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美国国防部国防高级研究计划局(DARPA)已授予波音公司一份总金额1830万美元的合同,进行高超声速飞行(HyFly)技术验证项目的第3次有动力验证试飞.HyFly项目的目标是开发和验证一种由双模冲压(DCR)发动机推进的、持续飞行速度可达Ma= 6的高超声速导弹.该导弹所采用的DCR发动机既具有现有冲压发动机的亚声速燃烧模式,也具有对
Defense Advanced Research Projects Agency (DARPA) of the U.S. Department of Defense has awarded Boeing a $ 18.3 million contract for the third powered verification test of the HyFly technology validation project, which aims to develop And to verify a hypersonic missile propelled by a dual-mode ram (DCR) engine with a sustained flying speed of Ma = 6. The missile uses a DCR engine that has both the subsonic combustion mode of the existing ramjet engine and the twin-