Brief Description: Rivet main wing spar mystery holes.
Image 1 shows me pointing to these mystery holes. Thes holes are under the tank skin between tank attach screws. The plans show the holes but on the page that calls out rivets it just shows the hole. No rivet call out. The instructions don't mention them either. The hole goes through the main spar and through the rib just like the hole under it. What's up with that?
Well, I counter sunk um and riveted them. Hope that's OK?