Standard SM-4 LASM  
Initial Operational Capability (IOC): 2004
Total Production: ?
Also Known As: Land Attack Standard Missile
Origin: United States of America
Corporations: Raytheon
Parent System: Standard Missile
Initial Operational Capability (IOC): 1970
Total Production: ?
Family Members: Standard SM-1 ER, Standard SM-1 MR, Standard SM-2 Block II, Standard SM-2 Block III, Standard SM-2 Block IIIA, Standard SM-2 Block IIIB, Standard SM-2 Block IV, Standard SM-2 Block IVA, Standard SM-3 Block IA, Standard SM-3 Block IB, Standard SM-3 Block IIA, Standard SM-3 Block IIB, Standard SM-6 Block I and Standard SM-6 Dual 1
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Description: The RIM-66/67 Standard missile were developed as the replacement for Terrier, Talos and Tartar surface-to-air missiles. It is an all-weather, supersonic, ship-launched, medium to long-range fleet air defense missile providing defense for an entire fleet area. There are 5 major types of Standard missiles: the SM-1, SM-2, SM-3, SM-4 and SM-6. The SM-1, SM-2 and SM-6 are air defense missiles, the SM-3 is intended exclusively against medium/long-range ballistic missiles and the SM-4 is a land attack missile. SM-4 development remains uncertain. The baseline Standard, the SM-1 model, was a semi-active radar guided missile while late models incorporate advanced signals processing, GPS, IR-guidance system as well as other refinements. The Standard missile is operational in frigates, destroyers and cruisers of 14 navies all over the world. The First Standard missile was deployed by US Navy's surface ships in 1970.

The Standard SM-4 LASM (Land Attack Standard Missile) will provide fast response, precision naval fires in support of US military forces ashore. SM-4 utilizes an advanced GPS/INS guidance section (a derivative of SM-3's guidance section) to provide precision strike. A modified Mk-125 warhead will provide lethality against fire support targets. Submunitions and other unitary warheads could be carried as well. Propulsion modifications could increase SM-4' range to up 380 kilometers. The US Navy will make outdated Standard SM-2 Block II/III missiles (1,200?) available for retrofit to a SM-4 configuration.

Standard SM-4 LASM Specifications

Diameter: 340 millimeter (13.4 inch)
Length: 4.72 meter (186 inch)
Wingspan: 920 millimeter
Max Cruising Flight Altitude: 20,000 meter (65,617 foot)
Max Range: 80,000 meter (43 nautical mile)
Top Speed: 3.20 mach (3,826 kph)
Weight: 750 kilogram (1,653 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)

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