Combining the technologies could improve efficiency enough to make hypersonic projectiles much more affordable.

The compact, liquid-fuelled ramjet engine uses a novel combustion technology called rotating detonation that offers significantly improved efficiency for high-speed flight at Mach 5 and beyond.

On January 14, GE Aerospace and Lockheed Martin revealed the results of a new ...

GE Aerospace and Lockheed Martin completed a series of engine tests demonstrating the viability of a liquid-fueled rotating ...

A self-propagating series of explosions, contained between the blades of a high-speed rotor, promises a leap in power and efficiency during hypersonic flight – provided this radical new engine can be ...

A series of tests have demonstrated the viability of a liquid-fueled rotating detonation ramjet for hypersonic missiles, ...

GE and Lockheed ground tested a new air-breathing hypersonic jet engine capable of powering missiles to speeds well in excess ...

GE Aerospace is advancing hypersonic flight with plans to scale up its dual-mode ramjet technology in 2025. To create a full propulsion system, engineers will improve sophisticated controls and use ...

The newly developed ramjet-assisted shell integrates a miniature ramjet engine inside a standard 155 mm artillery round.

Two revolutionary aerospace technologies collide as GE Aerospace and Lockheed Martin team up to demonstrate a new liquid-fueled rotating-detonation ramjet (RDRJ) designed to close the "efficiency gap" ...

TL;DR: A hypersonic dual-mode ramjet engine is a high-speed air-breathing jet engine capable of operating efficiently at both lower and extremely high Mach speeds by utilizing dual combustion modes.