|Ordered||20 Jan 1941|
|Laid down||17 Oct 1941||Blohm & Voss, Hamburg (werk 613)|
|Launched||7 Jul 1942|
|Commissioned||27 Aug 1942||Kptlt. Max Dieterich|
|Successes||1 warship sunk, total tonnage 56 tons|
Surrendered at Stavanger, Norway on 9 May 1945.
Transferred to Loch Ryan, Scotland for Operation Deadlight.
Operation Deadlight (post-war Allied operation, info)
Attacks on this boat and other events
26 Apr 1945
Norwegian MTBs (motor torpedo boats) 711 and 723 claimed a German U-boat sunk near Utsira, Norway. This attack was in fact against U-637, which survived. The commander of U-637 shot himself after being seriously wounded in the face. The Engineering Officer brought the boat to port. Several of the crew died in action. [Kapitänleutnant Wolfgang Riekeberg] (Sources: Klart til kamp, Helge Storm Bjercke (1954). Axel Niestlé.)
1 recorded attack on this boat.
This boat was fitted with a Schnorchel underwater-breathing apparatus and sailed equipped with it in April 1945 but it was of course installed prior to that date. Read more about the Schnorchel 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-637 did not suffer any casualties (we know of) until the time of her loss.