Originally Posted by Alex Voicu

Hi Eduaero,
I suppose you can replace the built-up wings and stabs with foam core construction. The shape would have to be modified a little, since you can't have a curved leading edge on the foam cores.
For the fuselage i don't think you can replace any of the balsa frames with depron, at least not without increasing the thickness significantly to have the same strength. This would require a complete redesign of the structure in the area of the depron parts due to the large number of interlocking parts.