Only the underlined positions in the BdU KTB are known positions, all others were plotted with the expected day's run on passage to or from the ordered patrol area. The abbreviation "Op" shows that the U-boat was thought to be in it operational area.

In this late stage of the war the U-boats only seldom used the radio so their whereabouts are largely unknown if they were sunk without survivors. With so many of the U-boats lost that were sent to the English Channel to attack the ships of the invasion fleet after D-Day in June 1944, it is almost impossible to tell which of the numerous Allied anti-submarine attacks were directed against which U-boat. The loss of U-1191 is now credited to depth charge attacks carried out by several Allied warships on 3 July 1944.

According to U-boat Assessment Committee the area south of Ireland, where the Liberators of 59 Squadron dropped depth charges on suspicious oil patches, was known as area of drifting oil slicks and such attacks were not assessed.

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Rainer

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