U-boat patrols

Patrol info for U-23

DepartureArrival / FateDuration
10 Oct 1943Konstanza11 Nov 1943Konstanza33 days


Officers *

Kptlt. Rolf-Birger Wahlen

Patrol description

Patrol in the Black Sea between Batumi, Sokhumi and Sochi. The boat entered Feodosia to resupply on 31 October.

Daily positions, sinkings and allied attacks during the patrol of U-23

We have 32 daily positions for the 33 days U-23 was at sea.

Ships hit by U-23 during this patrol

Date U-boat Commander Name of ship Tons Nat. ConvoyMap
15 Oct 1943U-23Rolf-Birger Wahlen TSC-486 Sovetskaja Rossija (d.)1,005sjA
23 Oct 1943U-23Rolf-Birger Wahlen Tanais372sjB

1 ship sunk (372 tons) and 1 ship damaged (1,005 tons).

(d.) means the ship was damaged.

General Events during this patrol


25 Oct 1943. In the Black Sea, U-23 took three crew from a fishing boat prisoner and then sank their boat with hand grenades.

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Attacks on U-23 during this patrol

We have no recorded attacks on U-23 duing this patrol.

If you believe we have omitted an attack on U-23 please let us know.

See all patrols for U-23

* These are officers that later became commanders themselves.

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