At the top of the naval tree sit the countries able to design, build, and operate nuclear-powered attack submarines (SSN), ...
The attack submarine was handed over to the Russian Navy in a ceremony held at the Sevmash shipyard on the White Sea in ...
Diagram reprinted from Tom Clancy's Submarine: A Guided Tour Inside a Nuclear Warship, Laura Deninno, Series Illustrator.
As per estimates, the US Navy's SSN(X) submarine design would have a submerged displacement of about 10,100 tons.