The AIM-4 Falcon was an air-to-air missile developed by the United States in the 1950s. Designed for use by fighter aircraft, it was primarily intended to engage enemy aircraft at beyond-visual-range distances. The missile featured a semi-active radar homing guidance system, allowing it to track targets effectively. The AIM-4 Falcon was used by several military branches, including the U.S. Air Force and U.S. Navy. It was deployed on various aircraft, such as the F-102 Delta Dagger and F-4 Phantom II. Although it was eventually phased out in favor of more advanced missiles, the AIM-4 played a significant role in early air combat technology.