The new Dual Band Radar (DBR) includes the AN/SPY-3 MFR (Multi-Function Radar) which was developed as the next-generation X-band multi-function air defense radar for the Zumwalt DDG-1000 class (was DD(X) land attack destroyer), as well as aircraft carriers and potentially other non-Aegis ships. It was to provide search, detect, track, and weapon control functions, with reduced manning and life-cycle costs compared to the multiple legacy radars that provide these functions today. The DBR was designed as a smaller, simpler, less capable radar than Lockheed Martin’s AN/SPY-1 Aegis radar system, which includes ballistic missile defense (BMD) capabilities. MFR concept development contracts were awarded to three teams in June 1997, and an EMD contract worth almost $300 million was won by Raytheon in 1999. But cancellation of the DD(X) predecessor DD-21 put the MFR behind schedule and over cost. It was not ready for its first planned platform, CVN-77, and is now planned primarily for the three DDG-1000 class destroyers and just one aircraft carrier (CVN-78). In the DBR, the MFR was to operate in conjunction with the S-band AN/SPY-4 VSR (Volume Search Ra- dar), the next generation over-the-horizon long range S-band (was L-band) 3D volume search radar. It was to be mounted in conjunction with the Navy’s SPY-3 MFR as part of the DBR system, serving the same func- tions as the legacy AN/SPS-48 and SPS-49. In April 2004, Raytheon won a $78 million contract modification to switch the VSR program from L-band to S-band. Lockheed Martin is developing the S-band array.