Horizontal Stabilizer work continues

I haven't been good about posting information about my progress, but fortunately I have been good about working on the horizontal stabilizer.  At this point, I'm nearly finished with the HS, so I will make an entry to reflect the things I have done.  Here are some of the tasks I have completed: 

• Notched left and right HS-702 where bends will be located (a rat tail file and a pair of aviation snips makes this a straightforward task - much easier that a unibit).  Bent tabs 6 degrees.
• Tapered front spar reinforcement pieces (HS-710 and HS-714), bent them 6 degrees, and match drilled them to HS-702.
• Clecoed left and right HS skin to understructure and match drilled all holes.
• Disassembled everything, prepped and primed spars, ribs, and skins.
• Riveted spar reinforcement bars to rear spar.
• Riveted HS skeleton.
• Began riveting ribs to skin.

First rivets

I prepped the HS411PP elevator hinge bearing, and primed with SEM primer.  Here is the procedure I use to prepare parts for priming:

• Deburr with single or double edged deburr tool
• Use emery cloth to remove any irregularities on edges or surfaces
• Scuff with maroon Scotch Brite pad
• Clean with acetone.  Following this step, part will only be handled with gloves to prevent contamination of surface.

Bearing ready to be installed in HS411PP hinge bracket

I back drilled the HS411PP bracket (only one side has the holes pre-punched) and installed the completed bearing.  I used my pneumatic squeezer to squeeze the AN470AD4-5 rivets, which turned out well.  I know some builders use -6 rivets here, but the instructions are very specific here, so I used what was specified.

Completed hinge bearing assembly