Wing Control Surfaces
I started with sanding the control surfaces to match the wing section (they didn't on their own as they're stock):
Next I chose where to install the flap hinges and control horns:
As I said I replaced the original horns with Robart's Super Horns as I felt them to be more suitable for a project of this size.
I wanted both the flap hinges and the horns to bite onto harder wood and to spread the loads onto a wider surface so I embossed the control surfaces (both the tops and the bottoms) and added 1/16" birch-ply plates:
Everything is then sanded again to match the wing section once more:
