[topspin]

> Only tricky thing is if currents induced in motors

Many of the drones in the Russia-Ukraine war are powered by ICEs. I'm thinking of Ukraine's long range drones presently deleting Russia's refinery distillation towers, fixed radar installations, parked aircraft, ammo dumps, etc.

Those engines are not purely mechanical, but purely mechanical engines have been widespread and are still commonplace today. A 2-stroke diesel being one example, but even gas turbines can be purely mechanical. So one can imagine such an adaptation in response to microwave countermeasures.