SSN-774 Virginia-class
Los Angeles | Seawolf | NSSN | |
---|---|---|---|
Length: | 360 feet (110 meters) | 353 feet (108 meters) | 377 ft. (115 m) |
Beam: | 33 feet (10 meters) | 40 ft. (12.2 m) | 34 ft. (10.4 m) |
Submerged displacement (long tons): | 6,900 | 9,100 | 7,800 |
Submerged speed: | 25+knots | 25+knots | 25+knots |
Depth: | 800+ ft. (250 m) | 800+ ft. (250 m) | 800+ ft. (250 m) |
Weapons | |||
Mk 48 ADCAP torpedoes | x | x | x |
Tomahawk cruise missiles | x | x | x |
Mk60 Captor mines | x | x | x |
Advanced mobile mines | x | x | x |
Unmanned underwater vehicles | -- | -- | x |
Specifications | |
---|---|
Contractors |
General Dynamics Electric Boat Division [lead design authority] Newport News Shipbuilding Lockheed Martin Federal Systems (Combat System) Raytheon Electronics Systems (Combat System) |
Power Plant | One S9G pressurized water reactor ??,000 shp [early units] One Transformational Technology Core (TTC) pressurized water reactor ??,000 shp [later units] one shaft with pumpjet propulsor Improved Performance Machinery Program Phase III one secondary propulsion submerged motor |
Displacement | 7,800 tons submerged |
Length | 377 feet |
Draft | 32 feet |
Beam | 34 feet |
Speed | 25+ knots submerged |
Depth | Greater than 800 feet |
Horizontal Tubes | Four 21" Torpedo Tubes |
Vertical Tubes | 12 Vertical Launch System Tubes |
Weapons | 38 weapons, including: Vertical Launch System Tomahawk Cruise Missiles Mk 48 ADCAP Heavyweight Torpedoes Advanced Mobile Mines Unmanned Undersea Vehicles |
Special Warfare |
Dry Deck Shelter Advanced SEAL Delivery System |
Sonars |
Spherical active/passive arrays Light Weight Wide Aperture Arrays TB-16, TB-29, and future towed arrays High-frequency chin and sail arrays |
Countermeasures | 1 internal launcher (reloadable 2-barrel) 14 external launchers |
Crew | 113 officers and men |
Total Program |
30 systems Total program cost (TY$) $67034M Average unit cost (TY$) $2110M |
Status | Full-rate production 1QFY07 |
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