On most brands of newer carbon fiber blades it’s really not necessary as they are pretty well balanced out of the package. I still check cg on align blades or if I ever pull 2 blades that didn’t come in the same package. I’m not sure if they still make this balancer or not. I think it’s made by thunder tiger but I will check to make sure when I get back home in a little bit.
Centre of gravity importance is a myth. Heli will fly on one blade and a piece of lead on the other blade holder. So long as the moment force is the same. Just use the balancer. Also have leading edge on the same side. It is very important that blades are precisely in line. This is easy, just press the two leading edges up against a table edge or whatever. No problem if the blades are not exactly perpendicular to balancer axis, so long as they are in line. Out of line, one will effectively have a different moment arm…. Bad. It’s all physics.
I disagree. Most brands of blades on the market have the same CG, weight, and balance. If CG is off it will in fact cause tracking issues of the blades. As I said this isn’t much of an issue anymore IF blades aren’t mixed from 2 different packages. Yes the helicopter will still fly but will cause vibrations and less accurate maneuvering due to tracking problems.
