Orion,

Thanks for the quick response. Yes, if I were to do this I would address wing and canard issues from scratch. The 747315 airfoil you refer to in your technical paper seems a good match for the main wing on a canard design. It has a very low Cm and a low unflapped Cl. I was wondering however about the cp movement when the flow trips due to contamination. I have heard that cp movement is why Burt choose a turbulant airfoil for the LongEZ and later designs.

I made the reference to the Cozy just as an example. What I really want is 2 place plus baggage, again similar to the Gemini built by Ganzer back in the eighties (the "heyday" of the canard).

Structural design I can work through. It's the aerodynamics that I can't find much info on, lot's of reading between the lines seem's to be necessary. Can you recommend referance sources that might address this issue in depth? If I do go ahead with this concept I would install a sliding weight system for flight test much as Nat Puffer did with the Cozy.

As far as the "deep stall" I was refering to the control authority of the elevator system to fly the nose down if the aircraft were to stabilize in the nose high,low airspeed attitude some canard designs have experienced. I don't know which would be dominant due to prop slipstream effects, increased canard stall aoa or increased elevator effectiveness.

Again, thanks for your input.

John