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BOB'S WEB SITE
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Date: 3-14-2017
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Number of Hours: 1.00
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Manual Reference:
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Brief Description: Riveting side skins
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I fit the top side skins back on the frame and clecoed it (was rather disappointed in how the Cleaveland edge roller worked), then ran the string for the rudder cables and taped it back down.
I drilled the bushing brackets to the J-stringers, removed and deburred and then riveted them in place, then began riveting the side skins. This will take awhile; there are a LOT of rivets. I also need to be careful to only rivet, according to the instructions, holes in the 1279 (the top corner skins) that are common to the side skins. This would seem to preclude the rivets from the 1279 to the bulkheads, leaving only the bottom rivets on the 1279. Why that is, I don't really know. Another example of the step-by-step instructions not allowing you to see the "big picture" the way the ISO drawings on the 7A instructions did.
I also noted the instructions said to leave the holes within 7" of the edge open, which I can obviously see are for mating with the fuselage. But a little light went off because I vaguely remember taping off only the 7 most forward HOLES on the bottom of the fuselage.
Sure enough, checking the instructions again revealed those were to be 7" also, meaning three holes got riveted that shouldn't.
Thank god it was on the bottom because there's no way to drive out a mandrel in a pop rivet without essentially "dimpling" the .020 skin.
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