Patrols by U-427
See the profile page for U-427
| Commander | Departure | Arrival | Days | |||||
| 1. | Oblt. Graf Karl-Gabriel von Gudenus | 20 Jun, 1944 | Kiel | 23 Jun, 1944 | Stavanger | 4 days | ||
| 2. | Oblt. Graf Karl-Gabriel von Gudenus | 4 Jul, 1944 | Stavanger | 6 Jul, 1944 | Trondheim | 3 days | ||
| 3. | Oblt. Graf Karl-Gabriel von Gudenus | 14 Aug, 1944 | Trondheim | 17 Aug, 1944 | Stavanger | 4 days | ||
| 4. | Oblt. Graf Karl-Gabriel von Gudenus | 25 Sep, 1944 | Stavanger | 1 Oct, 1944 | Stavanger | 7 days | P | View |
| 5. | Oblt. Graf Karl-Gabriel von Gudenus | 30 Oct, 1944 | Stavanger | 8 Nov, 1944 | Stavanger | 10 days | P | View |
| 6. | Oblt. Graf Karl-Gabriel von Gudenus | 11 Nov, 1944 | Stavanger | 14 Nov, 1944 | Trondheim | 4 days | ||
| 7. | Oblt. Graf Karl-Gabriel von Gudenus | 4 Dec, 1944 | Trondheim | 23 Feb, 1945 | Stavanger | 82 days | P | View |
| 8. | Oblt. Graf Karl-Gabriel von Gudenus | 23 Feb, 1945 | Stavanger | 24 Feb, 1945 | Bergen | 2 days | ||
| 9. | Oblt. Graf Karl-Gabriel von Gudenus | 9 Apr, 1945 | Bergen | 20 Apr, 1945 | Narvik | 12 days | P | View |
| 10. | Oblt. Graf Karl-Gabriel von Gudenus | 21 Apr, 1945 | Narvik | 2 May, 1945 | Kilbotn | 12 days | P | View |
5 War patrols (P) located. | ||||||||