|Ordered||6 Nov 1943|
|Laid down||7 Oct 1944||F Schichau GmbH, Danzig (werk 1668)|
|Launched||14 Dec 1944|
|Commissioned||23 Jan 1945||Oblt. Willi Müller|
|Successes||No ships sunk or damaged|
Sunk 6 May, 1945 at 1839hrs in the Skagerak northeast of Skagen Horn, Denmark, in position 57.52N, 10.49E, by depth charges from a British B-24 Liberator bomber (RAF Sqdn. 86/G). 58 dead (all hands lost). (Axel Niestlé, March 1994).
Previously recorded fate
- Sunk by a British Liberator aircraft (Sqdn. 224/T) on 5 May, 1945 in position 56.06N, 11.06W. (Postwar assessment)
Notes. This attack was actually against U-1008 causing only minor damages.
Attacks on this boat and other events
5 May 1945
The attack by the British B-24 Liberator aircraft (RAF 206/T) on 5 May, 1945 in position 56.59N, 11.48E formerly credited with the loss of U-534 instead severly damaged the U-3523.
1 recorded attack 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-3523 did not suffer any casualties (we know of) until the time of her loss.