He also spotted a stamp on one of the propellers of ... of damage that could be fatal to a U-boat, stopping her from submerging anymore.” During World War I, more than 200 Q-ships—and perhaps ...

U-869, the submarine profiled in the NOVA program "Hitler's Lost Sub," was just one of ... or U-boats, sunk, scuttled, captured, or otherwise lost to German forces during World War II.

When most people think of World War One, they think of trenches and machine ... Germany changed tack, putting their efforts into submarines called U-boats, which were cheap and could slip through ...