List of all U-boats




Ordered25 May 1941
Laid down7 Sep 1942 Blohm & Voss, Hamburg (werk 184)
Launched12 May 1943
Commissioned17 Jun 1943Oblt. Heinz Sieder (Knights Cross)
17 Jun 1943 - 20 Aug 1944  Oblt. Heinz Sieder (Knights Cross)
5 patrols
17 Jun 1943-31 Jul 1944  5. Flottille (training)
1 Aug 1944-20 Aug 1944  9. Flottille (active service)
Successes1 ship damaged, total tonnage 7,240 GRT
3 ships a total loss, total tonnage 21,550 GRT
1 warship a total loss, total tonnage 1,300 tons

Sunk on or about 2 August 1944 in the English Channel south-west of Brighton, in position 50.03.732N, 00.32.398W, by unknown cause. 45 dead (all hands lost). (Axel Niestlé & Innes McCartney, March 2012).

Loss position

See the 5 ships hit by U-984 - View the 5 war patrols

The wreck of U-984 was located already before 2000. The boat probably arrived in its assigned operational area on or about 2 August 1944, but there is presently no plausible explanation for its loss in the wreck position.

Wolfpack operations

U-984 operated with the following Wolfpacks during its career:
   Rügen (14 Jan 1944 - 26 Jan 1944)
   Stürmer (26 Jan 1944 - 3 Feb 1944)
   Igel 1 (3 Feb 1944 - 17 Feb 1944)
   Dragoner (22 May 1944 - 27 May 1944)

Attacks on this boat and other events

8 Jun 1944
The boat was bombed by an unidentified Allied aircraft sometime between 6 June and 9 June, and returned to base 9 June. (Sources: Blair, vol 2, page 586)

1 recorded attack on this boat.

Schnorchel-fitted U-boat
This boat was fitted with a Schnorchel underwater-breathing apparatus in March 1944. Read more about the Schnorchel and see list of fitted boats.

Men lost from the boat

22 Jan 1944
A man was lost overboard in the North Atlantic. [Maschinenobergefreiter Hermann Keller]

  Related: For more info on such losses see - Men lost from U-boats -

U-boat Emblems

We have 1 emblem entry for this boat. See the emblem page for this boat or view emblems individually below.

Coat of Arms of Kufstein

Media links

U-Boat Attack Logs

Daniel Morgan and Bruce Taylor

U-Boat Operations of the Second World War - Vol 2

Wynn, Kenneth

Hitler's U-boat War, Vol II

Blair, Clay

German U-Boat Losses During World War II

Niestle, Axel