Thank you for the information, very useful as it seems I need to add a little wing area to a design I am working on. Over the past year I have done at least a dozen sketches of ideas for a very modern pattern Biplane. So far that has been the easy part, now figuring out wing area, wing outline, airfoils, tail moment, thrust line, stab locations etc. while still maintaining the look I want is making things more complicated. Of course that is what makes it fun. Thanks again.