BE CAREFUL!!!!!!
The originals are 20 -30 years old. They (most) were drawn on vellum and have been subjected to many temperature changes. The originals have been through many, many old fashion blue print and blueline machnes - (Ammonia vapors, etc) through each generation of copying machines to the modern machine. Even the mylar originals can become distorted.
Please lay out all parts, dry fit, and adjust for perfect alignment and shapes.
Also, use a Quabeck or Selig Donovan airfoil, thicken to 14-15% ie. SD3021 -- instead of the flat bottom airfoils on the downloaded drawings.
There are several free on-line airfoil application.
I am now using CompuFoil on all new plans.
