Sturgeon Class Submarine

Sturgeon Class Submarine

The Sturgeon class (colloquially in Navy circles, the 637 class) were a class of nuclear-powered fast attack submarines (SSN) in service with the United States Navy from the 1960s until 2004. They were the "work horses" of the submarine attack fleet throughout much of the Cold War. The boats were phased out in the 1990s and early 21st century, as their successors, the Los Angeles, followed by the Seawolf and Virginia class boats, entered service.