Since I used round tube for the skylight structure, I’m welding little tabs onto the tubes. These tabs will get nutplates and will hold together the aluminum-acrylic-steel sandwich.
I originally sized the tabs so that they would fit a standard nutplate, but then I realized that I really don’t need to install nutplates on the tabs that are accessible from inside the cabin. I’ll need to have someone sit in the cabin to hold the nuts during installation and removal of the skylight, but that should only happen every 5-10 years or more.
The flap handle also gets a reinforcement for the slot that the aluminum arc passes through.
Since Tabitha was there, she took a picture for me.
Tabitha also came out and cut more seat foam today.