Standard Missile-3: Beating ballistic missiles on land and at sea
The SM-3® interceptor is a defensive weapon the U.S. Navy uses to destroy short- to intermediate-range ballistic missiles.
The interceptor uses sheer force, rather than an explosive warhead, to destroy its target. Its “kill vehicle” hits threats with the force of a 10-ton truck traveling 600 mph. This technique, referred to as “hit-to-kill,” has been likened to intercepting a bullet with another bullet.
Land-based SM-3 Interceptor
The SM-3 interceptor is a critical piece of the Phased Adaptive Approach for missile defense in Europe. Currently, U.S. Navy ships carrying SM-3 interceptors deployed off Europe's coast provide the continent's only "upper tier" defense from the growing threat of ballistic missiles. Earlier this year, the first land-based interceptors site became operational in Romania, further enhancing Europe's protection.
The flexibility of the SM-3 interceptor to be both land- and sea-based offers countries that do not have ballistic missile defense-enabled navies to take advantage of the incredible capacity to protect large areas of land. This is often referred to as regional defense. The SM-3 missile can cover larger areas with fewer installations, when compared to other "lower tier" missile defense solutions.
Whether on land or at sea, the SM-3 interceptor continues to excel in testing. In 2014, the Block IB variant was successfully launched for the first time from an Aegis Ashore testing site in Hawaii. Later in the year, the missile destroyed a short-range ballistic missile target during a highly complex integrated air and missile defense exercise in the Pacific Ocean.
The program has more than 25 successful space intercepts, and more than 240 interceptors have been delivered to U.S. and Japanese navies.
SM-3 Block IB Interceptor
The SM-3 Block IB interceptor has an enhanced two-color infrared seeker and upgraded steering and propulsion capability that uses short bursts of precision propulsion to direct the missile toward incoming targets. It became operational in 2014, deploying for the first time on U.S. Navy ships worldwide.
SM-3 Block IIA Interceptor
The next-generation SM-3 Block IIA interceptor is being developed in cooperation with Japan and will be deployable on land as well as at sea. It has two distinct new features: larger rocket motors that will allow it to defend broader areas from ballistic missile threats and a larger kinetic warhead.
The Block IIA variant is the centerpiece of the European missile defense system. The program is on track for 2018 deployment at sea and on land in Poland.
Evolution of the SM-3® interceptor
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SM-3® Block IIA missile intercepts ballistic missile target in test
Aegis Ashore Weapon System and SM-3® Block IB missile flight test FTO-02 E1a
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