In 1952, Sanders Associates, Inc., worked with McDonnell Aircraft Company to develop a radar using phased array concepts. This led to the PANoramic Array Radar (PANAR) contract with the U.S. Air Force. Its key design element—multibeam phased arrays—is the basis of present-day radar defense and surveillance systems.
Northrop Grumman recently delivered the first production-version of a new upgraded, jam-resistant airborne navigation system for the Air Force's F-22 Raptor and Navy’s E-2D Advanced Hawkeye aircraft.