[OldSchoolJohnny]

As someone who has personally used a chainsaw for many years I saw that video with interest but realized quickly it's faked. It takes a substantial amount of force on a chainsaw to keep it cutting. A real chain saw is a relatively heavy device. I see no evidence in that video that the chainsaw is in fact cutting anything while only under the forces afforded by the drone. Every cutting shot is from closeup and I did not see a single shot of it cutting from a distance. Either it's very poor choice of editing since it doesn't show what the whole video purports or it's a fake.

[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.

[oliwary]

I also believe some scenes are faked - at 1:30 the chainsaw is turned sideways instantly, a maneuver which should not be possible with the gimbal setup they are using, and especially not without moving the center of mass way of balance.

Fun video nonetheless! :)

EDIT: Although, at 1:54 the rest of the copter can be seen after the cutting. Strange that they would not include any outside view of the cutting or even the chainsaw in a sideways position though.

[debrangy]

I believe they were using a DJI industrial, which as a takeoff weight of 11kg, which is more than enough power to carry a small chainsaw.