Originally Posted by
tartare
OK.
Intriguing to see, but am I alone in thinking this is insanely dangerous?
You put a Go-Pro on a rotorhead - for real?
Are you a licenced aviation mechanical engineer?
What if it had cut loose?
What if it caused said rotorhead to be slightly out of balance?
I'd be interested to hear further details.
You must not be familiar with the name
Chuck Aaron, the creator of the video. A quick Google search may answer your questions. The fact that his BO-105 is in the Experimental category supports the legality as well.