| U-boat | Date of entry | Notes |
| U-371 | 21 Sep, 1941 | |
| U-97 | 26 Sep, 1941 | |
| U-559 | 26 Sep, 1941 | |
| U-331 | 29 Sep, 1941 | |
| U-75 | 3 Oct, 1941 | |
| U-79 | 5 Oct, 1941 | |
| U-205 | 11 Nov, 1941 | |
| U-81 | 12 Nov, 1941 | |
| U-433 | 15 Nov, 1941 | |
| U-565 | 16 Nov, 1941 | |
| U-431 | 24 Nov, 1941 | |
| U-95 | 26 Nov, 1941 | |
| U-557 | 26 Nov, 1941 | |
| U-562 | 27 Nov, 1941 | |
| U-652 | 28 Nov, 1941 | |
| U-96 | 1 Dec, 1941 | Severely damaged in passage, retured to France. |
| U-558 | 2 Dec, 1941 | Damaged during passage, retured to France. |
| U-208 | 7 Dec, 1941 | Sunk while attempting passage |
| U-372 | 9 Dec, 1941 | |
| U-375 | 9 Dec, 1941 | |
| U-453 | 9 Dec, 1941 | |
| U-568 | 10 Dec, 1941 | |
| U-374 | 11 Dec, 1941 | |
| U-74 | 16 Dec, 1941 | |
| U-77 | 16 Dec, 1941 | |
| U-432 | 17 Dec, 1941 | Damaged while in passage, aborted. |
| U-83 | 18 Dec, 1941 | |
| U-573 | 20 Dec, 1941 | |
| U-202 | 21 Dec, 1941 | Damaged while in passage, aborted. |
| U-451 | 21 Dec, 1941 | Sunk while attempting passage. |
| U-133 | 23 Dec, 1941 | |
| U-577 | 23 Dec, 1941 |
During 1941 35 U-boats were sent towards the Straits of Gibraltar in an attempt to enter the Mediterranean. 27 of those managed to complete their passage while 3 were sunk at Gibraltar and 5 more sustained damage and had to return to their French bases.
At the end of 1941 Germany had managed to get 27 U-boats in the Mediterranean. Also, at that time they had 23 U-boat in various stages of operations as 4 (U-75, U-79, U-95 and U-557) had already been sunk, U-95 and U-557 both within a week after arrival into the region.


