Patrol info for U-621
| Departure | Arrival / Fate | Duration | ||
| 22 Apr 1943 | Brest | 3 Jun 1943 | Brest | 43 days |
Commander | Officers * |
 Oblt. Max Kruschka |
1WO Ltn. Ulrich Hammer |
Daily positions, sinkings and allied attacks during the patrol of U-621
We have daily positions for all 43 days on this patrol.
Departure from Brest on 22 Apr 1943.
23 Apr 1943 - 24 Apr 1943 - 25 Apr 1943 - 26 Apr 1943 - 27 Apr 1943 - 28 Apr 1943 - 29 Apr 1943 - 30 Apr 1943 - 1 May 1943 - 2 May 1943 - 3 May 1943 - 4 May 1943 - 5 May 1943 - 6 May 1943 - 7 May 1943 - 8 May 1943 - 9 May 1943 - 10 May 1943 - 11 May 1943 - 12 May 1943 - 13 May 1943 - 14 May 1943 - 15 May 1943 - 16 May 1943 - 17 May 1943 - 18 May 1943 - 19 May 1943 - 20 May 1943 - 21 May 1943 - 22 May 1943 - 23 May 1943 - 24 May 1943 - 25 May 1943 - 26 May 1943 - 27 May 1943 - 28 May 1943 - 29 May 1943 - 30 May 1943 - 31 May 1943 - 1 Jun 1943 - 2 Jun 1943 -
Arrival at Brest on 3 Jun 1943.
Wolfpack operations during this patrol
U-621 operated with the following Wolfpacks during this patrol
Amsel 1 (3 May 1943 - 6 May 1943)
Elbe (7 May 1943 - 10 May 1943)
Elbe 2 (10 May 1943 - 14 May 1943)
Mosel (19 May 1943 - 24 May 1943)
Ships hit by U-621 during this patrol
General Events during this patrol
We have no events listed for this patrol.
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Attacks on U-621 during this patrol
31 May 1943
18.42 hrs, mid Atlantic: While searching for survivors from U-563 sunk nearby, the inbound U-621 was herself attacked by a British B-24 Liberator (224 Sqn RAF/Q, pilot Robert V. Sweeny). The aircraft dropped 12 depth charges over two runs, causing severe damage to the boat. (Sources: Norman Franks)
About this data
If you believe we have missed an attack on a German U-boat in this listing please let us know.
See all patrols for U-621
* These are officers that later became commanders themselves.