Mike

Thanks for your post. I have been a frequent visitor to your site and it has provided me with the motivation to continue with this part of my project.

Lou W

Thanks for your input as well. As I intend to use the model as a tow plane, the performance characteristics that you describe are not sub-optimal and serve to encourage me as well.

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As I have an already made built up wing to start with - the airfoil is a NACA 2415 - my intention is to use the add-on procedure. Gordon Whitehead's book on Scale Aircraft includes the attached diagram which I see as eminently doable.

Does anyone have any experience with this particular approach, or comments on its viability?

Gudmund