Riveted VS skin to front spar, center rib and then to rear spar, top and bottom ribs. This work went very quickly. Perimeter rivets were set with the pneumatic squeezer. I did make one mistake in setting one of the rivets with the squeezer. I did not have the bottom die positioned properly and it caught on the rear spar reinforcement and the top die marked the skin. Silly mistake, but you find out quickly how unforgiving sheet aluminum is. Hopefully the mark can be worked out and dressed when the plane is painted. Next assembly is the rudder!
