List of all U-boats




Ordered24 May 1938
Laid down10 Nov 1939 AG Weser, Bremen (werk 967)
Launched25 May 1940
Commissioned19 Aug 1940Kptlt. Harald Jürst
19 Aug 1940 - 28 Nov 1940  Kptlt. Harald Jürst
1 patrol
19 Aug 1940-31 Oct 1940  2. Flottille (training)
1 Nov 1940-28 Nov 1940  2. Flottille (active service)
Successes1 ship sunk, total tonnage 8,240 GRT
1 ship damaged, total tonnage 10,516 GRT

Missing since 28 Nov 1940 north-west of Ireland in approximate position 55.30N, 08.00W. 49 dead (all hands lost). (FDS/NHB, September 1987).

Loss position

See the 2 ships hit by U-104 - View the 1 war patrol

U-104 reported for the last time on 19 Nov, 1940 from approximate position 60.30N, 02.30E. There is a possibility that she was lost to mines from minefield SN 44 which was laid on 8 Nov, 1940 northwest of Tory Island as her last reported position was very close to that field.

Previously recorded fate

  • Sunk on 21 Nov, 1940 northwest of Ireland, in position 56.28N, 14.13W, by depth charges from the British corvette HMS Rhododendron. (Postwar assessment)
    Notes. This attack was actually against U-103 inflicting no damage.

Men lost from U-boats

Unlike many other U-boats, which during their service lost men due to accidents and various other causes, U-104 did not suffer any casualties (we know of) until the time of her loss.

Media links

U-Boat Operations of the Second World War - Vol 1

Wynn, Kenneth

German U-Boat Losses During World War II

Niestle, Axel

Hitler's U-boat War

Blair, Clay

There was another U-104 in World War One
That boat was launched from its shipyard on 3 Jul 1917 and commissioned into the Imperial Navy on 12 Aug 1917. The Naval war in WWI was brought to an end with the Armistice signed on 11 Nov, 1918. Read about SM U 104 during WWI.