Type | Sea going | |
Class | S (Type VII C) (28) | |
Laid down | 13 Aug 1942 | Danziger Werft AG, Danzig, Germany |
Launched | 11 Mar 1943 |
|
Commissioned | 26 Jun 1943 | |
End service | 10 Sep 1943 | |
Stricken | | |
Loss date | | |
Loss position | | |
History | Taken over by the Germans on 10th September 1943 after Italian armistice. Commissioned as U-428 on 26th October 1943. Scuttled in the Kaiser Wilhelm Canal on 5th May 1945. |
Fate | |
Commands
Commander | Date from | Date to | Command notes |
C.C. Athos Fraternale | 26 Jun 1943 | 9 Sep 1943 | |
Ships hit
No ships hit by this submarine.
Patrols and events
| Commander | Date | Time | Port | Arr. date | Arr. time | Arr. port | Miles | Description |
| Fraternale, Athos | 1 Jul 1943 | 0800 | Danzig | 1 Jul 1943 | 1600 | Danzig | 30 | Entered service and trials. |
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| Fraternale, Athos | 7 Jul 1943 | 0800 | Danzig | 7 Jul 1943 | 1310 | Danzig | 10 | Trials. |
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| Fraternale, Athos | 9 Jul 1943 | 0800 | Danzig | 9 Jul 1943 | 1620 | Danzig | 48 | Trials. |
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| Fraternale, Athos | 10 Jul 1943 | 0820 | Danzig | 10 Jul 1943 | 1400 | Danzig | 50 | Trials. |
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| Fraternale, Athos | 13 Jul 1943 | 1038 | Danzig | 13 Jul 1943 | 1625 | Danzig | 45 | Trials. |
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| Fraternale, Athos | 14 Jul 1943 | 0400 | Danzig | 14 Jul 1943 | Time? | Pillau | | Passage Danzig-Pillau. |
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| Fraternale, Athos | 14 Jul 1943 | Time? | Pillau | 14 Jul 1943 | 1900 | Danzig | 142 | Passage Pillau-Danzig [mileage is from 14th July]. |
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| Fraternale, Athos | 15 Jul 1943 | 0800 | Danzig | 15 Jul 1943 | 1450 | Danzig | 42 | Trials. |
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| Fraternale, Athos | 16 Jul 1943 | 1430 | Danzig | 16 Jul 1943 | 172.0 | Danzig | 18 | Trials. |
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| Fraternale, Athos | 17 Jul 1943 | 0830 | Danzig | 17 Jul 1943 | 1530 | Danzig | 50 | Gyrocompass test. |
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| Fraternale, Athos | 19 Jul 1943 | 0600 | Danzig | 19 Jul 1943 | 1822 | Danzig | 56 | Exercises. |
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| Fraternale, Athos | 20 Jul 1943 | 0800 | Danzig | 20 Jul 1943 | 1845 | Danzig | 94 | Exercises. |
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| Fraternale, Athos | 21 Jul 1943 | 0700 | Danzig | 21 Jul 1943 | 1754 | Danzig | 66 | Exercises. |
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| Fraternale, Athos | 23 Jul 1943 | 0700 | Danzig | 23 Jul 1943 | 1816 | Danzig | 52 | Exercises. |
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| Fraternale, Athos | 24 Jul 1943 | 1400 | Danzig | 25 Jul 1943 | 0840 | Rönne | 52 | Passage Danzig-Rönne and trials. |
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| Fraternale, Athos | 27 Jul 1943 | 1455 | Rönne | 28 Jul 1943 | 0914 | Danzig | 480 | Passage Rönne-Danzig and exercises [mileage is from 24th July]. |
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| Fraternale, Athos | 30 Jul 1943 | 0515 | Danzig | 30 Jul 1943 | 1722 | Danzig | 86 | Exercises. |
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| Fraternale, Athos | 31 Jul 1943 | 0700 | Danzig | 31 Jul 1943 | 1815 | Danzig | 90 | Exercises. |
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| Fraternale, Athos | 11 Aug 1943 | Date??? | Danzig | 11 Aug 1943 | Date??? | Danzig | ? | Exercises. |
| | 11 Aug 1943 | 1239 | (0) Off Danzig. | At 1239 hours, S.1 collided with S.4 while exercising. Both submarines were slightly damaged, S.1 had damage to both periscopes. C.C. Fraternale was blamed for the incident. |
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| Fraternale, Athos | 9 Sep 1943 | | Danzig | 9 Sep 1943 | | Danzig | | Seized by the Germans at the armistice. Did not carry out patrols. Scuttled on 3rd May 1945. |
20 entries. 20 total patrol entries (0 marked as war patrols) and 1 events.