LettersFromFlyoverCountry
Well Known Member
I have studied the drawing and ran the first fuel supplyline from the fuel valve area around the landing gear and out the side of the fuselage. The drawing suggests an "S" curve in the tubing as it comes through the landing gear weldment (on a 7A) and then up and out the fuselage.
I initially ran the line through the bottom hole in the weldment but then thought that resulted in a pretty tight curve, so I backed off and ran through the middle holes in the weldment instead. This way, I got a gentle curve from the landing gear to near the exit hole, and then a 90 degree bend to go out.
I'm not sure this was the usual route because I didn't need to do that much bending around the weldment. Am I missing something.
Here's the initial route.
And then ...
As you can see, the tubing is exiting the hole in the landing gear weldment on a more gentle curve.
And then a near-90 degree bend and then out. Now I think if I went to the bottom hole, I would need a tight bend to come up to exit the fuselage. I can do that, of course, although I'm trying to do this without taking the landing gear weldment out since it's already torqued down, and it's a lot easier to work with the spring benders (which worked fine here) then the Imperial bender in this tough-to-get-at-location.
Also, if I went down to the bottom hole, I've created a low spot, since the tubing has to then come back up to get through the appropriate (i.e. bottom) hole of the outboard cover rib.
Is this acceptab;e?
I initially ran the line through the bottom hole in the weldment but then thought that resulted in a pretty tight curve, so I backed off and ran through the middle holes in the weldment instead. This way, I got a gentle curve from the landing gear to near the exit hole, and then a 90 degree bend to go out.
I'm not sure this was the usual route because I didn't need to do that much bending around the weldment. Am I missing something.
Here's the initial route.
![leftone.jpg](/community/proxy.php?image=http%3A%2F%2Fhome.comcast.net%2F%257Ebcollinsrv7a%2Feaa%2Fimages%2Ffuelline%2Fleftone.jpg&hash=a35de3936d29b678f47f628f80394e52)
And then ...
![lefttwo.jpg](/community/proxy.php?image=http%3A%2F%2Fhome.comcast.net%2F%257Ebcollinsrv7a%2Feaa%2Fimages%2Ffuelline%2Flefttwo.jpg&hash=2210fdf893bbb4cc46b854e3d41ff589)
As you can see, the tubing is exiting the hole in the landing gear weldment on a more gentle curve.
![leftthree.jpg](/community/proxy.php?image=http%3A%2F%2Fhome.comcast.net%2F%257Ebcollinsrv7a%2Feaa%2Fimages%2Ffuelline%2Fleftthree.jpg&hash=c500996f4095adabf7fdfd86033854d2)
And then a near-90 degree bend and then out. Now I think if I went to the bottom hole, I would need a tight bend to come up to exit the fuselage. I can do that, of course, although I'm trying to do this without taking the landing gear weldment out since it's already torqued down, and it's a lot easier to work with the spring benders (which worked fine here) then the Imperial bender in this tough-to-get-at-location.
Also, if I went down to the bottom hole, I've created a low spot, since the tubing has to then come back up to get through the appropriate (i.e. bottom) hole of the outboard cover rib.
Is this acceptab;e?
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