I have used (and reused) the calculator at geistware to do the math for me and it´s easy to use.
I did use designFOIL at the very beginning but have misplaced that right now so I don´t have any aerodynamic data to look back at.
So I will start of with the numbers from geistware and take it from there.

My two biggest issues right now is the weather and a tach that wont measure... [] But that has nothing to do with aerodynamics!