Ukraine Deploys World’s First Hydrogen-Powered Drone into Combat to Dodge Russian Thermal Sensors: Ukraine’s new reconnaissance drone uses hydrogen fuel cells to fly 12 hours with a “negligible heat signature.”
https://www.zmescience.com/future/ukraine-world-first-hydrogen-drone/
2 Comments
Interesting, it must be extremely efficient if it lacks much of a thermal signature
12 hours at what ground speed? You go really far into the lines; with local navigation it would be unstoppable.