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Today's tasks were to
skin the wings. First thing on the laundry list was to drill
the wing walk doubler skin. Van's instructions are wrong here.
They call out for fabricating the wing walk doubler skin
out of AS3-025 x 9 3/8 x 26. However, I do not have any of
that material. Van's now sends AS3-025 x 10 x 48 to fabricate
you wing walk doubler plate.

Simple task of drilling
through the W-702 skin and clecoing the wing top skin and wing walk
doubler to the table to hold it in one place.

Once I was
done with that, I proceeded to place the top skins to the skeleton.
This was pretty straight forward and the holes lined up really well.
I had to do a little rib massaging to get all of the holes lined
up, but it took very little "mechanical encouragement".
Once everything was cleco'd in place, I began the very tedious job
of final drilling all the holes on the top side of the wing to size
(#40).

Just a picture
of the bottom of the wing before putting on the bottom skins.

Here is a pict of the
bottom skins cleco'd onto the wing skeleton. These also lined
up very well. However, I started asking questions like; "How
do I rivet those skins to the ribs?" It appears that
some of those holes are going to be very hard to reach with a bucking
bar. Again... drilled all the holes in the bottom skins
to final size (#40).

I was
ready to quit for the night, but then I got my second wind and decided
to fabricate the leading edge / fuel tank cradle. I just traced
around one of the leading edge ribs and cut them out with a scroll
saw. Van's states not to spend to much time making this real
accurate>>> So I didn't.

I spaced
the vertical cut outs 26" apart and used 2 2" x 4"
pieces of lumber to support the vertical cut outs for additional
stability.

Here is the
leading edge skin in the cradle. Looks like it doesn't fit
to badly. I will line the cradle arms with some soft material
when I pull the vinyl off the outside of the skin.

Just a different
angle.

Here is where
I left off for the night. I started to assemble the leading
edge, but I ran into some problems. I cleco'd the top of the
skin to the rib and my holes lined up pretty well. However,
this is the bottom side of the leading edge and rib. As you
can see, the holes are off by more than just a little bit.
No matter how I tried to position the ribs, I could not get these
holes to align. So I quit for the night. Maybe it will
become clear to me after I sleep on it.

Tomorrow, EAA chapter
80 is having their monthly meeting. I am going to try and
go up there to meet some builders and see if I can't line up a EAA
technical counselor to inspect my plane as I progress along. |