Patrol info for U-640
| Departure | Arrival / Fate | Duration | ||
| 1 May 1943 | Kiel | 14 May 1943 | Lost | 14 days |
Commander | Officers * |
 Oblt. Karl-Heinz Nagel |
Daily positions, sinkings and allied attacks during the patrol of U-640
We have daily positions for all 14 days on this patrol.
Departure from Kiel on 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 -
Sunk on 14 May 1943.
Ships hit by U-640 during this patrol
General Events during this patrol
We have no events listed for this patrol.
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Attacks on U-640 during this patrol
13 May 1943
Following an unsuccessful attack on convoy ON(S) 7, U-640 was bombed by an aircraft from Iceland, forcing the boat to dive and lose contact with the convoy. U-640 was sunk by aircraft the next day. (Sources: Blair, vol 2, page 331)
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See all patrols for U-640
* These are officers that later became commanders themselves.