German submarine U-391

German submarine U-391 was a Type VIIC U-boat of the Nazi German Kriegsmarine during World War II.

She carried out one patrol. She did not sink or damage any ships.

She was sunk by a British aircraft northwest of Cape Ortegal in Spain in October 1943.

Service history
The submarine was laid down on 9 January 1942 at the Howaldtswerke (yard) at Flensburg as 'werk' 23, launched on 5 March and commissioned on 24 April 1943 under the command of Oberleutnant Gert Dültgen.

The boat was a member of three wolfpacks.

She served with the 5th U-boat Flotilla from 24 April 1943 and the 3rd flotilla from 1 October of the same year.

Patrol and loss
The boat departed Kiel on 23 October 1943. Passing through the 'gap' that separates Iceland and the Faroe Islands, she was attacked by a Vickers Wellington of No. 179 Squadron RAF on 28 November.

On 13 December, she was attacked and sunk by depth charges dropped from a British B-24 Liberator of 53 Squadron on the western edge of the Bay of Biscay, northwest of Cape Ortegal in Spain.

51 men died in the U-boat; there were no survivors.