 The facility was 3 million square feet and included manufacturing, laboratories, offices, and a Munson road test course.It designed developed and produced the Air Defense Systems that replaced the Semi Automatic Defense Ground Environment (SAGE) in the United States with the Joint Surveillance System (JSS) AN/FYQ-93 including NORAD with Joint Tactical Information Distribution System (JTIDS) and provided defense systems and air traffic control systems around the world.These systems are massive and at its peak Ground Systems Group employed 15,000 people and generated revenue in excess of $1 billion per year.