Losses during the Battle of the Atlantic Losses during the Battle of the Atlantic Losses during the Battle of the Atlantic

| Month_year | Sunk_by_U_Boat | Sunk_by_aircraft | Sunk_by_warship_or_raider | Sunk_by_mines | German_submarines_lost |
|---|---|---|---|---|---|
| 39-09 Sep. `39 | 153879 | 0 | 5051 | 29537 | 2 |
| 39-10 Oct. `39 | 134807 | 0 | 32058 | 29490 | 5 |
| 39-11 Nov. `39 | 51589 | 0 | 1722 | 120958 | 1 |
| 39-12 Dec. `39 | 80881 | 2949 | 22506 | 82712 | 1 |
| 40-01 Jan. `40 | 111263 | 23693 | 0 | 77116 | 1 |
| 40-02 Feb. `40 | 169566 | 853 | 1761 | 54740 | 6 |
| 40-03 Mar. `40 | 62781 | 8694 | 0 | 35051 | 1 |
| 40-04 Apr. `40 | 32467 | 13409 | 5358 | 19799 | 5 |
| 40-05 May `40 | 55580 | 158348 | 6893 | 47716 | 1 |
| 40-06 Jun. `40 | 284113 | 105193 | 61857 | 86087 | 0 |
| 40-07 Jul. `40 | 195825 | 70193 | 80796 | 33598 | 2 |
| 40-08 Aug. `40 | 267618 | 53283 | 63350 | 11433 | 3 |