Originally posted by rorywquin
I have a Multiplex stand which works well ! You will be surprised how much difference 1 mm makes. So if you have a hotliner which only has a cg range of about 5mm you could be way off using finger tips.
It is much easier (and more accurate) to adjust the the cg with the aircraft on a stand.
1 mm? So how far does a full tank of gas move this C.G.?
I just use the finger tip method, or use two pencils with the eraser tips ground to a point. put each pencil on your C.G target marks, then fly it, get it trimmed and adjust accordingly. depending on how sensitive I want it to fly.
Nose heavy for stability. (Just don't dive or loop it) tail heavy for Radical, touchy and or almost impossible to fly. LOL.
Anyway after the finger tip balance and initial flight, I adjust the Weight in increments until I am satisfied with the Balance.
these things cost Enough money without having to buy all the tools to fill a shop! LOL.
Just my 2 cents.
Smoky.