Boeing has delivered four F-15C jet fighters upgraded with the APG-63(V)3 active electronically scanned array (AESA) radar to Kadena Air Base, Japan. The upgraded radar is 50 times more reliable than the mechanically scanned antenna it replaces. The APG-63(V)3 radar is the latest in a series of planned upgrades. These include a fighter-to-fighter data link, GPS navigation, and the Joint Helmet Mounted Cueing System, which enable the warfighter to conduct network-centric operations while employing the latest air-to-air weapons. The newly arrived F-15Cs will join the APG-63(V)1 and (V)2 aircraft already in the 44th and 67th fighter squadrons to provide combat power for the defense of Japan. The upgrades were installed and tested at Langley Air Force Base, Va. Boeing is under contract to fully upgrade 27 Air Force and 18 Air National Guard F-15C/D aircraft with the APG-63(V)3 AESA over the next 10 months. A total of 54 AESA-equipped F-15C/Ds are scheduled to be on station at Kadena by September 2013.