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China Might Have Built a Mach 9 Kerosene-Powered Hypersonic Engine Researchers in China claim to have developed a hypersonic engine capable of propelling a plane up to speeds of Mach 9, nine times the speed of sound. Interesting Engineering reported that Liu Yunfeng, a senior Chinese Academy of Sciences engineer, led the team that created the unique detonation wave engine. The engine generates thrust via detonating kerosene in a series of explosions instead of continually like combustion engines. Earlier this month, technical information on the kerosene-powered engine was published in the peer-reviewed Journal of Experiments in Fluid Mechanics. Besides the...
