This body of water was known as the Valley of Death among U-boat men from 1943 onwards. At that time the RAF had gained total air supremacy all over the bay and was sinking U-boats only few hours from their bunkers. The failure of the Luftwaffe to protect the area is baffling.
German U-boats lost in the Bay of Biscay
Positions within 43.00N, 12.00W and 48.20N, 01.00W
This map shows 69 U-boats lost at sea, a significant portion of the overall U-boat losses. Here the Flak-boats were experimented with in an attempt to fend of the allied aircraft. One of the means to combat the ever-present aircraft in this area was the Piening-Route of 1943.
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