Patrol info for U-171
| Departure | Arrival / Fate | Duration | ||
| 17 Jun 1942 | Kiel | 9 Oct 1942 | Lost | 115 days |
Commander | Officers * |
 Kptlt. Günther Pfeffer |
2WO Ltn. Curt Hartmann |
Daily positions, sinkings and allied attacks during the patrol of U-171
Legend
means a ship hit (sunk or damaged).
indicates an Allied attack on the boat.
shows the loss of the U-boat.
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We have 89 daily positions for the 115 days U-171 was at sea.
Departure from Kiel on 17 Jun 1942.
18 Jun 1942 - 19 Jun 1942 - 20 Jun 1942 - 21 Jun 1942 - 22 Jun 1942 - 23 Jun 1942 - 24 Jun 1942 - 25 Jun 1942 - 26 Jun 1942 - 27 Jun 1942 - 28 Jun 1942 - 29 Jun 1942 - 30 Jun 1942 - 1 Jul 1942 - 2 Jul 1942 - 3 Jul 1942 - 4 Jul 1942 - 5 Jul 1942 - 6 Jul 1942 - 7 Jul 1942 - 8 Jul 1942 - 9 Jul 1942 - 10 Jul 1942 - 11 Jul 1942 - 12 Jul 1942 - 13 Jul 1942 - 14 Jul 1942 - 15 Jul 1942 - 16 Jul 1942 - 17 Jul 1942 - 18 Jul 1942 - 19 Jul 1942 - 20 Jul 1942 - 21 Jul 1942 - 22 Jul 1942 - 23 Jul 1942 - 24 Jul 1942 - 25 Jul 1942 - 26 Jul 1942 - 27 Jul 1942 - 28 Jul 1942 - 29 Jul 1942 - 30 Jul 1942 - 31 Jul 1942 - 1 Aug 1942 - 2 Aug 1942 - 3 Aug 1942 - 4 Aug 1942 - 5 Aug 1942 - 6 Aug 1942 - 7 Aug 1942 - 8 Aug 1942 - 9 Aug 1942 - 10 Aug 1942 - 11 Aug 1942 - 12 Aug 1942 - 13 Aug 1942 - 14 Aug 1942 - 15 Aug 1942 - 16 Aug 1942 - 17 Aug 1942 - 18 Aug 1942 - 19 Aug 1942 - 20 Aug 1942 - 21 Aug 1942 - 22 Aug 1942 - 23 Aug 1942 - 24 Aug 1942 - 25 Aug 1942 - 26 Aug 1942 - 27 Aug 1942 - 28 Aug 1942 - 29 Aug 1942 - 30 Aug 1942 - 31 Aug 1942 - 1 Sep 1942 - 2 Sep 1942 - 3 Sep 1942 - 4 Sep 1942 - 5 Sep 1942 - 6 Sep 1942 - 7 Sep 1942 - 8 Sep 1942 - 9 Sep 1942 - 10 Sep 1942 - 11 Sep 1942 - 12 Sep 1942 - 13 Sep 1942 - 14 Sep 1942 - 15 Sep 1942 - 16 Sep 1942 - 17 Sep 1942 - 18 Sep 1942 - 19 Sep 1942 - 20 Sep 1942 - 21 Sep 1942 - 22 Sep 1942 - 23 Sep 1942 - 24 Sep 1942 - 25 Sep 1942 - 26 Sep 1942 - 27 Sep 1942 - 28 Sep 1942 - 29 Sep 1942 - 30 Sep 1942 - 1 Oct 1942 - 2 Oct 1942 - 3 Oct 1942 - 4 Oct 1942 - 5 Oct 1942 - 6 Oct 1942 - 7 Oct 1942 - 8 Oct 1942 -
Sunk on 9 Oct 1942.
Ships hit by U-171 during this patrol
| Date | U-boat | Commander | Name of ship | Tons | Nat. | Convoy | ||
|---|---|---|---|---|---|---|---|---|
| 26 Jul 1942 | U-171 | Günther Pfeffer |  | Oaxaca | 4,351 |  | me | |
| 13 Aug 1942 | U-171 | Günther Pfeffer | R.M. Parker Jr. | 6,779 |  | am | ||
| 4 Sep 1942 | U-171 | Günther Pfeffer | | Amatlan | 6,511 | | me | |
| 17,641 | ||||||||
3 ships sunk (17,641 tons). Legend | ||||||||
General Events during this patrol
We have no events listed for this patrol.
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Attacks on U-171 during this patrol
1 Aug 1942
Attack on 1 Aug, 1942, in the Gulf of Mexico, in position 28.37N, 90.45W, by a single depth charge from a US Grumman J4F-1 aircraft (USCG V-212/Y) was credited with sinking U-166.
This may have been an attack on U-171.
(Sources: 2001-06-01, uboat.net)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-171
* These are officers that later became commanders themselves.
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