i used to think they were toys but after owning one i have considered them now a lethal fun weapon.
on a 700mm class machine the blades turning at 2200 rpm have more energy than two 30-06 combined. the blades are pure carbon with a lead strip going down the leading edge and wraps arpund the root of the blade bolt hole.
50v electric systems pushing 13,000watts of power.
sorry if too much info but here gives you an idea of the power.
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