October 23, 2011 - Mount the Xenos Wings!

Mounting the wings to the fuselage is always a big day for any airplane building project and today was the day for the Xenos.  Bruce and I had already spent half a day just getting to them over to his Shop.  We needed a big flat area because the wings on this plane are so long.  After all, it is a glider that has a motor. 

First task:  level the fuselage. 

  
Check.
  
Second task:  fit the wings together for the first time ever. 
  
Check.   The wings fit together perfectly.  Which was good. 
  
The next step is to connect the wings together on the fuselage.  But first we needed to cut a little bit of the fuse away to get the wing spars in.  No problem with a drill and dremel tool. 
  
And the left wing is in. 
  
And now the right.   So easy to say, but it actually took us a couple of hours to get this far.  In aircraft building, nothing is every easy. 
  
Now comes the fun part:  drilling the wing main and rear spars to the fuselage. 
 
First we made sure the wings were straight and aligned.  We used the digital level to make sure the wing dihedral was the same on both sides.  Then we made sure the distance from the middle trailing edge of each wing to the fuselage rear was equal.  All was well -- well, maybe we had to wiggle the wings a little.
 
With the wings where they needed to be, Bruce drilled the fuselage rear spar to the fuselage and to the wing rear spar tabs.
 
Bruce's sons, Nathan and Jake, helped us all day.  And we needed them.  Those wings are heavy! 
  
And hes in! 
  
The Xenos is really looking like a plane now. 
  

With the rear spars drilled, it was time to drill the front spars. 

The RV had eight bolts on each side, and the holes were pre-drilled.  But because the bolts were "close-tolerance" it was still no easy task to get them in.

With the Xenos, there is only one bolt on each side -- but it is a big one, 1/2" diameter -- and you have to drill it yourself.   We had bought special bits from McMaster-Carr for the job.  One bit was a 1/4" to 3/8" step bit, and the other went from 3/8" to 1/2".  

First Bruce drilled spars to 1/4", then to 3/8" and finally to 1/2".  

  
Bruce was in the cockpit at least two hours. 
  
It took lots of tools to get the job done. 
  
Still drilling.  There just wasn't much room to get the drill in there. 
  
Nathan and Jake giving their Dad moral support. 
  
We started at 10AM and finally finished up around 5PM.   But a major milestone in the project is complete.  Now Bruce and paint the wings and we can finish up the fuselage.  The cowl, spoiler cable assembly and a million other little details are left.  But the Xenos should fly in the spring! 
 
 
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