Saturday, June 12, 2021

Wing Root Cuffs and Cap Strip

I continued on fabricating the wing root cuffs today. I finished up the fitting of the left cuff and match drilled most of the holes in the cap strip. I also drilled the access holes for the wing pin on the left side. I will have to get new wing pins as these are too short to be able to put a clevis pin in when they are installed. The pin will have to stick out below the close out on the bottom to be able to access it with a pin.

I filed the root cuff to give the slat some room when closed.

I have to match drill the pin holes on the cap strip and the root cuff. There is a little overlap and they're not centered on each other.

Only thing left is to install the lock plates and screws.

The wing pin is too short, it will have to be longer and stick through the hole in the bottom close out.

Getting ready to reinstall the right butt rib and begin work on fitting the right cuff. I just used the left cuff as a template for the right cuff. Drew a line around it with a marker and cut it out on the band saw. Then just flipped it. I left it a little long in the dimensions so I could trim it to fit.

Starting on the right root cuff. A screw head snapped off on the top middle position when screwing it in place after match drilling the hole in the cuff. So, I'll have to pull the entire front head rack piece so I can replace the lock plate. That will be easier than trying to drill the screw out of the lock plate. Also less chance of screwing something else up while attempting a fix.