Section 9 - Elevators (riveting two skins to rear spars and ribs)

Slow yet steady progress on the elevators this week.  During the last few days, I riveted the left and right spars to 12 rib halves (not shown; the other half goes on the respective skins in a subsequent step) and 3 shear clips (2 for left elevator, 1 for right elevator). Shown below are the first steps to attach the skins to the rear spars and rib halves.

Clecoed then riveted top left skin to left rear spar and front part of trim tab hinge:

AD426-3-4 rivets that attached the hinge to the skin and rear spar were installed using pneumatic squeezer, while the AD426-3-3.5 rivets on the other part of the rear spar/skin were bucked:

Back-riveted rib halves to left top skin:

One rivet per rib near the larger forward flange needed the foot-long back rivet set (boing!).  First time using this tool, but glad I had purchased it since I would otherwise have had to buck each of those rivets in an awkward position.

Finished back-riveting:

Other side: