ORIGINAL: noveldoc
Make a root rib and a tip rib. Mark and drill holes to exactly center ribs properly.
Cut rectangular rib blanks and drill matching holes, 1 blank per rib. Fasten ribs together, usually with a long bolt. Carve and sand until the outline flows smoothly from root to tip.
Separate and voila, tapered ribs.
Tom
This is the process Jim Whitley describes in his Daddy Rabbit article. It works...
Brian