List of all U-boats




Ordered6 Nov 1943
Laid down14 Jul 1944 F Schichau GmbH, Danzig (werk 1651)
Launched28 Aug 1944
Commissioned16 Oct 1944 Kptlt. Gerhard Thäter
14 Oct 1944 - 2 May 1945  Kptlt. Gerhard Thäter
No patrols
16 Oct 1944-15 Feb 1945  8. Flottille (training)
16 Feb 1945-2 May 1945  5. Flottille (training)
SuccessesNo ships sunk or damaged

This is one of 3 type XXI boats buried in the Elbe II bunker in Hamburg.

The boats trapped there are U-2505, U-3004 and U-3506. They are lying on the surface at low tide but are not accessible to the casual observer and stationed on private property. I believe the bunker has been filled with gravel now to prevent injuries as the area is considered dangerous.

Final location

The fate below is an incorrect but a very common one in many sources.

Previously recorded fate

  • Scuttled on 2 May, 1945 at Hamburg. Wreck broken up.

Men lost from U-boats

Unlike many other U-boats, which during their service lost men due to accidents and various other causes, U-3506 did not suffer any casualties (we know of) until the time of her loss.

U-boat Emblems

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

Red heart on Black Shield

Media links

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

Wynn, Kenneth

German U-Boat Losses During World War II

Niestle, Axel

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