March 2, 2013 - Glueing the Spar Flanges

With the spar flanges all scarfed and tapered, I was ready to glue them together on the newly completed spar table.  I did a pair at a time.  I started with the upper wing, top spar flanges:  forward and aft.   
 
I applied T-88 epoxy glue to each side of the spar flange scarf being glued together.   I made sure the area was wrapped in wax paper so it wouldn't get glued to the spar table.  I used 2" x 3" pine as spacers between the oak clamp down strips and the spar flange.   I used clamps to hold the spar flanges tightly to the steel angle walls. 
 
A close-up.  You can see how the spar flanges are join together with the 9" scarf joint. 
 
My first pair of upper wing spar flanges are complete!  They are 21 and a half feet long. 
 
From another angle.  Per the plans, I let the glue dry for 24 hours.   So I could do one pair a day. 
 
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