[johansch]

That is a pretty substantial drone they are using - it looks like the kind that can carry RED ONE cameras, which are about the same weight as the light weight chainsaw they used in the video.

Regarding the amount of force required to cut things: they are only cutting snow and small tree branches.

I think you are being overly paranoid here.

[fezz]

Red One with lens was about 13-15 lbs although I don't remember a Red One used on an octocopter. Red Epics were out by then which brought the weight down to under 10lbs.

Chain saws without blades are around 10 lbs?

[wdmeldon]

And balloons. If this was fake, I'd imagine they would have made it more impressive.