Tatoo, I have broken enough equipment to keep a small manufacturer in business:-) A friend at the local field landied a profile machine and as were were talking he turned it over. The exhaust was directly on the throttle servo, it was coated in oil and working fine. I am certianly impressed with modern equipment, I wish it had been so years ago. Sigh........

I trust your data point, you can't fly that much without having a great feel for your airplanes. Again I am impressed.

I am going to try the airfoil on a yard flier just for the heck of it. I make them out of 2mm white foam and can build one almost as fast as the plastic you use. I have used 2mm foam cambered and flat airfoils to date. I have 7 waiting to fly if it ever gets warm so might as well add to the fleet. A damaged heart has stopped flying in the winter. Thank goodness for Realflight to cut some of the edge off the "gotta fly" shakes.

Again, very good work on your project and excellent reporting, very enjoyable to read and look at. Have you posted it on the SPAD site.