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在单翼机革命引发的新型战斗机研制与发展竞争中,以前的领导者和新竞争者,只是在二战期间及其改进发展阶段(1940～1945)达到高潮,并未完全成功。战后,在由喷气发动机所形成的技术革命期间,一些公司彻底地失败了。50年代,贝尔公司在制造直升机方面获得了商业上的成功,但寇蒂斯和布鲁斯特公司已不再是主承包商。这些公司从作战飞机市场中退出的部分原因是二战结束后采购预算急剧减少。但是,与一战后一段时期内的情况完全不同,采购预算、特别是研究与发展预
In the competition for the development and development of new fighter jets triggered by the single-wing revolution, former leaders and new competitors only reached the climax during World War II and its stage of improvement and development (1940-1945) and were not completely successful. After the war, some companies failed completely during the technological revolution formed by jet engines. In the 1950s, Bell made commercial success in the manufacture of helicopters, but Curtis and Brewster were no longer prime contractors. Part of the reason for these companies to withdraw from the combat aircraft market is the drastic reduction in procurement budgets after World War II. However, completely different from what happened during the first period after World War I, procurement budgets, especially research and development