im about to sheet my wing on the ss 60 and suddenly had the feeling i was forgetting something. thinking back 20 years ago while building a ss 20 wing, i could have sworn i had to glue pieces of sheeting between the upper and lower spars ( grain running vertically) to create an i-beam effect for rigidity.
anyway, i checked the manual and its not there, nor is the material supplied. does anyone remember this practice and is it still used today? should there be flex in the wing to prevent them from folding or simply breaking? or, should i head to the local hobby shop for some balsa before i sheet the rest of the wing?
by the way, i think this piece was called "webbing", not sure though. thanks for your time and interest.