| Born | 28 Feb, 1909 | Marnitz |
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Ranks
Decorations |
U-boat Commands
| U-24 | 22 Aug, 1940 | - | 10 Mar, 1941 | No war patrols |
| U-566 | 17 Apr, 1941 | - | 24 Jul, 1942 | 5 patrols (196 days) |
Patrol info
| U-boat | Departure | Arrival | |||||
| 1. | U-566 | 26 Jul, 1941 | Trondheim | 29 Jul, 1941 | Kirkenes | 4 days | |
| 2. | U-566 | 30 Jul, 1941 | Kirkenes | 19 Aug, 1941 | Kirkenes | Patrol, | 21 days |
| 3. | U-566 | 30 Aug, 1941 | Kirkenes | 20 Sep, 1941 | Kirkenes | Patrol, | 22 days |
| 4. | U-566 | 22 Sep, 1941 | Kirkenes | 27 Sep, 1941 | Bergen | 6 days | |
| 5. | U-566 | 29 Sep, 1941 | Bergen | 2 Oct, 1941 | Kiel | 4 days | |
| 6. | U-566 | 3 Dec, 1941 | Kiel | 4 Dec, 1941 | Kristiansand | 2 days | |
| 7. | U-566 | 9 Dec, 1941 | Kristiansand | 23 Dec, 1941 | Lorient | Patrol, | 15 days |
| 8. | U-566 | 15 Jan, 1942 | Lorient | 9 Mar, 1942 | Brest | Patrol, | 54 days |
| 9. | U-566 | 8 Apr, 1942 | Brest | 30 Jun, 1942 | Brest | Patrol, | 84 days |
| 5 patrols, 196 days at sea | |||||||
Ships hit by Dietrich Borchert
| Date | Boat | Name of ship | Tons | Nat. | Convoy | Fate * | |
| 15 Feb, 1942 | U-566 | Meropi | 4.181 |  | gr | ON-60 | |
| 1 Jun, 1942 | U-566 | Westmoreland | 8.967 |  | br | ||
| 13.148 | |||||||
* Unless otherwise noted the ships listed here were sunk. | |||||||
Decorations and ranks information is in many cases not complete. If you can help on any of those missing that would be great.