PROPULSION: .............Mk 134 solid-propellant rocket motor
WARHEAD:...................Mk 139 90-pound angular blast-fragmentation
CONTRACTOR: ...........Raytheon Missile Systems
STANDARD MISSILE (SM)
BRIEFING: The Standard family of missiles can be used against
missiles, aircraft and ships. The RIM-66C SM- 2 Block III, IIIA
and IIIB MR (medium-range) missiles are the primary air-defense weapons for Ticonderoga-class guided-missile cruisers
and Arleigh Burke-class guided-missile destroyers. The RIM-
156A SM- 2 ER (extended-range) Block IV was designed for the
Aegis Weapon System (AWS) and the Vertical Launching
System to give the battle force greater area anti-air warfare
defense capability against very-high-altitude, large-cross-range
and high-G maneuvering targets. All variants are guided by inertial navigation and midcourse commands from AWS using semi-active radar or an infrared sensor for terminal homing. The
Block IV is deployed as a terminal-phase ballistic missile
The RIM- 161 SM- 3 is a development by the Missile Defense
Agency (MDA) of the SM- 2 ER Block IV, optimized for sea-based defense against short- to intermediate-range ballistic missiles in midcourse flight. It includes a third rocket stage, a
GPS/inertial guidance system and a Boeing-developed kinetic
warhead. Since 2005, the RIM-161B SM- 3 Block 1A — featuring
increased reliability and a one-color seeker — has been in production for the U.S. Navy and the Japanese Maritime Self-Defense Force.
The RIM-161C SM- 3 Block 1B includes an advanced, two-color infrared seeker and throttling divert- and attitude-control
system for increased maneuverability against sophisticated warheads. The Block 1B was deployed aboard the Ticonderoga-class
cruiser USS Lake Erie for a 2010 initial operational capability
(IOC). The Block 1B also will be deployed at the Aegis Ashore
site in Romania in 2015.
The SM- 3 Block II is being developed as a phase of Block IIA
development by the United States and Japan and will not
The SM- 3 Block IIA — planned for an IOC of 2018 — has a
21-inch-diameter rocket body, larger rocket motors, a more discriminating seeker and more advanced kinetic warhead. The
SM- 3 will be deployed on several Arleigh Burke-class destroyers
and Ticonderoga-class cruisers, and four Japanese destroyers.
The Block IIA also will be deployed to Aegis Ashore land sites
in Europe to provide ballistic missile defense.
In April 2011, Lockheed Martin was awarded a $43.3 million
contract to define the concept for the SM- 3 Block IIB, which will
provide an early intercept capability against intermediate- and
long-range ballistic missiles. Development of the SM- 3 Block IIB
was suspended by the Defense Department in 2013 in favor of
shifting funding to other components of the nation’s ballistic
missile defense system.
The RIM- 174 SM- 6 Extended-Range Active Missile, a dual-mode active/semi-active radar missile, uses the active seeker
radar from the AIM- 120 Advanced Medium-Range Air-to-Air
Missile. The SM- 6 is able to increase the battlespace to the horizon using its autonomous active seeker mode either with Aegis
in a standalone configuration, or beyond the horizon with an
engage-on-remote capability. The SM- 6 also is capable of sea-based terminal ballistic missile defense, but no decision has
been made to use the SM- 6 in that role.
Raytheon began low-rate initial production of the SM- 6 Block
I in 2010. Full-rate production was approved in May 2013. IOC
was achieved in November 2013. Follow-On Operational Test &
Evaluation is scheduled for completion in 2016.
57 WWW.SEAPOWERMAGAZINE.ORG SEAPOWER ALMANAC 2015
RIM-162D EVOLVED SEA SPARROW MISSILE
STANDARD MISSILE- 6