List of all U-boats




Ordered5 Jun 1941
Laid down4 Sep 1942 Deutsche Werft AG, Hamburg (werk 369)
Launched14 Apr 1943
Commissioned30 Jun 1943Oblt. Eberhard Zimmermann
30 Jun 1943 - 8 Feb 1945  Kptlt. Eberhard Zimmermann
Aug, 1944 - Nov, 1944  Kptlt. Günther Pfeffer
9 Feb 1945 - 19 Apr 1945  Oblt. Erich Krempl
4 patrols
30 Jun 1943-31 Mar 1944  4. Flottille (training)
1 Apr 1944-30 Sep 1944  2. Flottille (active service)
1 Oct 1944-19 Apr 1945  33. Flottille (active service)
Successes1 warship sunk, total tonnage 1,445 tons

Sunk on 19 April 1945 in the North Atlantic south-east of Halifax, in position 42.19N, 61.45W, by depth charges from the US destroyer escorts USS Reuben James and USS Buckley. 58 dead (all hands lost). (Axel Niestlé, January 1990).

Loss position

See the 1 ships hit by U-548 - View the 4 war patrols

Previously recorded fate

  • Sunk 30 April, 1945 east of Cape Hatteras, USA, in position 36.34N, 74.00W, by depth charges from the US patrol frigate USS Natchez and the destroyer escorts Coffman, Bostwick and Thomas. (Postwar assessment)
    Notes. This attack probably resulted in the loss U-879.

Attacks on this boat and other events

3 May 1944
A strange incident in which a B-24 Liberator illuminated HMS Hargood (K 582) while hunting a German U-boat at night east of Conception Bay, Newfoundland. U-548, presuming they were the intended target fired at the aircraft, which wrongly assumed the destroyer escort had done so and broke off the attack. The U-boat went unnoticed by the Allies. (Sources: Blair, vol 2, page 562)

6 May 1944
Following U-548s sinking of the Canadian frigate HMS Valleyfield off St Johns Newfoundland, other Allied escorts (after finally deducing what had happened) hunted the boat, with no success. (Sources: Blair, vol 2, page 562)

2 recorded attacks on this boat.

Schnorchel-fitted U-boat

This boat was fitted with a Schnorchel underwater-breathing apparatus and sailed equipped with it in August 1944 but it was of course installed prior to that date.

Read more about the Schnorchel and see list of fitted boats.

Men lost from the boat

30 Aug 1944
One man was missing after crash diving. [Mechanikergefreiter (A) Walter Heise]

  Related: For more info on such losses see - Men lost from U-boats -

U-boat Emblems

We have 1 emblem entry for this boat. See the emblem page for this boat or view emblems individually below.

Man inside U

Media links

U-Boat Attack Logs

Daniel Morgan and Bruce Taylor
(£ 38.25)

German U-Boat Losses During World War II

Niestle, Axel

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

Wynn, Kenneth

Hitler's U-boat War, Vol II

Blair, Clay

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