The U.S. Air Force has approved Lockheed Martin’s preliminary design for its next-generation mobile, long-range surveillance and ballistic missile defense radar.
The Three-Dimensional Expeditionary Long-Range Radar (3DELRR) will serve as the principal ground-based sensor for long-range detection, identification, tracking, and reporting of aircraft and missiles for both the Air Force and the Marine Corps. The system will replace the Air Force’s AN/TPS-75 air search radar. The Marines are also evaluating the system as a replacement for its AN/TPS-59 ballistic missile defense radar.