Hi Cees,

I couldn't agree more.... with your last point "Have Fun!"

That is the point. It is also why we do this. Will the covering tend to "flatten" the airfoil over the holes in the leading edge D tube and change the airfoil slightly in that area? Yes. But more importantly will it change for the good or the bad? Who knows. This is why we try these grand experiments.

With over 40 years building & flying experience I have seen many things that do not always make sense. Small changes measured in fractions of an inch that dramatically altered flight charecteristics. On the other hand I have small 1/2A foam combat delta wings that are a flat wing with a small leading edge sanded in that fly wonderfully. How many times have I done full wing, tail, and fuse CG calculations downs to the last 1/64" only to find that in real life the plane likes the CG in a different spot. It's part of the grand experiment and why we love the sport. Otherwise there would be no need for test pilots. In this sport we get to be the designer, builder, and test pilot all in one and still survive the ones that didn't work out so well.

So to David and iforbes, enjoy the experiment, the mystery of flight, and above all, as Cees so aptly stated, Have Fun!

Bill