Hermeus flies Quarterhorse Mk 2.1 and closes $350M Series C to scale hypersonic production
Hermeus completed an uncrewed maiden flight of its Quarterhorse Mk 2.1 from Spaceport America in early March — its second new aircraft type to fly in under a year — and simultaneously closed a $350 million Series C to accelerate production, relocate HQ to Los Angeles and push toward mission‑ready high‑Mach platforms.