I stuck this here in building because it's about Building more than the actual model size.
First off I plan to pre color my silkspan  or tissue before I cover the wing.  But that does bring up a few questions.
Basically most wings are built with 1/16 or 3/32 or even 1/8 as the basic material.
I'm considering trying something totally new here.
Nothing bigger than 1/8 and the majority of the build will be 1/20 or even 1/32 material.
I am thinking though of using a 1/32 spar and a 1/32 top cap spar with 1/8 stringers to stiffen the edges of the cap.
I'm going to draw it up by hand later and try to include a picture of the drawing.
I hope that I'll be building in November. Have to have the ex send me a few things from my rv to start construction.
The big 3 questions that come into play here are.
How light can I build it?
Will elmers or tightbond watered down work?
and can I make it stiff enough to carry the tissue paper with out having it tear from stress?

I've used 1/8 sq spars top and bottom with no webbing, and 1/8 x 1/16 top and bottom further back.  1/8 sq trailing edge with diagonal 1/16 sq braces from the back 1/8 x 1 /16 spar to the trailing edge.  1/4 sq leading edge set on edge. w/ 1/16 ribs.  This on a 32 in span, flapped, full stunter with TD 049.  I was looking at the plan and rib pattern the other day.  May have to do another one as I really liked that airplane. 

Larry...I tried the search for "Bart Klapinski" and it asked me if I didn't want to search for "Barty jalapenos". I'm serious! But I did think it was pretty funny... Steve

Check out one of the Free Flight websites such as Hippocketaeronautics.com.  For the FFers who build Pistachio, Walnut, and Peanut scale rubber powered, or glow powered free flight models, precolored and preprinted lightweight silkspan on even 1/32" square structures is a way of life.  Preshrunk preprinted tissue, UHU glue sticks, or thinned white glue for attachment, and even some oddball ideas, like using an Acrylic floor polish like Future instead of clear dope.  Even ideas on using crtain brands of giftwrap tissue for sometimes intricate color schemes without the hastle and weight of paint.  In fact, one of the local FF club members, Dennis Norman,  has even had articles published on computer printing on the covering for scale models that includes panel lines, rivets, doors and access hatches as well as expected color schemes, insignas, and lettering.