USS Seawolf (SSN-575)
USS Seawolf (SSN-575), a unique submarine, was the third ship of the United States Navy to be named for the seawolf, the second nuclear submarine, and the only U.S. submarine built with a liquid metal cooled (sodium) nuclear reactor.
Read more about USS Seawolf (SSN-575): Comparison To Nautilus, Initial Construction, 1957–1959, 1960–1966, 1967–1973, 1974–1978, 1981–1987