List of all U-boats

U-603

Type

VIIC

 
Ordered22 May 1940
Laid down27 Feb 1941 Blohm & Voss, Hamburg (werk 579)
Launched16 Nov 1941
Commissioned2 Jan 1942Kptlt. Kurt Kölzer
Commanders
2 Jan 1942 - 12 Sep 1942  Kptlt. Kurt Kölzer
13 Sep 1942 - 2 May 1943  Oblt. Hans-Joachim Bertelsmann
3 May 1943 - 28 Jan 1944  Oblt. Rudolf Baltz
29 Jan 1944 - 1 Mar 1944  Kptlt. Hans-Joachim Bertelsmann
Career
5 patrols
2 Jan 1942-30 Nov 1942  5. Flottille (training)
1 Dec 1942-1 Mar 1944  1. Flottille (active service)
Successes4 ships sunk, total tonnage 22,406 GRT
Fate

Sunk 1 March, 1944 in the North Atlantic, in position 48.55N, 26.10W, by depth charges from the US destroyer escort USS Bronstein. 51 dead (all hands lost).

Loss position

See the 4 ships hit by U-603 - View the 5 war patrols

Wolfpack operations

U-603 operated with the following Wolfpacks during its career:
   Ritter (14 Feb 1943 - 26 Feb 1943)
   Burggraf (4 Mar 1943 - 5 Mar 1943)
   Raubgraf (7 Mar 1943 - 20 Mar 1943)
   Oder (17 May 1943 - 19 May 1943)
   Mosel (19 May 1943 - 24 May 1943)
   Trutz (1 Jun 1943 - 16 Jun 1943)
   Trutz 2 (16 Jun 1943 - 29 Jun 1943)
   Geier 1 (30 Jun 1943 - 14 Jul 1943)
   Leuthen (15 Sep 1943 - 24 Sep 1943)
   Rossbach (24 Sep 1943 - 9 Oct 1943)
   Igel 2 (15 Feb 1944 - 17 Feb 1944)
   Hai 1 (17 Feb 1944 - 22 Feb 1944)
   Preussen (22 Feb 1944 - 1 Mar 1944)

Attacks on this boat and other events

4 Dec 1942
While inbound with the captain ill the boat found a convoy, reported its position and began shadowing. The convoy escorts forced her down and dropped depth charges for 2 hours. No damage was caused, and although U-603 was denied the chance to attack, her contact reports brought in other U-boats. (Sources: Blair, vol 2, page 123)

8 Jul 1943
A British Catalina aircraft (Sqdn 202, pilot G. Powell) attacked the boat causing some damage. (Sources: Blair, vol 2, page 345)

13 Oct 1943
An Avenger aircraft from USS Card dropped a Fido homing torpedo, but the boat was not damaged.

3 recorded attacks on this boat.

Men lost from U-boats

Unlike many other U-boats, which during their service lost men due to accidents and various other causes, U-603 did not suffer any casualties (we know of) until the time of her loss.


Media links


U-Boat Operations of the Second World War - Vol 2

Wynn, Kenneth


German U-Boat Losses During World War II

Niestle, Axel


Hitler's U-boat War, Vol II

Blair, Clay


Hitler's U-boat War

Blair, Clay