Visual feeds from the masts are displayed on LCD interfaces in the command center. Signals from the masts' sensors are transmitted through fiber optic data lines through signal processors to the control center. Each mast contains high- resolution cameras, along with light-intensification and infrared sensors, an infrared laser rangefinder, and an integrated Electronic Support Measures (ESM) array. Instead of a traditional periscope, the class utilizes a pair of AN/BVS-1 telescoping photonics masts located outside the pressure hull. The Virginia class incorporates several innovations not previously incorporated into other submarine classes. The "Centurion Study" was initiated in February 1991. The class was developed under the codename Centurion, renamed to NSSN (New SSN) later on. They were conceived as a less expensive alternative to the Seawolf-class attack submarines, designed during the Cold War era, and they are planned to replace the older of the Los Angeles-class submarines, twenty of which have already been decommissioned (from a total of 62 built). The submarines are designed for a broad spectrum of open-ocean and littoral missions. The Virginia-class, also known as the SSN-774-class, is a class of nuclear-powered fast attack submarines ( hull classification symbol SSN) in service with the United States Navy. $50 million per unit (annual operating cost) ġ2 × VLS ( BGM-109 Tomahawk cruise missile) tubesĢ7 × torpedoes & missiles (torpedo room) Newport News Shipbuilding and Drydock Company
The USS Virginia underway in Portsmouth, Virginia, in August 2004.
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