|Ordered||13 Jun 1942|
|Laid down||12 Aug 1943||Bremer Vulkan-Vegesacker Werft, Bremen-Vegesack (werk 73)|
|Launched||15 Apr 1944|
|Commissioned||31 May 1944||Oblt. Erich Müller Bethke|
|Successes||No ships sunk or damaged|
Sunk on 17 February 1945 in the Norwegian Sea north-west of Bergen, Norway, in position 61.32N, 01.36E, by depth charges from the British frigates HMS Bayntun and HMS Loch Eck. 48 dead (all hands lost).
This boat was fitted with a Schnorchel underwater-breathing apparatus and sailed equipped with it in February 1945 but it was of course installed prior to that date.
Men lost from U-boats
Unlike many other U-boats, which during their service lost men due to accidents and various other causes, U-1278 did not suffer any casualties (we know of) until the time of her loss.