16-03 Riveting R Wing Top Skins

Having applied JC5A to all the mating surfaces, I clecoed on the R Top Skins.

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Lots of clecoes, but it felt good to start assembling the wing : )

Vans suggest that you use a back-rivet technique to set the wing skin rivets. But having had good results with a mushroom set & bucking bar when Tim & I riveted the aft fuselage, we decided to try this again.

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This worked well, and access to the rivets was easy with the tungsten bucking bar. I backed off the gun pressure to about 45PSI, just enough to set the rivets with a quick burst, but as gently as possible to avoid skin deformation.

Rear Spar Flange Rivets

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These were the most awkard, but with careful orientation of the bucking bar all worked OK.

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The rivets along the top side of the Rear Spar Doubler Plate needed a different bucking bar due to the very limited clearance from the plate rivets. After protecting the plate shop heads with tape, we went for it. Happily all fine!

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It took us just over 5 hrs to rivet the top skins … punctuated by cups of tea and a pizza! Anyway, job well done. Next job is to rivet on the stiffeners.

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