Firefighting drones in action - GIF

[Frank S]

Good points Frank.

And, thinking this out a little farther, if a power cord were run up along side the hose, there would be no need for batteries and larger motors could be used. Maybe they already did that and it was just me jumping to the conclusion that they were battery powered.

And you could connect the controller via wire as well to eliminate any issues with RF controllers. Fly by wire in the true sense.

Yes the fly by wire thing would or could be a nice feature kind of defeats the purpose of it being called a drone then but it is already a tethered fire suppression delivery device as long as it has a hose connected to it. However, any drone powerful enough to carry the weight of a hose and column of water aloft while counteracting the pushback of the nozzle, could just as easily be used to carry a rescue responder and, or a means of transporting persons to the ground from a roof top. Being tethered to an umbilical could be a hinderance in situations like that though. I imagine the size of the conductor to carry enough current to power the pods might weigh nearly as much as a battery pack given the possible heights it could be required to be used. Spare battery packs could be mounted on its service vehicle, disconnected and changed out as easily as a portable hand drill just on a slightly larger scale.