Hermeus Flies Quarterhorse Mk 1, Accelerating the Race to Hypersonic Flight

Everyone seems to have fond memories of the Concorde. New York to London in three hours. Luxurious amenities inside. Futuristic, memorable design. The Concorde had it all, but after its final flight 20 years ago, traversing our skies was brought back to subsonic levels. But aviation is getting faster, again. 

Namely, Hermeus, a U.S.-based aerospace and defense company, has successfully flown its Quarterhorse Mk 1 at Edwards Air Force Base, marking a significant milestone in the company’s push to make commercial hypersonic flight a reality. The test flight proves that America’s pace of aircraft development is changing, and quickly.

From drawing board to flight in just over a year, the Mk 1 is a bold demonstration of Hermeus’ “build fast, fly faster” development model. The aircraft itself is uncrewed and designed to handle the challenges of high-speed takeoff and landing, no small feat given its aerodynamic configuration tailored for Mach-level performance.

This wasn’t about speed alone. The mission validated a long list of systems: propulsion, avionics, flight software, thermal management, fuel handling, telemetry, and more. Even takeoff and landing dynamics were tested at scale. In short, everything worked. More than just hardware, the flight confirms the viability of Hermeus’ strategy, one that values iteration. 

“Mk 1 has redefined the pace of developing and flying new aircraft,” said Hermeus CEO and Co-Founder, AJ Piplica. “I’m incredibly proud of what our team has accomplished. We’ve proven the viability of our iterative development approach. But this is just the start. We have much more to do as the bar rises for the next iteration.”

The team is already moving fast on the next version. Quarterhorse Mk 2, roughly the size of an F-16, is being built now in Atlanta and is scheduled to fly by the end of the year. Designed for higher Mach ranges and real-world test missions, Mk 2 will help de-risk future uncrewed supersonic and hypersonic flight for defense customers.

Why it matters? Hypersonic flight promises huge benefits, from near-instant global cargo transport to next-generation defense capabilities. But the U.S. hasn’t fielded a full-scale supersonic aircraft program in decades. Hermeus wants to change that.

Its approach, “hardware-rich” development, means building lots of prototypes, fast. Teams get a full lifecycle experience. Designs improve. Tech matures. Talent levels up. And timelines compress.

In the words of President Skyler Shuford, “We’re rebuilding America’s lost capability to quickly develop brand-new, full-scale jets.”