List of all U-boats




Ordered6 Nov 1943
Laid down24 Sep 1944 F Schichau GmbH, Danzig (werk 1666)
Launched3 Dec 1944
Commissioned14 Jan 1945Oblt. Günther Keller
14 Jan 1945 - 2 May 1945  Oblt. Günther Keller
No patrols
14 Jan 1945-15 Feb 1945  8. Flottille (training)
16 Feb 1945-2 May 1945  5. Flottille (training)
SuccessesNo ships sunk or damaged

Scuttled on 2 May 1945 at Travemünde. Wreck broken up.

Final location

Men lost from U-boats

Unlike many other U-boats, which during their service lost men due to accidents and various other causes, U-3521 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