Patrols by U-1228
See the profile page for U-1228
| Commander | Departure | Arrival | Days | Tons | |||||
| Oblt. Friedrich-Wilhelm Marienfeld | 5 Sep 1944 | Kiel | 10 Sep 1944 | Horten | 6 days | ||||
| Oblt. Friedrich-Wilhelm Marienfeld | 11 Sep 1944 | Horten | 15 Sep 1944 | Bergen | 5 days | ||||
| Oblt. Friedrich-Wilhelm Marienfeld | 17 Sep 1944 | Bergen | 20 Sep 1944 | Bergen | 4 days | ||||
| 1 | Oblt. Friedrich-Wilhelm Marienfeld | 12 Oct 1944 | Bergen | 29 Dec 1944 | Stavanger | 79 days | 900 | P | View |
| Oblt. Friedrich-Wilhelm Marienfeld | 31 Dec 1944 | Stavanger | 4 Jan 1945 | Flensburg | 5 days | ||||
| Oblt. Friedrich-Wilhelm Marienfeld | 1 Apr 1945 | Kiel | 3 Apr 1945 | Horten | 3 days | ||||
| Oblt. Friedrich-Wilhelm Marienfeld | 9 Apr 1945 | Horten | 11 Apr 1945 | Kristiansand | 3 days | ||||
| 2 | Oblt. Friedrich-Wilhelm Marienfeld | 14 Apr 1945 | Kristiansand | 13 May 1945 | Portsmouth, USA | 30 days | P | View | |
| 109 days | 900 | ||||||||
2 War patrols (P) located. 109 days at sea during patrols (135 days at sea overall). War patrols are shown with grey background. Tons indicate tonnage of ships sunk or damaged during the patrol, if any. Warships are included. | |||||||||
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