|Ordered||23 Sep 1939|
|Laid down||20 Jan 1940||F Schichau GmbH, Danzig (werk 1475)|
|Launched||15 Mar 1941|
|Commissioned||21 Jun 1941||Kptlt. Wolfgang Heyda|
|Successes||No ships sunk or damaged|
Sunk on 18 December 1941 in the North Atlantic north of Madeira, in position 36.15N, 15.48W, by depth charges from the British escort destroyer HMS Blankney and the British destroyer HMS Stanley. 2 dead and 42 survivors.
Wolfpack operationsSchnorchel and see list of fitted boats.
Men lost from U-boats
Unlike many other U-boats, which during their service lost men due to accidents and various other causes, U-434 did not suffer any casualties (we know of) until the time of her loss.
We have 1 emblem entry for this boat. See the emblem page for this boat or view emblems individually below.
Coat of Arms of Lignitz