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Monday, November 16, 2009

Kollmorgen to provide electro-optical sensor suites for Virginia-class attack submarines

Electro-optical sensor experts at the Kollmorgen Corp. Electro-Optical Division in Northampton, Mass., won a $17.1 million contract last week for AN/BVS-1 photonics mast sensor units for the U.S. Navy Virginia-class fast attack submarine.

The AN/BVS-1 is a non-hull penetrating electronic imaging subsystem with visible light camera, infrared camera, and electronic support measures sensors, as well as stealth features that will provide new capabilities for attack submarines, Navy officials say.
The submarine sensor suite performs surveillance, intelligence gathering, and electronic warfare, with a multispectral suite of a color and a monochrome high-definition TV cameras, a midwave infrared staring sensor, eye-safe laser rangefinder, as RF sensors.
The system brings infrared search and track (IRST) capabilities such as infrared and visual imaging, and digital image processing. A modified AN/BVS-1(V) is being developed for the Integrated Submarine Imaging System (ISIS) on guided-missile submarines as a replacement for the type 15L periscope.
Kollmorgen will do the work in Northampton, Mass.; Seattle; Methuen, Mass.; Westfield, Mass.; Cincinnati; Orlando, Fla. Awarding the contract are officials of the Naval Sea Systems Command in Washington (pennet).

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):6,9009,100 7,800
Submerged speed:25+knots25+knots25+knots
Depth:800+ ft. (250 m)800+ ft. (250 m)800+ ft. (250 m)
Mk 48 ADCAP torpedoesxxx
Tomahawk cruise missilesxxx
Mk60 Captor minesxxx
Advanced mobile minesxxx
Unmanned underwater vehicles----x

ContractorsGeneral Dynamics Electric Boat Division [lead design authority]
Newport News Shipbuilding
Lockheed Martin Federal Systems (Combat System)
Raytheon Electronics Systems (Combat System)
Power PlantOne 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
Displacement7,800 tons submerged
Length377 feet
Draft32 feet
Beam34 feet
Speed25+ knots submerged
DepthGreater than 800 feet
Horizontal TubesFour 21" Torpedo Tubes
Vertical Tubes12 Vertical Launch System Tubes
Weapons38 weapons, including:
Vertical Launch System Tomahawk Cruise Missiles
Mk 48 ADCAP Heavyweight Torpedoes
Advanced Mobile Mines
Unmanned Undersea Vehicles
Special WarfareDry Deck Shelter
Advanced SEAL Delivery System
SonarsSpherical active/passive arrays
Light Weight Wide Aperture Arrays
TB-16, TB-29, and future towed arrays
High-frequency chin and sail arrays
Countermeasures1 internal launcher (reloadable 2-barrel)
14 external launchers
Crew113 officers and men
Total Program30 systems
Total program cost (TY$) $67034M
Average unit cost (TY$) $2110M
StatusFull-rate production 1QFY07

Source : pennnet