Hermeus has moved a step closer to fielding what it describes as the “fastest unmanned aircraft flying today,” raising $350 million to advance its development and scale flight testing efforts.
Now with a total valuation of $1 billion backed by its partners, the California-based firm is scaling its program to a fleet of three F-16-sized aircraft, enabling simultaneous data collection across multiple test platforms rather than relying on a single prototype.
Its current testbed, Quarterhorse Mk 2.1, has completed its first successful flight, with supersonic speeds now said to be within reach for the program.
To support the next phase, the company is expanding its footprint with a new headquarters in El Segundo, California, while its Atlanta facility shifts focus toward production.
“This new funding lets us build multiple aircraft at the same time and scale our manufacturing capabilities, adding more hardware richness and robustness to our program,” AJ Piplica, Hermeus founder and chief executive officer, said.
“We are grateful for the support of our long-term partners who share our vision of building fast planes fast. Together, we’re bringing scalable, asymmetric capabilities to our national security customers.”
Hardware First, Testing Second
To cut down development timelines, Hermeus has adopted a hardware-first approach, prioritizing physical aircraft builds early in the program instead of spending time on simulations or conceptual designs.
The approach allows the team to iterate faster, with each flight test providing real-world data that cannot be fully replicated in digital models.
The company said this also helps validate aircraft performance in conditions approaching the high-Mach regime, as it works toward Mach 3 capability.
“Our mission is straightforward: build today’s fastest aircraft for the American Warfighter. The concept is simple but the task is monumental,” Hermeus stated on social media.
“We still have so much to learn, but we’ve earned the opportunity to swing big. And swing big we will.”
