Oberleutnant zur See (Crew 38)
1 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
|Born||28 Jun 1920||Munich|
|Died||2 Aug 1944||(24)||Bay of Biscay|
|U-984||17 Jun 1943||2 Aug 1944 (+)||5 patrols (94 days)|
Oblt. z. S.Heinz Sieder on board
Heinz Sieder began his naval career in October 1938. During his officer training he served for seven months on the battleship Scharnhorst and took part in two patrols in the Atlantic.
In April 1941 he joined the U-boat force and after four months of training he became watch officer on a school boat (probably U-46) in the 26th Flotilla.
In January 1942 he became first watch officer on the newly commissioned U-440 and was on board for four patrols. He left U-440 in April 1943 (U-440 was lost a month later) and commissioned the type VIIC U-boat U-984 in June 1943.
In January 1944 he was attached to the 9th Flotilla in Brest (France) and made some patrols in the Channel and in the Atlantic. During a patrol at the end of June 1944 he torpedoed a British destroyer and four US vessels.
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 (Niestlé, McCartney 2012).
Busch, R. and Röll, H-J. (1999). German U-boat commanders of World War II.
Niestlé, A. (1998). German U-boat losses during World War II.
Rohwer, J. (1998). Axis Submarine Successes of World War Two.
Patrol info for Heinz Sieder
|1.||U-984||30 Dec 1943||Kiel||2 Jan 1944||Egersund||4 days|
|2.||U-984||4 Jan 1944||Egersund||24 Feb 1944||Brest||Patrol 1,||52 days|
|3.||U-984||22 May 1944||Brest||27 May 1944||Brest||Patrol 2,||6 days|
|4.||U-984||6 Jun 1944||Brest||10 Jun 1944||Brest||Patrol 3,||5 days|
|5.||U-984||12 Jun 1944||Brest||19 Jun 1944||St. Peter Port||Patrol 4,||8 days|
|6.||U-984||21 Jun 1944||St. Peter Port||5 Jul 1944||Brest||Patrol 4,||15 days|
|7.||U-984||26 Jul 1944||Brest||2 Aug 1944||Sunk||Patrol 5,||8 days|
|5 patrols, 94 days at sea|
Ships hit by Heinz Sieder
|Date||U-boat||Commander||Name of ship||Tons||Nat.||Convoy|
|25 Jun 1944||U-984||Heinz Sieder||HMS Goodson (K 480) (t.)||1,300||br|
|29 Jun 1944||U-984||Heinz Sieder||Edward M. House (d.)||7,240||am||ECM-17|
|29 Jun 1944||U-984||Heinz Sieder||H.G. Blasdel (t.)||7,176||am||ECM-17|
|29 Jun 1944||U-984||Heinz Sieder||John A. Treutlen (t.)||7,198||am||ECM-17|
|29 Jun 1944||U-984||Heinz Sieder||James A. Farrell (t.)||7,176||am||ECM-17|
4 ships sunk (22,850 tons) and 1 ship damaged (7,240 tons).
About ranks and decorations
Ranks shown in italics are our database inserts based on the rank dates of his crew comrades. The officers of each crew would normally have progressed through the lower ranks at the same rate.
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