Spar reinforcement fittings

[Flybyjim]

Just started the mount of the wings to the fuselage and was wondering if you need to paint the spar reinforcement fittings. Are they seen from the inside the plane once finished?

[jiott]

No they are not seen, but since they are steel (not stainless) they should be primered at least. I would leave the sides that get glued bare, and primer the exposed side. FYI- don't forget to mix in the microballoons to the Hysol to maintain spacing between the steel and the aluminum spar (dissimilar materials).