This is the Ohio-Class: The Largest U.S. Submarine

America’s Ohio-class ballistic-missile submarines are among the quietest and most exceptional military machines in human history, as well as the stealthiest submarines in the world.

Each displacing Eighteen thousand seven hundred fifty tons submerged, the Ohio-class boats are the largest submarines ever built for the U.S. Navy. Now, they are also the second-largest submarines, after the Twenty-four thousand tons Borei class.