A Boeing [NYSE: BA] Harpoon Block II missile equipped with a redesigned Guidance Control Unit (GCU) flew for the first time in a test conducted on Sept. 10. It was launched from the USS Princeton off the coast of California and scored a direct hit on a land-based target on San Nicolas Island, Calif.
The new GCU, which controls most of the missile's functions, incorporates a Selective Availability Anti-Spoofing Module (SAASM) Global Positioning System (GPS) receiver to improve GPS security. In addition, the GCU resolves obsolescence issues and can accommodate possible future implementation of a data link for network centric operations.
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