Step 1.   Cleco the spar assemblies to their respective ribs and skins.  

03/24/07  -  30 minutes

Step 2.   Using the blind rivets, rivet the front spar to the rib flanges for both left and right. 

03/24/07  -  1 hour

Step 3.   Rivet the skins to the front spars, left and right, except for the rivets that are shown in the figure.  You'll need these open in order to get inside for the tip ribs and elevator gussets. As you can see, I used a hand, not pneumatic squeezer.  Good for the ol' handshake.  I also find it a pleasent experience.  Of course, these are only 426 3-3.5 rivets.  Not a whole lot of effort needed. 

03/24/07  -  2 hours