Hermeus Quarterhorse 2.1 completes first flight in New Mexico, aiming for SR-71 speed record

newatlas.com

Hermeus' Quarterhorse Mk 2.1 uncrewed aircraft completed its first flight on March 2, 2026, aiming to break the SR-71 Blackbird's speed record. The flight at Spaceport America validated the aircraft's systems. Future flights will gradually expand its speed envelope, with a subsequent version planned to attempt breaking the sound barrier. The Quarterhorse is a prototype for a hypersonic aircraft. The SR-71 Blackbird, a Cold War legend, still holds the record for the fastest air-breathing aircraft at Mach 3.32.


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Hermeus Quarterhorse 2.1 completes first flight in New Mexico, aiming for SR-71 speed record | News Minimalist