It may be that the Skycrane costs more per litre to deliver water to the fire but is there a factor that the larger the volume dumped in one hit the greater the efficiency?
I'm not in the game myself, but I have heard that with greater volumne the extinguishing factor increases dramatically. Can anybody confirm or deny this? Is this is just another marketing ploy that removes the smaller machines from the resource pool so that it becomes the domain of the big players?
If any of you can provide the formula that they use to derive this, if it is true, I'd be interested to hear it.