According to research findings published in the Journal of Experiments in Fluid Mechanics, the new engine is capable of achieving speeds between Mach 6 and Mach 16. Traditional air-breathing engines struggle to reach such velocities, making this innovation a major leap forward in aerospace propulsion.
The oblique detonation engine could theoretically propel aircraft up to 16 times the speed of sound, translating to approximately 19,600 kilometers per hour. For context, NASA's experimental X-43 aircraft, developed in the early 2000s, was previously the fastest jet, achieving speeds of Mach 9.6 (roughly 3.2 kilometers per second). By reaching Mach 16 (5.4 kilometers per second), this new engine nears the velocity required for low Earth orbit, which stands at around 7.9 kilometers per second.
This advancement effectively bridges the speed gap between conventional aviation and space travel, bringing the prospect of air-space planes closer to reality. As the South China Morning Post noted, this breakthrough represents "a potential game-changer in hypersonic propulsion that could redefine the limits of air and space travel."
Further experimental studies will be conducted at JF12, a shock tunnel facility in Beijing that can simulate conditions necessary for high-Mach-speed flight. With continued progress, the dream of a plane that seamlessly transitions from air to space travel may soon become a reality.
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