A year before, a joint U.S./European agreement for development of a new family of air-to-air weapons had been signed. In February 1979, Hughes and Raytheon were selected as finalists for the YAIM-120A AMRAAM (Advanced Medium-Range Air-to-Air Missile) competition, and in December 1981 Hughes was declared winner. The SARH (Semi-Active Radar Homing) guidance of the AIM-7 Sparrow required the launching aircraft's radar to illuminate the target until impact, which made the aircraft a target itself and also limited its ability to engage several targets simultaneously. military services decided that they needed a medium-range air-to-air missile with a true fire-and-forget capability. It is also used by the Surface-Launched AMRAAM of the US Army and NASAMS (Norwegian Advanced Surface to Air Missile System). It is integrated with combat aircraft such as the F-15, F-16, F/A-18, F-22, Typhoon, Gripen, Tornado, Harrier, F-4, and the F-35 Joint Strike Fighter. The missile has completed over 1.8 million captive-carry hours and 2,900 live firings. The AMRAAM has been delivered to 36 countries tol date. When an AMRAAM missile is being launched, NATO pilots use the brevity code Fox Three. It employs active, semi-active, and inertial navigational methods of guidance to provide an autonomous launch and leave capability against single and multiple targets in all environments. AMRAAM is a supersonic, air launched, aerial intercept, guided missile employing active radar target tracking, proportional navigation guidance, and active Radio Frequency (RF) target detection. It has an all-weather, beyond-visual-range capability and is scheduled to be operational beyond 2000. military's standard BVR (Beyond Visual Range) intercept missile. The AIM-120 AMRAAM (Advanced Medium-Range Air-to-Air Missile) is a fire-and-forget air-to-air missile manufactured by Raytheon, and has replaced the AIM-7 Sparrow as the U.S.
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