The computer replacement program for the joint surveillance target attack radar system

This paper presents development and testing results of the Computer Replacement Program (CRP) for the Joint Surveillance Target Attack Radar System (Joint STARS). Joint STARS, which consists of a modified Boeing 707-300 (E-8C) developed by Northrop Grumman and Common Ground Stations developed by Motorola, provides theater commanders near real-time surveillance and attack support information on moving and stationary targets. Diminishing manufacturing sources and an emphasis on life-cycle cost reduction required a modernization program that took maximum advantage of commercial equipment. The primary program objectives were maximizing marketplace support, reducing life-cycle costs and facilitating cyclic upgrades. CRP implemented this via a commercial off-the-shelf-based open architecture. The Computer Replacement Program met all its development objectives and will be fielded on the entire 15-aircraft Joint STARS fleet. Lessons learned included applying innovative acquisition processes in an open architecture, adapting to processes while under schedule pressure, ensuring early operational tester involvement, and estimating laboratory and ground testing in addition to flight-testing. The views expressed in this paper are those of the authors and do not represent views of the U.S. government or their contractors.