The Old Wing
The New Wing
Okay so the obvious difference here is the 12mm x 2mm CF spar caps, no more wimpy spruce. After looking at a load of shear web options I've chosen to go with full spar width, vertical gain, balsa shear webbing. The CF & webbing will be epoxied together & then wrapped with Kevlar ribbon (not shown). That should produce an exceedingly strong spar.
I've eliminated the sheeting aft of the spar as I don't think its necessary, will save some weight there. Will probably fully sheet the first few bays around the center though. Speaking of the sheeting, it now overlaps the spar caps instead of butting up to them, should provide a much larger bonding surface. The holes in the ribs are for the servo wires. Lastly I doubled up the thickness of the TE material that the flaps/ailerons hinge against. The old 1/8" TE scolloped after I shrank the covering.
I'm looking into wing joinery options, have a couple of ideas in mind. Anyway that's the plan for now. Questions or suggestions? Please fire away.