Hermeus Quarterhorse Groundwork Paves Way For Flight Tests

Two Hermeus evaluation vehicles

Flight tests of the GE J85-based Chimera I-powered Quarterhorse (right) and ground tests of the larger P&W F100-129 (left) for the follow-on Darkhorse are scheduled to take place this year.

Credit: Hermeus
Practice makes perfect—at least that is what hypersonic startup Hermeus is hoping as it prepares to start flight-testing its Quarterhorse demonstrator after completing ground tests of a nonflying prototype with U.S. Air Force and regulatory personnel. The Atlanta-based company says the recent...

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