Braided fuel lines.

Any body have pictures of the fuel line routing using the braided lines, or solid metal lines. from the wing root (where it comes into the fuselage) to the header? I specifically need to where the lines or bulkhead fittings enter the fuselage and how close the pitot static lines and electrical need to be.

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Permalink Reply by Jim Reese on August 23, 2021 at 10:35am

I can make a comment about how not to do it. Photo of how I ran the lines from cabin interior thru baggage panel to header. I tucked lines near roof to keep it tidy. When in flight with slightly low fuel an air bubble in lines stopped fuel feed into header. I noticed low header fuel before a mishap, but lowered the feed thru by 3". All is well now. 

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Permalink Reply by Keith Thomas on August 23, 2021 at 10:54am

Thanks for the heads up. I think I figured it out, not a lot of space in the trailing edge area at the fuselage for 2 fuel line, pitot static lines, and electrical. My wings aren't built yet so trying to guess.

Permalink Reply by Jim Reese on August 23, 2021 at 11:50am

I don't have a decent photo of my area where lines enter the cabin, but I will include a scale drawing I made to find a fit for everything. It all fits--but just.

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Permalink Reply by Keith Thomas on August 23, 2021 at 12:16pm

Thanks that helps. I have one more fuel line to add I hope it fits. According to Viking we need a vent line running to the tanks.

Permalink Reply by Jim Reese on August 23, 2021 at 12:44pm

I added a vent at a later date. I used a Bundy connector (quick fuel connect). It was 5/16 if I recall correctly. They are plastic and I didn't care for plastic on sharp panel edges, so I machined a male Bundy from metal. Couldn't find a male Bundy bulkhead. It all fits, but crowded. I am using a Viking 130, but my own header & pumps. Taking the wing on and off is not super difficult with these connectors.

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