I've often wondered why there isn't some small turbogenerator, or internal combustion based module for dropping into existing drone platforms to replace large lithium ion-packs, especially for long duration flights.
Heck, even a fuel cell would be far better energy/weight ratio, wouldn't it? And since they would be single or few use, you don't have to worry about poisoning the electrodes anywhere near as much.
Heck, even a fuel cell would be far better energy/weight ratio, wouldn't it? And since they would be single or few use, you don't have to worry about poisoning the electrodes anywhere near as much.