This morning we cut the wing ribs with our segmented hotwire. It worked great. We had a little manual shaping to do with a sanding bar, but it all worked out very well.
You may notice the white tube in the leading edge foam. This is a conduit for stobe and Nav light wiring if we decide to add it later. It is PVC pipe, but it is very light and has an extreemly thin sidewall. The total weight of a 4 ft section is only 2.6 oz! The total weight added to the plane is less than 10.4 oz!
The root rib is at -1 degree, and the tip is -1.56 degrees. The extra few degrees at the tip causes the tips to stall last. That should make the plane not want to drop a wing when it stalls.
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