The AGM-129 Advanced Cruise Missile is the U.S. Air Force's subsonic, turbofan-powered, air-launched cruise missile. When the threat is deep and heavily defended, the ACM stands ready to deliver the proven effectiveness of a cruise missile enhanced by stealth technology. The ACM is less detectable and has greater range, accuracy and operational flexibility than the AGM-86 Air Launched Cruise Missile. Maximum range is achieved through a highly efficient engine, aerodynamics and fuel loading. Built by Raytheon Missile Systems Company with world class manufacturing capabilities, the ACM is the world's superior cruise missile weapon system. The ACM is operational on the U.S. Air Force B-52 aircraft.