1997年4月,绰号“猛禽”的首架生产型F-22战斗机走下生产线,标志着美空军历时10多年的ATF先进战斗机研制计划终于进入生产装备阶段。作为新一代主力制空战斗机,从外型尺寸和重量来看,F-22与F-15是同一量级的,其最大飞行速度和升限非但没有提高,反而有所降低(F-15最大飞行速度是2.5马赫,实用升限18000米)。但F-22具有隐身性、超音速巡航性、超机动性和敏捷 In April 1997, the first production F-22 fighter named “Raptor” stepped off the production line, marking the first time that the U.S. Air Force’s ATF advanced fighter development program has finally entered the production equipment phase. As a new generation of main air-to-air combat aircraft, the F-22 and F-15 are the same order of magnitude in size and weight, but their maximum flight speed and ceiling are not increased but decreased Flight speed is Mach 2.5, practical ceiling 18000 meters). But the F-22 has stealth, supersonic cruise, super maneuverability and agility