美国冷战时期的战斗机项目,包括XF-91和F-20,因政策转变和政治而被取消,尽管有些技术后来影响了喷气式飞机。 Cold War-era U.S. fighter projects, including the XF-91 and F-20, were canceled due to policy shifts and politics, though some tech influenced later jets.

冷战驱使制造了先进的军用飞机,如共和国XF-91 Thundereptionor和Northrop F-20 Tigshark,前者是美国第一架使用喷气机和火箭推进力超过马赫1级的战斗机,后者是因政策和政治反对派改变而取消的具有成本效益的出口战斗机。 The Cold War drove the creation of advanced military aircraft like the Republic XF-91 Thunderceptor, the first U.S. fighter to exceed Mach 1 in level flight using jet and rocket propulsion, and the Northrop F-20 Tigershark, a cost-effective export fighter canceled due to changed policies and political opposition. 十字军三号是先进的F8U变体,具有高速能力和增强火力,尽管具有战斗潜力,但该变体也被取消。 The Crusader III, an advanced F8U variant with high-speed capabilities and enhanced firepower, was also canceled despite its combat potential. 其他实验设计探索混合推进技术,而这些项目的一些技术则对后来的国际战斗人员产生影响。 Other experimental designs explored mixed propulsion, while some technologies from these projects influenced later international fighters.