Career
Heinz Bielfeld joined the Reichsmarine in April 1934. From November 1938 to April 1940 he served with the Aircraft Weapons School. Between May and September 1940 he served with the Küstenfliegersgruppe 506.
From October 1940 to February 1941, Bielfeld went through U-boat training, including a stint as a supernumerary Watch Officer on U-97.
Bielfeld then went through U-boat commander sea training as Watch Officer on the school boat U-151 during February to August 1941. From August to October 1941 he went through the U-boat commander course and construction crew (Baubelehrung) before taking command of his U-703 on 16 October 1941.
Bielfeld would then take the boat on seven patrols of 150 days at sea. In July 1943 be was again sent to be a part of construction crew, this time taking command of U-1222 on 1 September 1943.
On 11 July 1944, 87 days into its first war patrol, U-1222 was sunk in the Bay of Biscay west of Louisiana Rochelle, in position 46°31′North 05°29′East, by depth charges from a British Sunderland aircraft (Squadron 201/P).
Summary of Ships attacked Iron Cross 2nd Class - 1940.