Raytheon Co. and Northrop Grumman Corp. recently completed a significant milestone for the Cobra Judy Replacement program. The CJR S-band active phased-array antenna was successfully delivered to the CJR integration site at Kiewit Offshore Services, Corpus Christi, TX, completing the development phase of the program.

The mission of the CJR program is to provide the government with long-loiter ballistic missile data collection capability. Its dual-band radar suite consists of X-band and S-band phased-array sensors, a common radar suite controller, and other related mission equipment. The program now progresses to full dual-band radar integration and testing.

"This delivery represents a tremendous step forward for the CJR program and the entire industry team," said Raytheon Integrated Defense Systems' Patrick "Kevin" Peppe, Vice President of Seapower Capability Systems. "This sophisticated radar suite will provide an integral sea-based treaty verification capability to the United States and its allies."

"The S-band phased array demonstrated excellent performance," said Dave Perry, Vice President and General Manager of Northrop Grumman's Naval and Marine Systems Division. "This large antenna is well equipped to fulfill its mission."

Work on the CJR program is primarily performed at Raytheon IDS' Surveillance and Sensors Center, Sudbury, MA; at Northrop Grumman Electronic Systems, Baltimore, MD; and at Kiewit Offshore Services.