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美国经过 ＳＲ─７１、 Ｆ─１１７、Ｂ—２、Ｆ－２２和尚在验证机试飞竞争阶段的 ＪＳＦ 几代隐身飞机的设计经验积累，在隐身飞机推进系统设计中的雷达和红外隐身技术已日斟完善。在进气道和调节锥之间采用窄环形管道设计、在进气道口安装吸波材料格栅屏、采用双Ｓ形进气道设计和越来越先进的吸波涂层材料等几代隐身技术的研究和应用，使美国现有和在研的隐身飞机已经基本具有了在满足战技性能指标的前提下，还能够在现代空防探测系统下隐身的特点
The United States has accumulated experience in the design of several generations of stealthy aircraft of the JSF through SR-71, F-117, B-2 and F-22 monsters during the test flight test phase. The radar and infrared stealth technology in the stealth aircraft propulsion system design Pour perfect. Narrow annular pipe design between inlet and adjusting cones, installation of absorbing material grille screen at intake port, double S-shaped inlet design and more and more advanced absorbing coating material, etc. Technology research and application, the United States now and in research in the stealth aircraft has basically met the war on the premise of the performance indicators, but also in modern air defense detection system stealth features