Patrol info for U-621
Date lookup for 31 May 1943
| Departure | Arrival / Fate | Duration | ||
| 22 Apr 1943 | Brest | 3 Jun 1943 | Brest | 43 days |
Commander | Officers * |
 Oblt. Max Kruschka |
1WO Ltn. Ulrich Hammer |
U-621's position on 31 May 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 on this date
General Events during this patrol
We have no events listed for this date.
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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)
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* These are officers that later became commanders themselves.