美国空军的愿景是以苹果制造iPhone的方式快速生产先进战斗机,并以秘密的“下一代空中优势”(NGAD)项目的重大修改作为开端。The U.S. Air Force’s vision to rapidly produce multiple fleets of advanced fighters the way Apple makes iPhones begins with an important change in plans for the secretive Next-Generation Air Dominance (NGAD) program.