Patrol info for U-3
| Departure | Arrival / Fate | Duration | ||
| 12 Apr 1940 | Wilhelmshaven | 19 Apr 1940 | Wilhelmshaven | 8 days |
Commander | Officers * |
 Kptlt. Gerd Schreiber |
Formed U-boat group 8 (Lindesnes) together with U-2, U-5 and U-6 for Operation Weseruebung, the German invasion of Denmark and Norway. The boat returned to port shortly after the departure to repair the periscope and left again on 13 April.
Daily positions, sinkings and allied attacks during the patrol of U-3
We have daily positions for all 8 days on this patrol.
Departure from Wilhelmshaven on 12 Apr 1940.
13 Apr 1940 - 14 Apr 1940 - 15 Apr 1940 - 16 Apr 1940 - 17 Apr 1940 - 18 Apr 1940 -
Arrival at Wilhelmshaven on 19 Apr 1940.
Ships hit by U-3 during this patrol
General Events during this patrol
We have no events listed for this patrol.
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Attacks on U-3 during this patrol
16 Apr 1940
The British submarine HMS Porpoise fired six torpedoes at U-3 about 10 miles southwest of Egersund, Norway and heard a detonation, which was in fact a G7a torpedo fired at HMS Porpoise by the U-boat which had missed and detonated at the end of its run.
It was believed for many years that Porpoise had sunk U-1. U-3 escaped unscathed.
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-3
* These are officers that later became commanders themselves.