Started from the right side of the step rib group so that I could move the ones to the left over to maximize the room I had to rivet. Even with that extra room, some of the rivets needed to be hand riveted. A lot of force is required to hand rivet - makes for a very loud snap as the mandrel is pulled and snapped off!
The top rivet connecting each of the step ribs was too tight to put a rivet gun straight in, so I bent the rivet mandrel and used a homemade adapter to ensure the rivet was driven flat.
This is what that looked like just before riveting it. With it bent out like that it was easy to slide the rivet gun over the mandrel.
A little bit clearer view.
And they are all riveted!!
NEXT SESSION:
- Rivet the rear support channel to the rear spar.
- Prepare for wiring...
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