Yea, it mostly works. It seemed slightly inaccurate (yes, i pushed it to 41). Maybe it could also use previous velocity to calculate acceleration?
Anywho, don't know if anyones made this one (I'm new), propellerhead? Instead of a hand saw, make the neck activate propeller on your head, and make it also lift you in the direction of your upright head. Make it so it can barely counter act gravity, else I suspect it'll be more like airplanes than heli's....but airplanes can be fun too...