I have followed Bill Evans as long as I have been flying models , about
25 years now . I love plank wings I think think they fly like birds .
I have been working on my own design for some years now based on
the work done by Bill . I still have not built but want to build a 540 .
My thanks to the author of this thread I have not had time to read it yet
but I plan on spending some time here .
For my design I have strayed from the Simitar airfoil and modified a Faval
airfoil . The wing I am holding has a Rino Rudder on it that I am experimenting
with , I like it