Diethelm Balke
Kapitänleutnant (Crew 37b)
No ships sunk or damaged.
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| 9 Oct 1937 | Offiziersanwärter | | 1 Apr 1939 | Fähnrich zur See | | 1 Mar 1940 | Oberfähnrich zur See | | 1 May 1940 | Leutnant zur See | | 1 Apr 1942 | Oberleutnant zur See | | 1 Jan 1945 | Kapitänleutnant |
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U-boat Commands
| U-boat | From | To | |
| U-991 | 29 Jul 1943 | 8 May 1945 | 1 patrol (73 days) |
Patrol info for Diethelm Balke
| | U-boat | Departure |
Arrival | | | |
| 1. |
U-991 |
5 Oct 1944 | Kiel |
7 Oct 1944 | Horten |
| 3 days | |
| 2. |
U-991 |
11 Oct 1944 | Horten |
12 Oct 1944 | Kristiansand |
| 2 days | |
| 3. |
U-991 |
15 Oct 1944 | Kristiansand |
26 Dec 1944 | Bergen |
Patrol 1, | 73 days | |
| 4. |
U-991 |
27 Dec 1944 | Bergen |
29 Dec 1944 | Marviken |
| 3 days | |
| 5. |
U-991 |
2 Jan 1945 | Marviken |
4 Jan 1945 | Flensburg |
| 3 days | |
| 6. |
U-991 |
20 Apr 1945 | Kiel |
27 Apr 1945 | Horten |
| 8 days | |
| 7. |
U-991 |
29 Apr 1945 | Horten |
4 May 1945 | Bergen, Norway |
| 6 days | |
Ships hit by Diethelm Balke
About ranks and decorations
Special thanks to Fernando Almeida for data on ranks and decorations.