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3-pc wing plumbing and wiring

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Well-Known Member
Sep 15, 2006
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The other thread got me thinking about what penetrations we need through our butt ribs on our Skybolt Delta upper wing. We are building our butt ribs now.

The Delta has four cabane tubes with an arrangement of stay wires and an18 gallon wing tank with outlets in each corner. We are planning on position lights at the wingtips. I would assume the outlets for the fuel tank should run down each of the aft cabane tubes and beplumbed together below the cowling. Also I would think the fuel tank vent should run down one of the forward cabane tubes to the undeside of the fuselage. For the position lights, I was thinking we would run wiring home runs down left and right cabane tubes. I am not crazy about wiring laterally through the center wing section which would be necessary to run from one wingtip light to the other. That would also complicate disassembly. Does this make sense or does someone have a better way?

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