09:05 GMT, March 19, 2009 SACRAMENTO, Calif. | Aerojet, a GenCorp (NYSE: GY) company, announced today that its two Terminal High Altitude Area Defense (THAAD) boost motors performed optimally during a THAAD flight test yesterday at the Pacific Missile Range in Kauai, Hawaii.

THAAD is a mobile missile defense technology designed to intercept and destroy short- to medium-range ballistic missiles during the final, or terminal, phase of their flight, and provides broad area coverage against threats to critical assets such as population centers, industrial resources and military forces.

Aerojet manufactures THAAD boost motors for Lockheed Martin Corporation, the prime contractor and systems integrator supplying the system to the Missile Defense Agency.

For this salvo test, two interceptors were launched at a single target. The incoming target was acquired by tracking radar, and both interceptors were launched to intercept the target. The first interceptor destroyed the target, and the second interceptor was destroyed by range safety officers as planned.

"Aerojet's entire THAAD team is pleased to see these increasingly challenging flight tests continue to be successful on a program that is so critical to our national security," said Aerojet THAAD Program Manager, Charlie Meraz.

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