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U-400 is a boat accessible salt water dive site, located in United Kingdom. The maximum depth is over 150ft/46m.


Type 7c Sunk during mid-December 1944 on the British deepwater minefield ’HW A3’ set at 70’ in position 50°33,16’n / 05°11.37’w off the Cornish coast. 50 dead (all hands lost). (Dr. Axel Niestlé, 2010)

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