Trigger and all:
Originally posted by tiggerinva
The pack of TF power points I got from TH needed so much work I'm not sure I'll bother with them again.
People say that MAS shouldn't need to be balanced...
I do, however, have a MAS 3-blade 8x6 which definitely looks like it has a heavy blade...
Your experience with Top Flight "Power Point" props is the same as mine. TF seems to be the worst of all brands, in regards to balance. And I don't remember ever having any prop balanced straight out of the box. Of any brand.
In the ten odd years since I've started balancing props I have had no radio failures. At all. I have had servos give a problem, but always due to what our British friends call an "Arrival." I call it a "Hard landing," but some unkind people call my hard landings crashes, requiring servo gear replacement to correct.
Balancing a three blade is a little harder than a two blade until you get the idea, then it's jus tthe same, except for one more blade.
Three Blade:
1) When the prop comes to rest, there usually will be a high blade, and a low blade. with the third at an intermediate angle. If it comes to rest with a blade straight down, skip to step 3).
One blade straight up is the most trouble. You have two blades that are equally heavy. Pick either low blade, and lighten it until you have the other heavy blade hanging straight down, giving two equally light blades. Go to step 3).
2) Consider the high blade as "A" and the low blade as "C." The other blade, obviously, is "B."
Lighten blade "B" until blade "C" hangs straight down. Now blades "A" and "B" are the same weight.
3) Lighten the lower blade until the prop is balanced. You have finished.
Additional note: If the prop has to be reamed, do it before balancing.
This is my way, and it works for me. Hope it helps.
If you are man enough to fly a twin,
. You've twice as many places for vibration to come in.
Bill.