Hermeus Quarterhorse Mk 2.1 arrives at Spaceport America in Atlanta

?(Images from Hermeus LinkedIn)Hermeus announced on Wednesday that its Quarterhorse Mk 2.1 has been successfully delivered to Spaceport America in Atlanta. The company claims the Quarterhorse is the first high-Mach remotely piloted aircraft for national defense. It has a dedicated hangar and flight test operations that are designed to support the next step of the program. The Hermeus team will have to reattach the jet's tail and wings, run checks on ground operations and systems and test the engine on the ground as preparation for the Mk 2.1. RELATED STORIES: Hermeus brings first phase of HEAT facility online with engine testing Hermeus unveils Quarterhorse Mk 1 Hermeus begins testing on Quarterhorse Mk 0 prototype Hermeus states that each phase is to validate performance, operations and readiness. The company began testing the Quarterhorse series in 2023 with the Quarterhorse Mk 0 prototype and tested the Quarterhorse Mk 1 at Edwards Air Force Base in May 2025. The Mk 1 was powered by a GE J85 engine and was designed to demonstrate high-speed takeoff and landing capabilities. The Mk 2.1 uses a Pratt andamp; Whitney F100 engine and features a variable inlet and a delta wing design while being about the size of an F-16. The Quarterhorse Mk 2.1 is currently being manufactured at Hermeus' headquarters in Atlanta.