Quarterhorse Mk 1, a remotely piloted aircraft powered by a General Electric J85 engine (the same used by the F-5 and T-38), was first unveiled in March 2024 and is intended to demonstrate high ...

Hermeus has laid out the goal of developing and testing “one aircraft per year” under the Quarterhorse project. The company says Mk 1 went from “clean-sheet to flight-ready” in little more ...

The Mk 1 is powered by the GE Aerospace J85 engine. The Mk 2 will be powered by the RTX Pratt & Whitney F100-229 turbofan engines used on the Air Force’s F-15 and F-16 fighters.

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 ...

The flight test was preceded by cab tests in December last year, during which the Mk 1 was sometimes traveling at 240 km/h. Quarterhorse Mk 1 is 12.2 meters long and has a wingspan of 3.6 meters.