December 6:
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| Parts prep left elevator. Dimpling of all parts completed. Next step will be to countersink trailing edge and rear spar. |
December 8:
| Parts for left elevator scuffed, deburred, primed. Riveted end ribs. I had to order a new end rib because I damaged the rib with pneumatic squeezer. Arghhh…. |
December 9:
Re-did
the rudder stops and horizontal stab attach bar support angle (Section
10-04). The original parts were not
dimensioned correctly and I wanted them to be right. The attach bar was almost right - probably
would have been fine, but the parts are not expensive. Happy with the
replacements. I prepped all parts for
Section 10-10. LOTS of deburring,
scuffing etc. Starting this process
for Section 11-11. Finished too late
to prime parts. |
December 10:
Primed
parts section 10-10. Riveted these
parts together. After riveting, I
realized that I had used AN470AD4-7 instead of 4-8 for the 18 rivets
attaching the horizontal stab attach
a. Carefully measuring the rivet head
dimensions, rivets did not meet mil spec.
So I drilled them out and replaced with proper size rivets. Very carefully. New process for drilling out the 1/8"
rivets for me: Drill all the way
through with 3/32 bit, then drill head with 1/8 bit, break off head. Drill through again with #36 bit. Then use modified dikes to pull out from
shop head size. Avoids damage to the
rivet hole. Touched up primer on the
area, all good. Deburred parts for
Section 10-11.  |
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