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Military


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
Reactor Power: 35,000 shp52,000 shp40,000 shp (30 MW)
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
40,000 shp (30 MW) [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
Block IBlock III
SSN 784-791
Block V
Displacement 7,800 tons submerged ..9,500 tons submerged
Length 377 feet 377 feet461 feet
Draft 32 feet 32 feet 32 feet
Beam 34 feet 34 feet34 feet
Speed 25+ knots submerged 25+ knots submerged knots25+ knots submerged ?
Depth Greater than 800 feet Greater than 800 feetGreater than 800 feet
Horizontal Tubes Four 21" Torpedo Tubes Four 21" Torpedo TubesFour 21" Torpedo Tubes
Vertical Tubes 12 Vertical Launch System Tubes 2 large diameter Virginia Payload Tubes [VPT]
(in lieu of VLS beginning with SSN 784) for
12 Tomahawk Cruise Missiles
  • 2 large diameter VPT (in lieu of VLS) for
    12 Tomahawk Cruise Missiles
  • Virginia Payload Module [VPM] with
    4 additional large diameter payload tubes for an
    additional 28 Tomahawk Cruise Missiles (or 40 in total)
  • 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
    Dry Deck Shelter
    Advanced SEAL Delivery System
    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
    Large Aperture Bow (LAB)
    Light Weight Wide Aperture Arrays
    TB-16, TB-29, and future towed arrays
    High-frequency chin and sail arrays
    Large Aperture Bow (LAB)
    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
    1 internal launcher (reloadable 2-barrel)
    14 external launchers
    1 internal launcher (reloadable 2-barrel)
    14 external launchers
    Crew 113 officers and men 132: 15 officers; 117 enlisted132: 15 officers; 117 enlisted



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    Page last modified: 26-12-2019 18:27:24 ZULU