JSOW Block II  
Initial Operational Capability (IOC): 2007
Total Production: ?
Origin: United States of America
Corporations: Raytheon
Parent System: AGM-154 JSOW
Initial Operational Capability (IOC): 1999
Total Production: 26,608
Total Cost: USD$8.3 billion
Family Members: AGM-154A JSOW, AGM-154A-1 JSOW, AGM-154B JSOW, AGM-154C JSOW, AGM-154C1 and JSOW ER
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Description: The Joint Standoff Weapon (JSOW) is a modular, family of low-cost weapons designed for high precision strikes from well beyond enemy air defenses. The 3 baseline models carry several submunitions as the warhead or unitary blast fragmentation and penetration warheads. These warheads array enable JSOW gliders to attack soft area targets, armored vehicles and hardened point targets. JSOW also features low-signature/stealth design to engage actively defended targets.

The JSOW weapon variants are guided to the target by a GPS and INS aided navigation system. Target position can be updated by the launch aircraft or a third party through JSOW's on-board communication system. The C model is the only one provided with a seeker to be used in the terminal phase of the flight. The modular design allows future growth incorporating new sensors, warheads and submunitions. AGM-154's back section can accommodate a turbojet for extended range up to 220 kilometers.

Since 1999 the JSOW weapon has been employed successfully during military operations Southern Watch, Allied Force, Enduring Freedom (2002) and Iraqi Freedom (2003). The F-16, F/A-18, B-1, B-2, B-52, F-15E, F-35 and many other aircraft are compatible with the JSOW weapon. Total production for the US military is planned in excess of 20,000 units.

The JSOW Block II weapon is being developed to significantly lower the production unit cost and offer an additional payload. Component parts amount will be reduced and the manufacturing process will be optimized to reach that goal. The development completion of the JSOW Block II, sponsored by the US Navy Air Systems Command, is planned in early 2006.

In addition, the JSOW Block II will introduce RAPTOR anti-jam GPS receiver, Selective Availability Anti-Spoofing Module (SAASM), for enhanced survivability. SAASM integration contract on the JSOW Block II was awarded in early 2005. All variants of JSOW from 2006 will be manufactured in the Block II configuration benefiting from all its enhancements. First delivery of Block II weapons are planned in 2007.

A new variant of JSOW A model carrying a new payload is now under development that could be available from 2006. The new JSOW A version will use a 500-pound (250 kilograms) BLU-111 unitary warhead instead of cluster munitions while elimination the unexploded sub-munitions concerns. It is aimed at the international market.

Other JSOW improvements are under way to add anti-ship capability, reduce unexploded ordnance concerns, hit moving targets, provide bomb hit indication, provide network capability and further reduce costs.

JSOW Block II Specifications

Diameter: 330 millimeter (13.0 inch)
Length: 4.10 meter (161 inch)
Wingspan: 2.69 meter
Max Range: 115 kilometer (62 nautical mile)
Min Range: 22,000 meter
Warhead: 250 kilogram (551 pound)
Weight: 483 kilogram (1,065 pound)
CEP: Circular Error Probable
Meters (m)   Kilometers (km)   Nautic Miles (nm)   Inch (in)   Yard (yd)   Foot (ft)   Millimeter (mm)
Pound (lb)   Kilogram (kg)   kN (KiloNewton)   Ton (t)
Meters per Second (mps)   Kilometers per Hour (kph)   Knot (kt)   Miles per Hour (mph)
Liter (l)   Galon (gl)
Year (yr)   Minutes (min)   Second (sec)
Shaft-Horse-Power (shp)

JSOW Block II News

There are 4 news between
13 Oct 2005 and 31 May 2007
Thursday, May 31, 2007Raytheon Delivers First JSOW Block II Weapon
Tuesday, February 20, 2007Raytheon Demonstrates Engine for Powered Joint Standoff Weapon Extended Range
Monday, October 16, 2006JSOW Block II Tested Successfully by the US Navy
Thursday, October 13, 2005JSOW Program Achieves New Milestone

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