I wonder if you could use some kind of foam gun, which fires a fast hardening and sticky foam to jam up the motors/cover the blades. You still have the issues o

I wonder if you could use some kind of foam gun, which fires a fast hardening and sticky foam to jam up the motors/cover the blades. You still have the issues of (possibly heavy) drones falling to the ground, and lithium batteries in a fire. But it might be worth the trade-off for dealing with the wildfire quicker.