"Neal Fulco" wrote in message
om...
To make
a long story short, I was wondering if some weight could be saved by
making a wing with a carbon fiber spar ( high strength, light weight )
with aluminum ribs and skins.

Why mess with aluminum? Check out the construction methods for the new
CAP-10C wing at http://www.capaviation.com/. I'm not quite sure where this
link will take you - you may have to drill down a bit to reach to correct
page.

Rich S.