On may 4, 1945 one of the most advanced submarines in the world crept up to a british royal navy cruiser The type xxi’s technological superiority, though, inspires looks to the past even more than to the future The type xxi were revolutionary submarines, concentrating many innovations to revert the battle of the atlantic, but they arrived too late. The submarine became the first to operate faster under water than on it and opened the doors to a new chapter in submarine warfare and design.
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