fuel return line through side skin.

[jcaplins]

I need to drill the 1" holes for the fuel line + grommet that will pass through the F-770 side skin and gear attachment plate. The plans only call for a 1" hole on each side of the fuselage. My engine is fuel injected and so I need a return line to the tanks. What have others done in this situation? just drill a 2nd 1" hole below the first? Is there a better option or place for the second hole?

I will have a return line for each tank. left tank has flop tube, right has regular fuel pickup tube. I do not have any fittings installed or located in the fuel tanks for the return lines yet.

Thanks,

 

[airguy]

Just measure carefully to get it in the right spot!

Here's what I did on my 9A, just what you're talking about.

 

[Alex_K]

You can see fuel lines of my RV on the picture below. All tubes ( including return line) go directly to tank fittings and are passed through 1" grommets.

http://lh5.googleusercontent.com/-Vo1PXeLjeUY/UD9a2VTkd_I/AAAAAAAAAvg/4o_Lmx7N4BE/s1024/IMG_4410.JPG

 

[jcaplins]

Thanks for the response.


So, right now I am going under the assumption that I can drill 1, 2 or 3, 1" holes, no problem, this is normal.
I would also like to think that I don't really need to align them with anything; based on the assumption that I will have to bend tubing (or use flexible hoses) in the wing roots to connect the tank to the fuselage. Would this be a reasonable assumption?


Thanks,

 

[Alex_K]

If I did it again I'd have used flexible hoses from fuel selector to tank.