After priming the R-912 counterbalance rib and R-913 counterbalance skin last night, I thought I would get those installed on the skeleton. First thing to do is check the plans for a rivet callout.
What!? No rivet callout? That means I have to think!
I grabbed the shortest AN470AD rivet I could find…AD4-4. That seemed to be good.
And an after picture. Wuhoo!
I squeezed these. I’m still not totally happy with my squeezers ability to squeeze AD4 rivets.
Then, I grabbed the counterbalance skin and clecoed it on. My squeezer is only a 3″ yoke, so I can’t reach any of these holes.
Another picture of those two clecoed on the skeleton.
Finally, I got the left skin clecoed on to check for fit and complete any remaining edge-finishing required before riveting.
To be determined: whether I should edge-roll the forward edge of the rudder skin where it overlaps the counterbalance skin.
Two rivets set today. Half hour total.