March 8, 2006 :: The Missile Defense Agency :: News
The U.S. and Japan successfully test-launched a Standard Missile-3 (SM-3) today from the Aegis-equipped cruiser
USS Lake Erie near Hawaii. The SM-3 was equipped with an experimental nosecone, which is being jointly developed by the Missile Defense Agency and the Japanese Defense Agency.
The demonstration also tested prototypes for the rocket motor, but the primary test was of an innovative “clamshell” nosecone, designed by Japan to more quickly release the interceptor’s kill vehicle. In the standard configuration for previous tests, the SM-3 missile must maneuver to eject the barrel-shaped kill vehicle—a process known as “pitch and ditch.” The newer nosecone eliminates the need for such maneuvers, which in turn means the kinetic kill vehicle can collide with and destroy its target more quickly. The flight test did not involve an attempted intercept of a target missile, but simulated target data was instead fed into the computers of Aegis weapon system. Instead of a kill vehicle aboard the SM-3, its nosecone instead contained a camera and instruments to register temperature and shock readings during the flight. In today’s test, the nosecone was deployed at about 88 kilometers above the Pacific Ocean and 96 km northwest of the island of Kauai.
Japan has already decided to procure the SM-3 and the Aegis defense system for several of its Kongo class destroyers, as well as purchasing a number of Patriot (PAC-3) interceptors, and having received a license to produce others. Japan’s innovation in missile defense technologies is a further sign of growing international support for ballistic missile defense.
(Article)» Defense News on SM-3 Test
» MDA Photos of SM-3 interceptor launch
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