U-boat patrols

Patrol info for U-103

DepartureArrival / FateDuration
18 Sep 1943Lorient19 Sep 1943Brest2 days
23 Sep 1943Brest1 Jan 1944Bergen101 days
103 days
Sometimes patrols were split into several 'legs', for resupply and other matters.


Officers *

Kptlt. Gustav-Adolf Janssen

Daily positions, sinkings and allied attacks during the patrol of U-103

We have daily positions for all 103 days on this patrol.

Ships hit by U-103 during this patrol

General Events during this patrol


19 Nov 1943. U-103 transferred a seriously ill medical case to the Portuguese ship Angola in mid Atlantic.

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Attacks on U-103 during this patrol

We have no recorded attacks on U-103 duing this patrol.

If you believe we have omitted an attack on U-103 please let us know.

Mine-laying operations during this patrol

U-103 laid mines on the following dates during this patrol:

31 Oct 194319h4720h25EV 7315Takoradi, West Africa8 TMC

See all patrols for U-103

* These are officers that later became commanders themselves.

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