not sure if this is the kind of thing your looking for. Used this page to design my very first plane, flew great.
I'm one of the odd balls, only been flying for about 8 months, all my planes have been scratch built from my own designs.
Over the weekend just designed my next project, 60" span motor glider, built up fuselage, V-tail on a carbon boom and a KFM Dollar Store foam wing, 20" flat centre section, 11.5 degrees dihedral on the 20" tip panels.
Just trying out as many styles of plane as I can until; I find what I really like.
So far built my trainer, a stick, a 32" wing and now this glider. All have been KFM wings.
The 32" wing was just a guessing game, drew it out until it looked right, plugged it all into the online wing cg calculator, built it and it flew.
I do preliminary design using RCCad then transfer it over to a real cad program for the templates etc.