|Ordered||25 Aug 1941|
|Laid down||29 Apr 1943||AG Weser, Bremen (werk 1078)|
|Launched||29 Oct 1943|
|Commissioned||3 Feb 1944||KrvKpt. Ernst Hechler|
|Successes||2 warships sunk, total tonnage 1,960 tons|
1 warship damaged, total tonnage 1,400 tons
2 ships a total loss, total tonnage 11,844 GRT
Sunk 30 March, 1945 at Bremen by US bombs.
Attacks on this boat and other events
20 Dec 1944
Having attacked a small convoy of landing ships (damaging the American destroyer escort USS Fogg) the boat was attacked by a British aircraft (Sqdn 220) but escaped and also eluded two Allied hunter-killer groups. (Sources: Blair, vol 2, page 650)
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-870 did not suffer any casualties (we know of) until the time of her loss.