In 1914 the U-boat's chief advantage was to submerge; surface ships had no means to detect a submarine underwater, and no means to attack even if they could, while in the torpedo the U-boat had a weapon that could sink an armoured warship with one shot.
limitation
A disadvantage was that the subs were very crampled and dark and smelled because of how cramped it was. You could never fully straighten out and you practically lived on the other sailors, you would also go days without seeing the sun.Mar 7, 2012
