1. 3DELRR is a developmental program to replace the USAF TPS-75 radar and, potentially, the USMC TPS-59 as well 2. Development has continued at its scheduled pace, and it appears that it will adhere to this trend 3. Lockheed Martin, Northrop Grumman, and Raytheon were awarded pre-EMD contracts in August 2012, with the announcement of a winner scheduled for the third quarter of 2014.
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