Cable Cutting Through

Discussion for builders, pilots, owners, and those interested in building or owning a Sonex.

Re: Cable Cutting Through

Postby Area 51% » Tue Jun 27, 2023 8:22 am

Looking at the pictures, it would appear the slot on the left side is also not in it's proper location. It's as if the left and right panels had been swapped at birth.
Check behind the left exit fairing for fuselage damage ahead of the slot.
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Re: Cable Cutting Through

Postby BRS » Tue Jun 27, 2023 9:33 am

Area 51% wrote:Looking at the pictures, it would appear the slot on the left side is also not in it's proper location. It's as if the left and right panels had been swapped at birth.
Check behind the left exit fairing for fuselage damage ahead of the slot.


Wow! Area51 I think you should change your handle to EagleEye. If you are right, that is good catch. Not that I'm going to swap the panels but I will have a good close look see. Swapped or not, there is some minor metal work in my near future.
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Re: Cable Cutting Through

Postby pappas » Tue Jun 27, 2023 11:41 am

I would extend the slot aft to eliminate the interference with the cable using the dimensions in the plans.

Next, fab a "U" shaped aluminum doubler maybe .025 or.032 from scrap.

After that, I have always fabbed a similarly "U" shaped sacrificial "glide" (?) for lack of a better term from a 1/4 inch thick piece of plastic cutting board, or Teflon, or a similar type of material that is riveted to the fuselage and the aluminum doubler and resides between the cable and the fuselage.

The aluminum doubler and the Teflon glide can be fabbed to the same shape, match drilled, and installed at the same time with rivets of the appropriate length.

The Teflon will protect the fuselage without damaging the cable if there is any subsequent contact between the two.
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Re: Cable Cutting Through

Postby BRS » Tue Jun 27, 2023 7:25 pm

I'm thinking like you Lou.
Except instead of aluminum I might just 3D print something.

The panels are definately swapped (pic). My neighbor suggested flipping the steering linkage and all to the other side then it would all line up like it is supposed to. Clever idea.
Attachments
snx-cable-passthrough.jpg
-Brock
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Re: Cable Cutting Through

Postby Bryan Cotton » Tue Jun 27, 2023 8:20 pm

BRS wrote:My neighbor suggested flipping the steering linkage and all to the other side then it would all line up like it is supposed to. Clever idea.

Except you would need to modify the tailwheel weldment. Which would be ok.
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Re: Cable Cutting Through

Postby peter anson » Tue Jun 27, 2023 9:54 pm

Easiest fix is cut the new hole in the correct location and cover the old one but you need to do the left side too as the cable is obviously rubbing there as well. Who knows, you might even find it is nicer to fly without the extra drag on the cable.

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Re: Cable Cutting Through

Postby sonex892. » Wed Jun 28, 2023 1:57 am

BRS wrote:My neighbor suggested flipping the steering linkage and all to the other side then it would all line up like it is supposed to. Clever idea.


It could be done, but would be a lot more work and new parts than it seems. None of these bits are symetrical so can't simply be flipped. The rudder is hinged on the left, not the centerline.
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Re: Cable Cutting Through

Postby BRS » Wed Jun 28, 2023 10:00 am

sonex892. wrote:... The rudder is hinged on the left, not the centerline.
Steve


Good point.
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Re: Cable Cutting Through

Postby Area 51% » Wed Jun 28, 2023 11:15 am

I guess it wasn't just the cable exits that got located on the wrong side. It certainly looks as if the two sides were exchanged for each other during assembly because the inspection covers also seem to be on the wrong side.

My question is how important are the locations of the inspection holes in the first place? I'm a Waiex builder, so I don't know what those holes are used for. Does it not matter?
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Re: Cable Cutting Through

Postby bcharlton » Wed Jun 28, 2023 8:41 pm

I don't understand the extra hardware connecting the cables to the rudder horn. They should attach to the rudder horn. And...why is there
so much slack in the cables?
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