Development history
mediumSSN-774 is the lead Virginia-class attack submarine and the start of the Navy's current SSN family.
USS Virginia (SSN-774) is the lead ship of the Virginia-class nuclear-powered attack submarines. The class was conceived as a more affordable successor to Seawolf-class submarines while replacing older Los Angeles-class boats. As the lead ship, SSN-774 represents the transition to a modular, littoral-capable, open-architecture attack submarine family built for long service and upgrade cycles.



