II | 21 Mar 1943 | 30 Mar 1943 | 19 | 0 | 0 | 0 | Atlantic Ocean vs convoys SC.123 and HX.230. Comprised U-84, U-86, U-257, U-305, U-333, U-336, U-373, U-440, U-441, U-527, U-530, U-590, U-591, U-615, U-618, U-631, U-641, U-642 and U-666. |
| Seeräuber | 25 Mar 1943 | 30 Mar 1943 | 7 | 3 | 0 | 0 | Atlantic Ocean vs convoy RS-3. Comprised U-67, U-123, U-159, U-167, U-172, U-513 and U-515. |
| Eisbär | 27 Mar 1943 | 15 Apr 1943 | 12 | 0 | 0 | 1 | Northwest coast of Norway vs Allied Arctic convoys. Comprised U-212, U-251, U-255, U-269, U-302, U-354, U-355, U-378, U-467, U-625, U-639 and U-644 (lost). |
| (No name) | 27 Mar 1943 | 30 Mar 1943 | 5 | 4 | 1 | 0 | Convoy SL 126 |
| Löwenherz | 1 Apr 1943 | 10 Apr 1943 | 14 | 4 | 3 | 2 | Atlantic Ocean vs convoy HX.231. Comprised U-168, U-191, U-260, U-270, U-563, U-564, U-572, U-584, U-592, U-594, U-630, U-632 (lost), U-635 (lost) and U-706. |
| Taifun II | 2 Apr 1943 | 4 Apr 1943 | 4 | 0 | 0 | 0 | Norwegian Sea. Comprised U-255, U-582, U-629 and U-646. |
| Adler | 7 Apr 1943 | 13 Apr 1943 | 16 | 4 | 0 | 0 | Atlantic Ocean vs convoys HX.232, ON.176 and ONS.2. Comprised U-71, U-84, U-108, U-188, U-257, U-381, U-404, U-413, U-438, U-571, U-613, U-615, U-618 and U-662. |
| Lerche | 10 Apr 1943 | 16 Apr 1943 | 10 | 3 | 1 | 0 | North Atlantic Ocean vs convoy HX.232. Comprised U-168, U-191, U-203, U-260, U-270, U-532, U-563, U-584, U-630 and U-706. |
| Meise | 11 Apr 1943 | 27 Apr 1943 | 34 | 5 | 2 | 2 | North Atlantic Ocean vs convoys SC.126, HX.234, and ONS.4. Comprised U-71, U-84, U-108, U-134, U-188 (lost), U-191 (lost), U-192, U-203, U-209, U-257, U-258, U-267, U-306, U-378, U-381, U-404, U-413, U-415, U-438, U-531, U-532, U-552, U-571, U-598, U-610, U-613, U-618, U-631, U-648, U-662, U-706, U-732 and U-954. |
| (No Name) | 15 Apr 1943 | 18 Apr 1943 | 8 | 1 | 1 | 1 | Convoy HX 233 |
| Specht | 19 Apr 1943 | 4 May 1943 | 24 | 1 | 0 | 1 | Atlantic Ocean, in tandem with Amsel I, Amsel II, Fink and Star, vs convoys SC.127, SC.128 and ONS.5. Comprised U-84, U-92, U-108, U-125 (lost), U-168, U-203, U-226, U-257, U-260, U-264, U-270, U-358, U-404, U-438, U-514, U-584, U-614, U-618, U-628, U-630, U-662, U-706, U-707 and U-732. Sank the British Lorient (ONS.5). |
| Amsel | 22 Apr 1943 | 3 May 1943 | 16 | 0 | 0 | 0 | Atlantic Ocean vs convoys SC.127 and HX.235. Comprised U-186, U-223, U-266, U-267, U-359, U-377, U-383, U-403, U-448, U-366, U-454, U-466, U-468, U-514, U-525, U-634 and U-709. |
| Star | 27 Apr 1943 | 4 May 1943 | 16 | 1 | 0 | 0 | Atlantic Ocean, in tandem with Specht, vs convoy ONS.5. Comprised U-192, U-209, U-231, U-258, U-378, U-381, U-386, U-413, U-528, U-531, U-532, U-533, U-552, U-648, U-650 and U-954. |
| Drossel | 29 Apr 1943 | 15 May 1943 | 13 | 4 | 0 | 7 | Atlantic Ocean vs convoys SL.128 and HX.237. Comprised U-89 (lost), U-221, U-230, U-332 (lost), U-406, U-436, U-439 (lost), U-447 (lost), U-456 (lost), U-600, U-607, U-659 (lost) and U-753 (lost). |
| Amsel 1 | 3 May 1943 | 6 May 1943 | 6 | 1 | 0 | 1 | Atlantic Ocean vs convoy ONS.5. Comprised U-267, U-402, U-504, U-575, U-621 and U-638 (lost). Sank the British Dolius. |
| Amsel 2 | 3 May 1943 | 6 May 1943 | 6 | 3 | 0 | 0 | Atlantic Ocean vs convoy ONS.5. Comprised U-107, U-223, U-266, U-377, U-383 and U-634. |
| Amsel 3 | 3 May 1943 | 6 May 1943 | 6 | 0 | 0 | 0 | Atlantic Ocean. Comprised U-448, U-468, U-525, U-569, U-709 and U-752. |
| Amsel 4 | 3 May 1943 | 6 May 1943 | 6 | 0 | 0 | 0 | Atlantic Ocean. Comprised U-103, U-186, U-359, U-403, U-454 and U-466. |
| Fink | 4 May 1943 | 6 May 1943 | 28 | 8 | 0 | 5 | Atlantic Ocean vs convoys ONS.5 and SC.128, in tandem with the Amsel I, Amsel II, Specht and Star wolfpacks. Comprised U-125 (lost), U-168, U-192 (lost), U-209, U-226, U-231, U-260, U-264, U-270, U-358, U-378, U-381, U-413, U-438 (lost), U-514, U-531 (lost), U-533, U-552, U-584, U-614, U-628, U-630 (lost), U-648, U-650, U-662, U-707, U-732 and U-954. |
| Aufnahme | 7 Mar 1942 | 11 Mar 1942 | 4 | 0 | 0 | 0 | Arctic Ocean off Norway. Comprised U-377, U-403, U-454 and U-589. |
| (No Name) | 5 May 1943 | 10 May 1943 | 9 | 0 | 0 | 0 | |
| Elbe | 7 May 1943 | 10 May 1943 | 16 | 0 | 0 | 0 | North Atlantic Ocean. Comprised U-107, U-223, U-231, U-266, U-267, U-377, U-383, U-402, U-504, U-514, U-575, U-584, U-614, U-621, U-634 and U-650. |
| Rhein | 7 May 1943 | 10 May 1943 | 12 | 0 | 0 | 0 | Atlantic Ocean vs convoy HX.237. Formed from the Amsel I and Amsel II packs, comprised U-103, U-186, U-359, U-403, U-448, U-454, U-466, U-468, U-525, U-569, U-709 and U-752. |
| Elbe 1 | 10 May 1943 | 14 May 1943 | 13 | 0 | 0 | 0 | Central North Atlantic Ocean vs convoy HX.237. Comprised U-231, U-267, U-468, U-514, U-525, U-569, U-575, U-584, U-614, U-650, U-709 and U-752. |
| Elbe 2 | 10 May 1943 | 14 May 1943 | 13 | 2 | 0 | 1 | North Atlantic Ocean vs convoy SC.129. Comprised U-103, U-107, U-186 (lost), U-223, U-359, U-377, U-383, U-402, U-448, U-454, U-466, U-504 and U-621. |
| Isar | 10 May 1943 | 15 May 1943 | 4 | 0 | 0 | 0 | North Atlantic Ocean, in tandem with the Inn wolfpack, vs convoy ONS.7. Comprised U-304, U-418, U-645 and U-952. On 15 May the Isar, Inn and Nahe wolfpacks combined to create the two Donau wolfpacks. |
| Nahe | ?? May 1943 | ?? May 1943 | ? | ? | ? | ? | Unrealised wolfpack in the Atlantic. Absorbed into the Donau I and Donau II wolfpacks. |
| Lech | 10 May 1943 | 15 May 1943 | 3 | 0 | 0 | 0 | Atlantic Ocean, in tandem with Isar and Inn, vs convoy ONS.7. Comprised U-91, U-202 and U-664. Broken up for incorporation in the Donau wolfpacks. |
| Inn | 11 May 1943 | 15 May 1943 | 4 | 0 | 0 | 0 | Atlantic Ocean, in tandem with Isar vs convoy ONS.7. Comprised U-92, U-258, U-381 and U-954. On 15 May, Inn and Isar plus the Nahe wolfpack combined to create the two Donau wolfpacks. |
| Iller | 12 May 1943 | 15 May 1943 | 6 | 0 | 0 | 1 | Greenland/Iceland gap vs convoy SC.130. Comprised U-340, U-636, U-640 (lost), U-657, U-731 and U-760. |
| Naab | 12 May 1943 | 15 May 1943 | 7 | 0 | 0 | 0 | Atlantic Ocean. Comprised U-92, U-218, U-264, U-378, U-413, U-552 and U-707. |
| Donau 1 | 15 May 1943 | 26 May 1943 | 12 | 1 | 0 | 3 | North Atlantic Ocean vs convoys ONS.7 and SC.130. |
| Donau 2 | 15 May 1943 | 26 May 1943 | 11 | 0 | 0 | 1 | North Atlantic Ocean vs convoy SC.130. |
| Oder | 17 May 1943 | 19 May 1943 | 9 | 0 | 0 | 0 | Atlantic Ocean vs convoy HX.238. Comprised U-221, U-228, U-336, U-558, U-603, U-642, U-666 and U-752. |
| Mosel | 19 May 1943 | 24 May 1943 | 21 | 0 | 0 | 2 | Atlantic Ocean vs convoys HX.239, ON.184 and SC.130. Comprised U-218, U-221, U-228, U-231, U-264, U-305, U-336, U-378, U-468, U-552, U-558, U-569 (lost), U-575, U-603, U-607, U-621, U-641, U-642, U-650, U-666 and U-752 (lost). |
| Trutz | 1 Jun 1943 | 15 Jul 1943 | 18 | 0 | 0 | 1 | Atlantic Ocean vs convoys between the US and Gibraltar including GUS.7A. Lost U-217. |
| Trutz 1 | 16 Jun 1943 | 29 Jun 1943 | 4 | 0 | 0 | 0 | Breakup of Trutz into smaller wolfpacks, vs convoy GUS.8. Comprised U-228, U-558, U-608 and U-642. |
| Trutz 2 | 16 Jun 1943 | 29 Jun 1943 | 8 | 0 | 0 | 0 | Breakup of Trutz into smaller wolfpacks, vs convoy GUS.8. Comprised U-135, U-232, U-336, U-603, U-641, U-666, U-951 and U-953. |
| Trutz 3 | 16 Jun 1943 | 29 Jun 1943 | 4 | 0 | 0 | 0 | Breakup of Trutz into smaller wolfpacks, vs convoy GUS.8. Comprised U-193, U-211, U-221 and U-435. |
| Geier 1 | 30 Jun 1943 | 15 Jul 1943 | 4 | 0 | 0 | 0 | One of three sub-operations in Geier in the Atlantic off the Iberian peninsula using boats which had previously been part of the Trutz wolfpack. Comprised U-228, U-603, U-608 and U-641. |
| Geier 2 | 30 Jun 1943 | 15 Jul 1943 | 4 | 0 | 0 | 2 | One of three sub-operations in Geier in the Atlantic off the Iberian peninsula using boats which had previously been part of the Trutz wolfpack. Comprised U-211, U-435 (lost), U-951 (lost) and U-953. |
| Geier 3 | 30 Jun 1943 | 15 Jul 1943 | 3 | 0 | 0 | 1 | One of three sub-operations in Geier in the Atlantic off the Iberian peninsula using boats which had previously been part of the Trutz wolfpack. Comprised U-232 (lost), U-336 and U-642. |
| (No Name) | 11 Jul 1943 | 29 Jul 1943 | 6 | 0 | 0 | 0 | |
| Wiking | 1 Aug 1943 | 8 Oct 1943 | 7 | 4 | 1 | 0 | Kara Sea vs convoy VA.18. Comprised U-302, U-307, U-354, U-601, U-703, U-711 and U-960. |
| Monsun | 6 Jul 1943 | 27 Aug 1943 | ? | ? | ? | ? | Indian Ocean, by individual boats rather than a wolfpack. |
| Monsun | 30 Aug 1943 | 23 Nov 1943 | 8 | 0 | 0 | 0 | Between Norway and the Svalbard islands group against Allied Arctic convoys. Comprised U-277, U-307, U-355, U-360, U-387, U-713, U-737 and U-956. |
| Leuthen | 15 Sep 1943 | 24 Sep 1943 | 21 | 10 | 3 | 3 | Atlantic Ocean vs convoys ON.202 and ONS.18. Comprised U-229 (lost), U-238, U-260, U-270, U-274, U-305, U-338 (lost), U-341 (lost), U-377, U-378, U-386, U-402, U-413, U-422, U-584, U-641, U-645, U-666, U-731, U-758, U-952 and U-963. |
| Rossbach | 24 Sep 1943 | 9 Oct 1943 | 26 | 2 | 0 | 6 | Atlantic Ocean vs convoys ON.203, ONS.19, HX.258, ON.204, HX.259 and SC.143. Comprised U-91, U-260, U-275, U-279 (lost), U-305, U-309, U-336 (lost), U-378, U-389 (lost), U-402, U-419 (lost), U-437, U-448, U-539, U-584, U-603, U-610 (lost), U-631, U-641, U-643 (lost), U-645, U-666, U-731, U-758, U-762 and U-952. Sank the Free Polish destroyer Orkan. |
| Schlieffen | 14 Oct 1943 | 22 Oct 1943 | 18 | 0 | 0 | 5 | Atlantic Ocean vs convoys ON.206 and ONS.20. Comprised U-91, U-231, U-267, U-281, U-309, U-413, U-426, U-437, U-448, U-455, U-470 (lost), U-540 (lost), U-608, U-631 (lost), U-762, U-841 (lost), U-842 and U-844 (lost). |
| Eisenbart | 22 Oct 1943 | 5 Jan 1944 | 12 | 0 | 0 | 0 | Arctic Ocean vs convoys JW.55A, RA.55A and RA.55B. Comprised U-277, U-307, U-314, U-354, U-360, U-387, U-601, U-716 and U-957. |
| Siegfried | 22 Oct 1943 | 27 Oct 1943 | 23 | 0 | 0 | 0 | Atlantic Ocean. Comprised U-91, U-212, U-226, U-231, U-267, U-281, U-309, U-373, U-405, U-413, U-426, U-437, U-552, U-575, U-592, U-608, U-648, U-709, U-762, U-842, U-963, U-967 and U-969. |
| Schill | 25 Oct 1943 | 16 Nov 1943 | 10 | 1 | 0 | 2 | Atlantic Ocean vs convoys MKS.28, KMS.31, MKS.29A, MKS.30 and SL.139. Comprised U-228, U-262, U-306 (lost), U-333, U-358, U-466, U-707 (lost) and the anti-aircraft boats U-211, U-441 and U-953. |
| Siegfried 1 | 27 Oct 1943 | 30 Oct 1943 | 6 | 0 | 0 | 0 | First section of Siegfried vs convoy SC.145. Comprised U-212, U-231, U-405, U-608, U-967 and U-969. |
| Siegfried 2 | 27 Oct 1943 | 30 Oct 1943 | 8 | 0 | 0 | 0 | Second section of Siegfried vs convoy SC.145. Comprised U-267, U-281, U-413, U-426, U-437, U-552, U-592 and U-963. |
| Siegfried 3 | 27 Oct 1943 | 30 Oct 1943 | 6 | 0 | 0 | 0 | Third section of Siegfried vs convoy SC.145. Comprised U-226, U-373, U-575, U-648, U-709 and U-842. |
| Jahn | 30 Oct 1943 | 2 Nov 1943 | 12 | 0 | 0 | 0 | Atlantic Ocean. Comprised U-226, U-373, U-426, U-437, U-552, U-575, U-582, U-592, U-608, U-648, U-709 and U-842. |
| Körner | 30 Oct 1943 | 2 Nov 1943 | 11 | 0 | 0 | 0 | Atlantic Ocean vs convoys ON.208, HX.263 and ONS.21. Comprised U-212, U-231, U-267, U-280, U-281, U-413, U-714, U-843, U-963, U-967 and U-969. |
| Tirpitz 1 | 2 Nov 1943 | 8 Nov 1943 | 4 | 0 | 0 | 0 | Part of a five-part wolfpack in the Atlantic Ocean vs convoy HX.264. |
| Tirpitz 2 | 2 Nov 1943 | 8 Nov 1943 | 5 | 0 | 0 | 0 | Part of a five-part wolfpack in the Atlantic Ocean vs convoy HX.264. |
| Tirpitz 3 | 2 Nov 1943 | 8 Nov 1943 | 5 | 0 | 0 | 0 | Part of a five-part wolfpack in the Atlantic Ocean vs convoy HX.264. |
| Tirpitz 4 | 2 Nov 1943 | 8 Nov 1943 | 4 | 0 | 0 | 1 | Part of a five-part wolfpack in the Atlantic Ocean vs convoy HX.264. |
| Tirpitz 5 | 2 Nov 1943 | 8 Nov 1943 | 3 | 0 | 0 | 1 | Part of a five-part wolfpack in the Atlantic Ocean vs convoy HX.264. |
| Eisenhart 1 | 9 Nov 1943 | 15 Nov 1943 | 3 | 0 | 0 | 0 | One of ten sub-operations in Eisenhart in the North Atlantic vs convoys HX.264, SC.146 and HX.265. |
| Eisenhart 2 | 9 Nov 1943 | 15 Nov 1943 | 3 | 0 | 0 | 0 | One of ten sub-operations in Eisenhart in the North Atlantic vs convoys HX.264, SC.146 and HX.265. |
| Eisenhart 3 | 9 Nov 1943 | 15 Nov 1943 | 3 | 0 | 0 | 0 | One of ten sub-operations in Eisenhart in the North Atlantic vs convoys HX.264, SC.146 and HX.265. |
| Eisenhart 4 | 9 Nov 1943 | 15 Nov 1943 | 3 | 0 | 0 | 0 | One of ten sub-operations in Eisenhart in the North Atlantic vs convoys HX.264, SC.146 and HX.265. |
| Eisenhart 5 | 9 Nov 1943 | 15 Nov 1943 | 3 | 0 | 0 | 0 | One of ten sub-operations in Eisenhart in the North Atlantic vs convoys HX.264, SC.146 and HX.265. |
| Eisenhart 6 | 9 Nov 1943 | 13 Nov 1943 | 1 | 0 | 0 | 0 | One of ten sub-operations in Eisenhart in the North Atlantic vs convoys HX.264, SC.146 and HX.265. |
| Eisenhart 7 | 9 Nov 1943 | 15 Nov 1943 | 3 | 0 | 0 | 0 | One of ten sub-operations in Eisenhart in the North Atlantic vs convoys HX.264, SC.146 and HX.265. |
| Eisenhart 8 | 9 Nov 1943 | 11 Nov 1943 | 4 | 0 | 0 | 0 | One of ten sub-operations in Eisenhart in the North Atlantic vs convoys HX.264, SC.146 and HX.265. |
| Eisenhart 9 | 9 Nov 1943 | 11 Nov 1943 | 3 | 0 | 0 | 0 | One of ten sub-operations in Eisenhart in the North Atlantic vs convoys HX.264, SC.146 and HX.265. |
| Eisenhart 10 | 9 Nov 1943 | 10 Nov 1943 | 1 | 0 | 0 | 0 | One of ten sub-operations in Eisenhart in the North Atlantic vs convoys HX.264, SC.146 and HX.265. |
| Schill 1 | 16 Nov 1943 | 22 Nov 1943 | 8 | 1 | 0 | 1 | Part of a three-part wolfpack operation in the Atlantic Ocean vs MKS.30. Comprised U-211 (lost), U-228, U-262, U-333, U-358, U-426, U-515 and U-600. Damaged beyond repair the British sloop HMS Chanticleer (U-515). |
| Schill 2 | 17 Nov 1943 | 22 Nov 1943 | 9 | 0 | 0 | 1 | Part of a three-part wolfpack operation in the Atlantic Ocean. Comprised U-86, U-238, U-343, U-536 (lost), U-582, U-608, U-648, U-709 and U-969. |
| Schill 3 | 18 Nov 1943 | 22 Nov 1943 | 9 | 0 | 0 | 0 | Part of a three-part wolfpack operation in the Atlantic Ocean. Comprised U-212, U-391, U-424, U-542, U-618, U-714, U-764, U-843 and U-967. |
| Weddigen | 22 Nov 1943 | 7 Dec 1943 | 17 | 0 | 0 | 4 | Atlantic Ocean vs convoys KMS.30, OS.59, MKS.31, SL.140, KMS.34 and OS.60. Comprised the remaining boats of the Schill wolfpack, U-86 (lost), U-107, U-228, U-238, U-262, U-358, U-391, U-424, U-542 (lost), U-582, U-600 (lost), U-618, U-648 (lost), U-714, U-764, U-843 and U-969. |
| Coronel | 4 Dec 1943 | 8 Dec 1943 | 19 | 0 | 0 | 0 | North Atlantic Ocean vs convoys ONS.24, HX.268 and ON.214. Comprised U-92, U-107, U-269, U-311, U-415, U-421, U-541, U-543, U-544, U-618, U-625, U-629, U-653, U-667, U-672, U-734, U-761, U-801 and U-962. |
| Coronel 1 | 8 Dec 1943 | 17 Dec 1943 | 19 | 0 | 0 | 1 | North Atlantic Ocean. Comprised U-92, U-284, U-311, U-364, U-392, U-421, U-471, U-544, U-625, U-629, U-653, U-672, U-741, U-744, U-761, U-960, U-972 (lost), U-976 and U-981. |
| Coronel 2 | 8 Dec 1943 | 17 Dec 1943 | 21 | 0 | 0 | 1 | North Atlantic Ocean. Comprised U-92, U-107, U-302, U-311, U-390, U-415, U-421, U-541, U-543, U-544, U-618, U-625, U-629, U-645 (lost), U-653, U-667, U-672, U-734, U-761, U-801 and U-962. |
| Coronel 3 | 14 Dec 1943 | 17 Dec 1943 | 9 | 0 | 0 | 0 | North Atlantic Ocean. Comprised U-107, U-415, U-541, U-543, U-618, U-645 (lost), U-667, U-801 and U-962. |
| Amrum | 18 Dec 1943 | 23 Dec 1943 | 6 | 0 | 0 | 0 | Atlantic Ocean vs various ON, HX and SC convoys. Comprised U-302, U-311, U-392, U-629, U-960 and U-976. |
| Borkum | 18 Dec 1943 | 3 Jan 1944 | 17 | 2 | 0 | 1 | Atlantic Ocean vs convoys MKS.33/SL.142, OS.62/KMS.36 and MKS.34/SL.143 pairs. Comprised U-107, U-231, U-270, U-275, U-305, U-377, U-382, U-415, U-541, U-618, U-641, U-645 (lost), U-667, U-758, U-801, U-953 and U-962. Sank two destroyers, the British HMS Hurricane (U-415) and US USS Leary (U-275). |
| Föhr | 18 Dec 1943 | 23 Dec 1943 | 6 | 0 | 0 | 0 | Atlantic vs ON, HX and SC-series convoys. Comprised U-92, U-421, U-544, U-625, U-653 and U-672. |
| Sylt | 18 Dec 1943 | 23 Dec 1943 | 6 | 0 | 0 | 0 | Atlantic Ocean against several ON, HX and SC convoys. Comprised U-364, U-471, U-741, U-744, U-972 and U-981. The Sylt wolfpack's boats were divided, together with those of the Amrum and Föhr wolfpacks, into the six elements of the Rügen wolfpack. |
| Rügen 1 | 23 Dec 1943 | 7 Jan 1944 | 8 | 1 | 1 | 0 | Part of a seven-part wolfpack operation in the Atlantic Ocean vs convoy ON.217. Comprised U-364, U-545, U-547, U-741, U-744, U-762, U-972 and U-981. |
| Rügen 2 | 23 Dec 1943 | 7 Jan 1944 | 6 | 0 | 0 | 1 | Part of a seven-part wolfpack operation in the Atlantic Ocean. Comprised U-364, U-545, U-741, U-744, U-762, U-972 (lost) and U-981. |
| Rügen 3 | 23 Dec 1943 | 7 Jan 1944 | 8 | 0 | 0 | 0 | Part of a seven-part wolfpack operation in the Atlantic Ocean. Comprised U-302, U-390, U-392, U-471, U-763, U-846 and U-960. |
| Rügen 4 | 23 Dec 1943 | 7 Jan 1944 | 9 | 0 | 0 | 0 | Part of a seven-part wolfpack operation in the Atlantic Ocean. Comprised U-92, U-302, U-311, U-392, U-471, U-846, U-960 and U-976. |
| Rügen 5 | 23 Dec 1943 | 7 Jan 1944 | 9 | 0 | 0 | 0 | Part of a seven-part wolfpack operation in the Atlantic Ocean. Comprised U-92, U-260, U-311, U-672, U-757, U-846 and U-976. |
| Rügen 6 | 23 Dec 1943 | 7 Jan 1944 | 11 | 0 | 0 | 0 | Part of a seven-part wolfpack operation in the Atlantic Ocean. Comprised U-260, U-309, U-421, U-544, U-625, U-653, U-666, U-672, U-731 and U-976. |
| Hela | 28 Dec 1943 | 1 Jan 1944 | 4 | 0 | 0 | 0 | Southwestern approaches to the UK. Comprised U-421, U-505, U-618 and U-666. |
| Rügen 7 | 28 Dec 1943 | 2 Jan 1944 | 3 | 0 | 0 | 0 | Part of a seven-part wolfpack operation in the Atlantic Ocean. Comprised U-309, U-653 and U-731. |
| Isegrim | 1 Jan 1944 | 27 Jan 1944 | 15 | 3 | 2 | 0 | Arctic Ocean vs convoys JW.56A and JW.56B. Comprised U-278, U-312, U-314, U-360, U-425, U-472, U-601, U-636, U-716, U-737, U-739, U-956, U-957 and U-965. Damaged the British destroyer HMS Obdurate (U-360). |
| Borkum 1 | 3 Jan 1944 | 13 Jan 1944 | 3 | 1 | 0 | 0 | West of the Iberian peninsula vs convoys MKS.35 and SL.144. Comprised U-270, U-305 and U-382. Sank the British frigate HMS Tweed (U-305). |
| Borkum 2 | 3 Jan 1944 | 13 Jan 1944 | 2 | 0 | 0 | 0 | West of the Iberian peninsula. Comprised U-641 and U-758. |
| Borkum 3 | 3 Jan 1944 | 13 Jan 1944 | 3 | 0 | 0 | 1 | West of the Iberian peninsula. Comprised U-231 (lost), U-377 and U-953. |
| Rügen | 7 Jan 1944 | 26 Jan 1944 | 31 | 0 | 0 | 4 | Atlantic Ocean vs convoys TU.5 and ON.215. Survivors of seven individually numbered and smaller Rügen groups were assembled into this larger group; comprised U-92, U-212, U-260, U-271, U-281, U-302, U-305 (lost), U-309, U-311, U-364, U-377 (lost), U-382, U-390, U-392, U-406, U-471, U-545, U-547, U-571, U-592, U-641 (lost), U-650, U-666, U-731, U-741, U-757 (lost), U-762, U-846, U-976, U-981 and U-984. |
| Hinein | 26 Jan 1944 | 3 Feb 1944 | 8 | 0 | 0 | 2 | Atlantic vs convoy ON.221. Comprised U-212, U-271 (lost), U-281, U-441, U-571 (lost), U-592, U-650 and U-764. |
| Stürmer | 26 Jan 1944 | 3 Feb 1944 | 13 | 0 | 0 | 0 | Atlantic Ocean vs convoys OS.66 and KMS.40. Comprised U-283, U-309, U-386, U-390, U-406, U-545, U-547, U-666, U-731, U-762, U-984, U-985 and U-989. |
| Werwolf | 27 Jan 1944 | 28 Feb 1944 | 21 | 2 | 0 | 1 | Norwegian Sea vs convoys JW.56B, JW.57 and RA.56. Comprised U-278, U-312, U-313, U-314 (lost), U-362, U-425, U-472, U-601, U-674, U-713, U-716, U-737, U-739, U-956, U-957, U-965, U-973 and U-990. Sank the British destroyers HMS Hardy (U-278) and HMS Mahratta (U-990). |
| Igel | 3 Feb 1944 | 17 Feb 1944 | 15 | 1 | 0 | 3 | Double operation in the North Atlantic vs convoys MKS.38, SL.147, UC.12, ON.223, HX.277, OS.67, KMS.41, ONS.29, ON.224, OS.68 and KMS.42. |
| Hai 1 | 17 Feb 1944 | 22 Feb 1944 | 16 | 1 | 0 | 3 | Atlantic Ocean vs convoys HX.278 and ON.224. Comprised U-91, U-212, U-256, U-264 (lost), U-386 (lost), U-406 (lost), U-437, U-441, U-546, U-549, U-603, U-608, U-709, U-764, U-985 and U-989. Sank the British sloop HMS Woodpecker (U-256). |
| Hai 2 | 17 Feb 1944 | 22 Feb 1944 | 3 | 0 | 0 | 0 | Atlantic Ocean. Comprised U-281, U-650 and U-963. |
| Preussen | 22 Feb 1944 | 22 Mar 1944 | 31 | 5 | 1 | 8 | Atlantic Ocean vs convoys SC.153, SL.150, MKS.41, CU.16, SL.154, HX.281 and ON.227. Comprised U-91 (lost), U-92, U-212, U-255, U-256, U-262, U-267, U-281, U-302, U-311, U-358 (lost), U-415, U-437, U-441, U-448, U-549, U-575 (lost), U-603 (lost), U-608, U-625 (lost), U-653 (lost), U-667, U-672, U-709 (lost), U-741, U-744, U-764 (lost), U-962, U-963, U-985 and U-986. Sank the British frigate HMS Gould (U-358), British LST-362, US destroyer escort USS Leopold (U-255) and British corvette HMS Asphodel (U-575); damaged the British LST-324. |
| Hartmut | 23 Feb 1944 | 28 Feb 1944 | 4 | 0 | 0 | 0 | Norwegian Sea vs convoy JW.57. Comprised U-315, U-366, U-472 and U-673. |
| Boreas | 28 Feb 1944 | 10 Mar 1944 | 12 | 0 | 0 | 2 | |
| Orkan | 5 Mar 1944 | 10 Mar 1944 | 4 | 0 | 0 | 1 | Norwegian Sea. Comprised U-288, U-366 (lost), U-674 and U-990. |
| Taifun | 5 Mar 1944 | 10 Mar 1944 | 4 | 0 | 0 | 1 | Norwegian Sea. Comprised U-278, U-737 and U-973 (lost). |
| Hammer | 10 Mar 1944 | 5 Apr 1944 | 5 | 0 | 0 | 1 | Versus convoy JW.58. Comprised U-288 (lost), U-354, U-674, U-968 and U-990. |
| Thor | 10 Mar 1944 | 5 Apr 1944 | 6 | 0 | 0 | 0 | Norwegian Sea vs convoy JW.58. Comprised U-278, U-307, U-312, U-313, U-361 and U-959. |
| Blitz | 24 Mar 1944 | 5 Apr 1944 | 9 | 0 | 0 | 2 | Arctic Ocean vs convoy JW.58. Comprised U-277, U-288, U-315, U-355 (lost), U-360 (lost), U-361, U-711, U-956 and U-990. |
| Donner | 5 Apr 1944 | 20 Apr 1944 | 9 | 0 | 0 | 0 | |
| Keil | 5 Apr 1944 | 20 Apr 1944 | 5 | 1 | 0 | 0 | Norwegian Sea vs convoys RA.58 and RA.59. Comprised U-315, U-361, U-711, U-716 and U-739. |
Donner
Keil | 20 Apr 1944 | 3 May 1944 | 14 | 1 | 0 | 2 | Northwest Norway vs convoy RA.59. Donner comprised U-277 (lost), U-307, U-312, U-315, U-354, U-362, U-636 and U-703. Kiel comprised U-278, U-313, U-361, U-387, U-674 (lost), U-711 and U-739. |
| Trutz | 3 May 1944 | 10 Jul 1944 | 26 | 0 | 0 | 1 | |
| Dragoner | 21 May 1944 | 28 May 1944 | 6 | 0 | 0 | 0 | |
| Grimm | 31 May 1944 | 6 Jun 1944 | 10 | 0 | 0 | 0 | Area of Norway, Iceland and Spitsbergen. Comprised U-307, U-313, U-315, U-347, U-362, U-387, U-668, U-711, U-742 and U-997. |
| Greif | 3 Aug 1944 | 26 Sep 1944 | 6 | 5 | 0 | 1 | Kara Sea vs convoys BD.5 and VD.1. Comprised U-278, U-362 (lost), U-365, U-711, U-739 and U-957. |
| Trutz | 17 Aug 1944 | 6 Sep 1944 | 7 | 3 | 0 | 3 | Arctic Ocean vs convoy JW.59. Comprised U-344 (lost), U-354, U-363, U-395, U-668, U-703 and U-997. Damaged the British escort carrier HMS Nabob (U-354), sank the British sloop HMS Kite (U-344) and the frigate HMS Bickerton (U-354). |
| Dachs | 31 Aug 1944 | 5 Sep 1944 | 6 | 0 | 0 | 0 | |
| Grimm | 9 Sep 1944 | 2 Oct 1944 | 17 | 0 | 0 | 1 | Arctic Ocean. Comprised U-293, U-310, U-312, U-315, U-363, U-365, U-387, U-425, U-636, U-668, U-737, U-921 (lost), U-956, U-965, U-968, U-992 and U-997. |
| Feuer | 17 Sep 1944 | 19 Sep 1944 | 4 | 0 | 0 | 0 | Southwest coast of Norway. Comprised U-293, U-310, U-387 and U-737. |
| Schwefel | 22 Sep 1944 | 25 Sep 1944 | 3 | 0 | 0 | 0 | Arctic Ocean. Comprised U-313, U-668 and U-965. |
| Zorn | 26 Sep 1944 | 2 Oct 1944 | 13 | 2 | 0 | 0 | Norwegian Sea vs convoy RA.60. Comprised U-293, U-310, U-315, U-363, U-365, U-387, U-636, U-668, U-771, U-965, U-968, U-992 and U-995. |
| Regenschirm | 14 Oct 1944 | 16 Oct 1944 | 4 | 0 | 0 | 0 | Off the northwest coast of Norway. Comprised U-293, U-310, U-771 and U-997. |
| Panther | 16 Oct 1944 | 10 Nov 1944 | 21 | 0 | 1 | 0 | Norwegian Sea vs convoys RA.61 and JW.61. Comprised U-293, U-295, U-310, U-312, U-315, U-363, U-365, U-387, U-425, U-636, U-668, U-737, U-771, U-956, U-965, U-968, U-992, U-995, U-997 and U-1163. Damaged the British frigate HMS Mounsey (U-295). |
| Grube | Nov 1944 | Dec 1944 | 7 | 0 | 0 | 0 | Arctic Ocean vs convoy JW.62 supported by Operation Golden. Comprised U-295, U-310, U-387, U-668, U-965, U-997 and U-1163. |
| Stock | 27 Nov 1944 | 14 Dec 1944 | 10 | ? | ? | 0 | Arctic Ocean, in the area to the west of Bjørnøya and in tandem with Grube, vs convoy JW.62 supported by Operation Golden. Comprised U-286, U-293, U-299, U-313, U-315, U-318, U-363, U-365, U-995 and U-992. |
| Stier | 21 Nov 1944 | 8 Jan 1945 | 18 | 7 | 1 | 2 | vs convoys KB.35, RA.62, KB.37 and KP.24. |
| Stier | 30 Dec 1944 | 21 Jan 1945 | 7 | 0 | 0 | 0 | Arctic Ocean vs convoy JW.63. Comprised U-299, U-956, U-995 and U-997 deployed in the Bjørnøya Passage, and U-293, U-310 and U-636 deployed off the mouth of the Kola inlet. |
| Rasmus | 6 Feb 1945 | 13 Feb 1945 | 8 | 0 | 0 | 0 | Arctic Ocean vs convoys JW.64 and BK.3. Comprised U-286, U-293, U-307, U-318, U-425, U-636, U-711, U-716, U-739, U-968, U-992 and U-995. |
| Hagen | 13 Mar 1945 | 21 Mar 1945 | 13 | 3 | 0 | 0 | Arctic Ocean vs convoys JW.65 and RA.65 of Operation Scottish. Comprised U-307, U-310, U-312, U-313, U-318, U-363, U-668, U-711, U-716, U-968, U-992, U-995 and U-997. |
| Seewolf III | 14 Apr 1945 | 1 May 1945 | 6 | 1 | 0 | 4 | Atlantic Ocean. Operation Teardrop. Comprised U-518 (lost), U-546 (lost), U-805, U-858, U-880 (lost) and U-1235 (lost). Sank the US destroyer escort USS Frederick C. Davis (U-546). |
| Faust | 16 Apr 1945 | 1 May 1945 | 9 | 1 | 0 | 2 | Arctic Ocean vs convoy JW.66 as part of Operation Roundel. Comprised U-278, U-286 (lost), U-295, U-307 (lost), U-312, U-313, U-363, U-427 and U-481. Sank the British frigate HMS Goodall (U-286). |
