Originally posted by MonkeyBoy
I'd also like to know the calculations that Johng asked about. I like the idea of boost (trim) tabs reducing the servo torque required, specifically applied to giant scale 3D aerobatic planes. However, I'm not real keen on trying it on any of my giant scale aerobatics until I get some ball park formulas. Anyone have any ideas?
First they are Boost Tabs and not Trim tabs, big difference.
You would want to stay in the 6 to 10 % of the control surface.
Also, you should not go more then 30% of Boost Tab throw versus that particular control surface.
If you stay within these parameters, you will be all set.