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This one's for you Simon.

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  • 4 weeks later...

Not convinced this is real.

Freeze at 4:43 and it appears that the blades are simply bolted to a piece of timber with no means to drive them.

Also, try dangling anything with spinning discs attached and you'll soon find how powerful gyroscopic forces are.

There are ground based machines for this job - bigger versions of the tractor attachments used for trimming hedges. They would not take weeks to cover a few miles.

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