The US aviation company Hermeus wants to build hypersonic airplanes. The Quarterhorse Mk 1 prototype has completed its maiden flight.

Hypersonic startup Hermeus has confirmed the successful completion of the first flight of its Quarterhorse Mk 1 demonstrator. Although the feat was not publicly announced until May 27, 2025, the ...

Hermeus on May 27 said its Quarterhorse Mk 1 unmanned aircraft successfully flew for the first time, a key milestone on the startup’s path to developing high-Mach and hypersonic aircraft. […] ...

In a breakthrough moment for experimental aerospace development, aviation startup Hermeus has completed the first flight of its Quarterhorse Mk 1—an uncrewed test aircraft representing a critical ...

Hermeus flew Quarterhorse Mk 1 after just one year of development, proving remote ops and accelerating hypersonic aircraft progress.

The high-speed uncrewed test aircraft performed its first flight at Edwards AFB, just a year after the launch of the development. Hermeus, a U.S. company ...

The subsonic test vehicle is the first flight-capable aircraft in the Quarterhorse line, with which Hermeus eventually hopes to break the Mach 5 hypersonic barrier.

The Quarterhorse Mk 1 has flown a successful flight test at Edwards AFB. It promises to pave the way for routine hypersonic flight for future warfighters. The uncrewed aircraft was developed by ...

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Hypersonic start-up Hermeus has completed ground testing of its Quarterhorse Mk 1 vehicle and is preparing to launch a flight test campaign for the subsonic jet. The Atlanta-based firm on 17 ...