Quarterhorse Mk 1 flight redefines U.S. aircraft development pace and unlocks next steps toward hypersonic aircraft.

Hermeus has brought online the first phase of a facility that will address the critical shortage of hypersonic test infrastructure in the U.S.

This segment of the flight test campaign was completed in just 21 days and satisfies technical requirements for flight approval.

The testing marks the first major engine milestone for Hermeus’ supersonic Quarterhorse Mk 2 aircraft.

Designed, built, and integrated in just seven months, Hermeus’ Quarterhorse Mk 1 is the company’s second fully-integrated vehicle in the past year.

Hermeus has been awarded a contract by the Defense Innovation Unit (DIU) to mature hypersonic aircraft subsystem and mission system technology.

Raytheon Technologies today announced a strategic investment in Hermeus Corporation through its newly established corporate venture capital group, RTX Ventures.

Hermeus is excited to announce a $100 million Series B funding round led by Sam Altman. New investors Founder's Fund and In-Q-Tel also participated in the round alongside existing investors Khosla Ventures, Canaan Partners, Bling Capital, and Revolution’s Rise of the Rest.