"I-400 and its sister ship, the I-401, were able to travel one and a half times around the world without refueling, a capability that, to this day, has never been matched by any other diesel-electric submarine."
"I-400 and its sister ship, the I-401, were able to travel one and a half times around the world without refueling, a capability that, to this day, has never been matched by any other diesel-electric submarine."