I started work on the large oval hole and the tail relief. On one of the attach plates I decided to drill a series of 3/32 inch holes around the perimeter of the large oval hole. Next, I used a coping (sp?) saw to cut between each of the holes and get a rough opening. Finally, I used a sanding drum in the drill press to start cleaning up the oval. I also used the band saw to cut the tail relief.
Welcome to my builders log for Sonex S/N 767. It won't be as big as a real 767 but if you scale the speed I bet it will be almost as fast
Dave's Sonex Builders Log 