Rear spar assembly

4.0 Hours

Final drilling inner rear spar doublers full size

First thing was to file and deburr the rear-spar and all doublers. I was missing the outer doubler, so I ordered it from Van's. Here are the inner doubler's cleco'd into place. Next step was to drill em to final size

Middle doubler full size

This doubler is clamped into place for drilling. Also it needs the aileron pushrod hole opened up.

Primed rear-spar parts full size

After the drilling and deburring, several holes need countersinking in the inner doubler. After that, cleaned and primed.

Assembling rear spar full size

Cleco'd together the inner spar doublers and riveted with the hand-squeezer. Many of the holes will be riveted later with various other parts so they remain empty.

Assembling rear spar - middle full size

Here is the middle doubler in place. Most of the rivets come later.

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