To trim the root ribs, I made a tracing of the rib pattern. I used Matthew's hovercraft windshield, some ply, 3 saw horses and a trouble light to make a light table.
![Image](http://i198.photobucket.com/albums/aa72/Aerowerk/B970EEF3-1211-487C-97A6-3737DFFF0422.jpg)
The key things to trace were the tooling hole, chord line, and trim pattern. I found out after I made two patterns that all 4 ribs, 2 forward and 2 aft have an identical pattern. Also note I used a hole punch where I had marked the tooling hole.
![Image](http://i198.photobucket.com/albums/aa72/Aerowerk/7965A6AA-EF39-4E1D-A49E-F44851B6792B.jpg)
Adam finished drilling aft spar parts. We have some deburring and edge finishing to go yet.
![Image](http://i198.photobucket.com/albums/aa72/Aerowerk/B1F2888B-B201-44C1-9A73-ACF93CC48F27.jpg)