my 1/2a biplane
A word about incidence. I'm not an expert on bi-planes, however I've been doing a lot of research before building my Smith Miniplane. All the self proclaimed experts say to set the top wing at -1 degrees and the bottom at 0. What this will do is on a landing, if the bottom wing stalls, the top wing would still be flying and it basically acts as a monoplane. With those thick airfoils you might not have this problem. L.O.L.