(10-15 step 4):
I decided to go ahead and remove the blue protective film on the
outside of the tailcone skins just along the rivet lines. I moved
away from this practice on the other skins for time reasons, but I'm
doing it here because we'll be back riveting as much of the skin rivets
as possible and unlike previous parts we've back riveted, the tailcone
assembly will get pretty heavy, and moving it around on the table will
cause any small aluminum shavings to cause some decent scratches in the
skins... we know... we've already experienced them! So anyway,
after that was done I deburred the outside of the holes on the left
side skin. Also, evidentally when the longerons were being
drilled some of the aluminum shavings were trapped under the blue film
and caused some pretty good scratches around the holes. Normally
I wouldn't worry about scratches (within reason) on the outside of the
skins since they would be removed during paint prep... however, after
dimpling and riveting these scratches would be hidden under the rivet
heads. So, I used a roloc disc to sand them out, and since the
alclad layer was now removed I followed that up with a quick brush from
the alodine pen. You can see a couple of these holes at the top
of the pic.
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(10-15 step 3): After
removing the right side skin it was time to trim the triangular portion
from the front of it. The left and right side skins are identical
to each other until the factory puts the bends in the bottom portions
of them for the transition down to the belly skin. Then they
become dedicated left and right parts. The triangular portion at
the front of the skin fits under the lower rear of the baggage door,
and there is only a baggage door on the left side of the plane.
So, we get to cut this triangular portion from the right skin...
ta-da!! He did it! Now that didn't hurt now did it...
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(more 10-15 step 4):
While I'm having all this fun Angela's been deburring bulkheads,
ribs & stiffener holes. She's also got some stuff slow
cooking on the stove and the smell is starting to make its way out into
the garage… mmmmmm……
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(and yet even more 10-15 step 4): Suffering through the smells ;-) I deburred all the holes on the outside of the right side skins before calling it a night.
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