The Chimera engine is the new tool for hypersonic systems.

The Hermeus corporation developed new advanced hypersonic aircraft called "Dark Horse". The Dark Horse is interesting because of the new engine type, called "Chimera". The Chimera system is the most advanced hypersonic hybrid system.

1) Turbojet Mode: At low speeds, Chimera operates like a typical turbojet engine found in jet aircraft. It uses the incoming air for combustion and thrust.

2) Ramjet Mode: As the speed increases. Chimera transitions to ramjet mode. In this mode, it bypasses the incoming air around the turbojet and relies solely on the ramjet for propulsion. Ramjets are more efficient at hypersonic speeds.

3) Hybrid Design: The key innovation is that Chimera combines both turbojet and ramjet technologies in a single engine. This hybrid approach allows for efficient operation across a wide range of speeds.

4) Operational Hypersonic Flight. Unlike traditional rocket engines used in most hypersonic platforms. Chimera doesn’t require rockets for acceleration. This makes it more practical for operational hypersonic flight, where aircraft can be turned around rapidly like modern planes today.

Images: Hermeus/Artist’s conception

The Chimera system makes the new advanced aircraft called Dark Horse possible. The Dark Horse is the new hypersonic reusable uncrewed aerial system (UAS). That system can transport satellites to the orbiter. But it can also operate at low altitudes. The Dark Horse would have military and civil missions. The Dark Horse could have vertical take-off and landing (VTOL) capacity.

And it can be more advanced and include more tactical and strategic capacity. Than any other aircraft in the world. The hypersonic capacity makes it possible that Dark Horse can attack against hypersonic missiles. And it can have more reconnaissance capacity than SR-71. The Dark Horse can have more capacity if there is a scramjet engine in its body. The scramjet engines can be separately installed in Dark Horse's body.

https://www.asdnews.com/news/aerospace/2022/11/18/hermeus-completes-hypersonic-milestone-with-engine-tests

https://www.hermeus.com/chimera

https://www.hermeus.com/press-release-tbcc-milestone

https://interestingengineering.com/transportation/chimera-hybrid-turboramjet-engine

https://newatlas.com/aircraft/hermeus-chimera-hypersonic-test

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