U-421
Type | VIIC | |||
| Ordered | 10 Apr, 1941 | |||
| Laid down | 20 Jan, 1942 | Danziger Werft, Danzig (werk 122) | ||
| Launched | 24 Sep, 1942 | |||
| Commissioned | 13 Jan, 1943 | Ltnt. Hans Kolbus | ||
| Commanders |
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| Career | 2 patrols | 13 Jan, 1943 - 31 Oct, 1943 8. Flottille (training) 1 Nov, 1943 - 31 Mar, 1944 9. Flottille (front boat) 1 Apr, 1944 - 29 Apr, 1944 29. Flottille (front boat) | ||
| Successes | No ships sunk or damaged | |||
| Fate | Sunk at 1200hrs on 29 April, 1944 in the Mediterranean near Toulon, France, in position 43.07N, 05.55E, by US bombs. | |||
Men lost from U-boats
Unlike many other U-boats, which during their service lost men due to accidents and various other causes, U-421 did not suffer any casualties (we know of) until the time of her loss.
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Books dealing with this subject include: |

