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From: BurrMan
"""""""""""""There are settings to change the thickness of the blade at the root and tip, then another slider for the curve between those"""""""""""""""""""
These 2 values actually relate to each other mathematically in airfoil design. The changes have to be planned.
Changing the chord length from 1 station then back again right After it within just 3 stations will be a no no....
You can check your chord lengths. They usually taper from root to tip.
I think the trick is to choose a "ratio" as a percentage of lift coefficient, then stick to that as you change the thickness or chord length (Or Both)
Choosing this chactoristic allows you to pick and choose a change you want, but maintain the aerodynamics as you go...
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