I was suggesting a wind tunnel would show the actual laminar air flow, lifting areas, bi-lateral separation, pressure areas and turbulence, etc that the T-CAN. can have or induce when attached to an airframe. It certainly will not impede experimental progress through trial and error. Yes, yarn is simple enough, as it gets the job done on sailing sheets on sail boats and other engineering concepts of motion.

Dave does wonderful work and the reason I pick his brain from some years to another.

However, I was just thinking of a larger plexy glass box construction and a large Shulman Electric Ducted fan motor and a colored smoke stick to ignite, perhaps a make shift wind tunnel,..LOL.



Respectfully,

bholsten