Patrol info for U-421
| Departure | Arrival / Fate | Duration | ||
| 19 Feb 1944 | Brest | 1 Apr 1944 | Toulon | 43 days |
Commander | Officers * |
 Oblt. Hans Kolbus |
Daily positions, sinkings and allied attacks during the patrol of U-421
Legend
indicates an Allied attack on the boat.
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We have daily positions for all 43 days on this patrol.
Departure from Brest on 19 Feb 1944.
20 Feb 1944 - 21 Feb 1944 - 22 Feb 1944 - 23 Feb 1944 - 24 Feb 1944 - 25 Feb 1944 - 26 Feb 1944 - 27 Feb 1944 - 28 Feb 1944 - 29 Feb 1944 - 1 Mar 1944 - 2 Mar 1944 - 3 Mar 1944 - 4 Mar 1944 - 5 Mar 1944 - 6 Mar 1944 - 7 Mar 1944 - 8 Mar 1944 - 9 Mar 1944 - 10 Mar 1944 - 11 Mar 1944 - 12 Mar 1944 - 13 Mar 1944 - 14 Mar 1944 - 15 Mar 1944 - 16 Mar 1944 - 17 Mar 1944 - 18 Mar 1944 - 19 Mar 1944 - 20 Mar 1944 - 21 Mar 1944 - 22 Mar 1944 - 23 Mar 1944 - 24 Mar 1944 - 25 Mar 1944 - 26 Mar 1944 - 27 Mar 1944 - 28 Mar 1944 - 29 Mar 1944 - 30 Mar 1944 - 31 Mar 1944 -
Arrival at Toulon on 1 Apr 1944.
Ships hit by U-421 during this patrol
No entries found.
General Events during this patrol
We have no events listed for this patrol.
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Attacks on U-421 during this patrol
2 Mar 1944
03.09 hours, off Cape St. Vincent: U-421 was attacked by a British Wellington Mk XIV aircraft (179 Sqdn RAF, pilot S/L R.G. Knott). The aircraft had located U-421 by radar and then illuminated it by Leigh Light, but the nose turret guns jammed after firing only 40 rounds. AA fire then knocked out the starboard engine, causing the six depth charges to miss, and another AA hit in the bomb bay disabled the radar. The crew had to jettison all superfluous equipment, including the damaged radar, to keep flying on one engine, and reached base after three hours. (Sources: Franks/Zimmerman)
About this data
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* These are officers that later became commanders themselves.
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