3 sources · first reported Yesterday

Hermeus has unveiled an air-launched ramjet test vehicle for high-speed experiments, which could provide a new way to test hardware in sustained high-Mach flight environments. The vehicle is designed to give researchers and developers a new tool for testing and development. Russia has also showcased its S-71 air-launched drones internationally.
The development of ramjet-powered test vehicles and air-launched drones has significant implications for the development of high-speed aircraft and unmanned systems, which could potentially be used for military or defense applications.
How this story unfolded across sources, oldest first.