Saturday, December 2, 2017

Wings, Wing Ribs (Part 12)

I’ve put in a couple of small work sessions over the past few days, but didn’t enter anything on the site.  I will catch everything up on this post.

In Part 11, all the Ribs were clecoed to the Left Main Spar and the appropriate holes were final-drilled or match-drilled #12, #30, or #40 according to the plans.  All those holes were then deburred.  After that was complete, I marked all 14 Ribs to make sure they are installed in the same location later in the final assembly.  

Also during Part 11, the Flap Hinge Brackets, Flap Hinge Ribs, and Inboard Wing Ribs were match drilled #30.  All of these holes were deburred and the edges of the thick Flap Hinge Brackets were cleaned an prepared.  

That catches up on the couple of small sessions and the site is now up to date.  

So, moving on to today’s work.  In the excerpt below, you can see all the Snap Bushings that need to be installed in the Wing Ribs.....29 in total.

There are three sizes of Snap Bushings installed in the Left Wing during this portion of the build:
SB375-4.....holes step drilled to 3/8
SB500-6.....holes step drilled to 1/2
SB437-4.....holes step drilled to 7/16

Eight of the Ribs had to have an additional hole drilled in the web of the Rib according to the except below.  The Upper Aft Systems Hole needed to be drilled according to the measurements shown below.  Additionally, the Ground Lug Hole had to be enlarged to #19 on the W-1010-R Inboard Wing Rib.


This brings me to a point to start final assembling parts and pieces.  However, prior to doing that, I need to treat everything with Alumiprep, Alodine, and Akzo Epoxy Primer.  I will start that process tomorrow.