Hermeus, aerospace company developing Mach 5 aircraft, announced on August 5 the signing of a $60 million U.S. Air Force partnership for flight testing its first aircraft, Quarterhorse. Quarterhorse will validate the company's proprietary turbine-based combined cycle (TBCC) engine, based around the GE J85 turbojet engine, and is the first in a line of autonomous high-speed aircraft.
In 2020, Hermeus was selected by the US Air Force to study how Hermeus' Mach 5 aircraft can support the objectives of the Presidential and Executive Airlift Directorate, whose fleet includes Air Force One. (Picture source: Hermeuss)