Hermeus Wins US Air Force Investment After Demonstrating Mach 5 Engine
Hermeus Wins US Air Force Investment After Demonstrating Mach 5 Engine

Hermeus Wins US Air Force Investment After Demonstrating Mach 5 Engine

Hermeus Corporation, the aerospace company developing Mach 5 commercial aircraft, has partnered with the U.S. Air Force and the Presidential and Executive Airlift Directorate to work toward hypersonic travel for the Department of Defense. The effort is focused on rapidly assessing modifications to Hermeus Mach 5 aircraft to support the Presidential and Executive Airlift fleet. This award comes under an Other Transaction For Prototype Agreement Direct to Phase II contract through AFWERX after Hermeus successfully tested a Mach 5 engine prototype in February 2020.

Brigadier General Ryan Britton, Program Executive Officer for Presidential and Executive Airlift commented on the program: “Leaps in capability are vital as we work to complicate the calculus of our adversaries. By leveraging commercial investment to drive new technologies into the Air Force, we are able to maximize our payback on Department of Defense investments. The Presidential and Executive Airlift Directorate is proud to support Hermeus in making this game-changing capability a reality as we look to recapitalize the fleet in the future.”

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Hermeus Wins US Air Force Investment After Demonstrating Mach 5 Engine
Hermeus Wins US Air Force Investment After Demonstrating Mach 5 Engine


Preceding the award, the Hermeus team designed from scratch, built, and successfully tested a Mach 5 engine prototype, in only 9 months. Early integration of unique U.S. Air Force requirements for high-speed mobility and evaluation of interfaces between high-speed aircraft and existing communications, airport, and air traffic control infrastructure lays the groundwork for a seamless transition to service. Additionally, Hermeus will prepare test plans to reduce technical risk associated with these modifications to support U.S. Air Force requirements.

The test campaign both served as risk reduction for Hermeus’ turbine-based combined cycle engine architecture and illustrates the team’s ability to execute with schedule and funding efficiency. “Using our pre-cooler technology, we’ve taken an off-the-shelf gas turbine engine and operated it at flight speed conditions faster than the famed SR-71. In addition, we’ve pushed the ramjet mode to Mach 4-5 conditions, demonstrating full-range hypersonic air-breathing propulsion capability,” said Glenn Case, Hermeus’ CTO.

Hermeus Wins US Air Force Investment After Demonstrating Mach 5 Engine
Hermeus Wins US Air Force Investment After Demonstrating Mach 5 Engine

Hermeus is a venture-backed company with the long-term vision of transforming the global human transportation network with Mach 5 aircraft. Hermeus is making room for US in the race towards introducing high-speed hypersonic flight to the masses. Using lessons learned from their time at new-space companies, including Generation Orbit, Space X, and Blue Origin, founders AJ Piplica, Mike Smayda, Glenn Case, and Skyler Shuford founded Hermeus in 2018 to answer the call to innovation in commercial flight.

At Mach 5 – over 3000 miles per hour – flight times from New York to London will be 90 minutes rather than 7 hours. High-speed aircraft offer disruptive differentiation where the main metric is speed, rather than plush seats, which has historically resulted in economic expansion. Mach 5 aircraft have the potential to create an additional two trillion dollars of global economic growth per year, unlocking significant resources that can be utilized to solve the world’s great problems.

Hermeus Wins US Air Force Investment After Demonstrating Mach 5 Engine
Hermeus Wins US Air Force Investment After Demonstrating Mach 5 Engine
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