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New Hermeus Hybrid Turbojet Engine Converts to Hypersonic Ramjet Engine in Flight

New Hermeus Hybrid Turbojet Engine Converts to Hypersonic Ramjet Engine in Flight
Atlanta based Hermeus has its sights set on Mach 4 next year, to beat the Mach 3.3 benchmark set by the SR-71 Blackbird in 1976. The photos show its Chimera hybrid engine nailing the switch between low-speed turbojet mode and hypersonic ramjet mode. Under US Air Force funding, the company is building the Quarterhorse project, a dart-shaped, remotely-piloted UAV designed to sprint faster than any aircraft before it. With funding awarded in 2021, Hermeus claims...

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