Aircraft
Propulsion
Payload
Company
Newsroom
Careers
shop
Aircraft
Propulsion
Payload
Company
Newsroom
Careers
shop
Aircraft
Propulsion
Payload
Company
Newsroom
Careers
shop
Aircraft
Propulsion
Payload
Company
Newsroom
Careers
shop
01
Product

Payload Carrier

Hermeus is developing Ramjet-X, a low-cost, expendable, ramjet-powered payload carrier designed to fly at high-Mach speeds over extended ranges.

Propulsion
Once released, Ramjet-X transitions to ramjet-powered flight, enabling sustained high-speed.
Launch Platform
Designed to be carried and launched by Mk 2, using the aircraft’s reusable high-speed capability.
Airframe
Delivering affordable, scalable flight through a simple ramjet engine, automotive-grade components and a welded metal airframe.
02
Payload

Integrated
High-Speed Systems

Ramjet-X is designed to be carried and launched by Mk 2, using the aircraft's reusable high-speed capability to provide the speed and altitude needed for Ramjet-X launch. Once released, Ramjet-X's ramjet engine ignites, enabling sustained high-speed testing across extended ranges.

MK2

Reusable
High-Speed Aircraft

Ramjet-X

Range Extending Ramjet
Payload Carrier

03
Propulsion

Low-cost, High-Mach Flight Testing

Hermeus is testing the Ramjet-X ramjet engine at its HEAT facility in Jacksonville, Florida, while vehicle development is taking place at its El Segundo headquarters. Integrated testing is currently planned for 2027.