Wing Kit

Fitting the Right Wing Lower Skins

 

04/11/04, 7.5 hrs

 

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.

 

       


Last Updated: April 15, 2004