Loud you are a big help to me, Thanks. I also have access to Cadworx which will let me actually draw the parts and test fit them. It does make the project a little reliable I guess but I have been doing autocad so long, I don't see any problems. I see what you meant about the drawings not being "true" . I am seeing that on this Cessna vertical stabilizer also and haven.t checked the horizontal or elevator yet..