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  #1  
Old 12-22-2019, 04:24 PM
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BGordon BGordon is offline
 
Join Date: Feb 2009
Location: Burleson, TX
Posts: 97
Default Fuselage wiring

Good afternoon everyone,
I?ve got wires starting to gather on the floor/seat of my 7 and I was wondering how have you got the wires to he back of the instrument pane? Just a bundle zip tied to the frame? Conduit at the front/aft? I?ve looked and can?t find any examples.

Thanks,
Brandon
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  #2  
Old 12-22-2019, 07:55 PM
philrisl philrisl is offline
 
Join Date: Apr 2014
Location: Deltona, FL
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Had the same issue with my RV9A. Fabricated a channel from the fuel valve to the rear instrument panel. Also used it to mount the ELT switch as well as the EC Commander for the PMags.
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  #3  
Old 12-22-2019, 07:55 PM
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Mark33 Mark33 is offline
 
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Location: Baton Rouge, La.
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Do you have your rear baggage compartment floorboards riveted in yet? If not,...and believe me it?s a lot of extra work, but put nut-plates everywhere so that all of those floorboards are removable. At the very least before you rivet the floorboards down, enlarge all of the holes that?s provided to run your wires through.

As a matter of fact, it doesn?t hurt to make extra holes. You can never have too much room to run wires or have too much access. I?m even enlarging the holes that?s provided in spar web a little to allow easier wire passage.

You?ll end up running wires through the center of the spar by the fuel selector and up through the center tunnel you?ll also run wires on each side. It?s almost one of those cases where you?ll just find your own best route to get all of the wires forward of the spar and then up behind the panel.

Once again, at the very least, enlarge the existing holes that are provided; it?ll make your life a lot easier when you?re pulling all of those wires. Oh, like you?d mentioned, running conduit always keeps everything nice and organized.
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  #4  
Old 12-22-2019, 08:08 PM
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jcarne jcarne is offline
 
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I ran mine like this. You can see the conduit going up the firewall. All the wires aft of the center section are either held with snap bushings or adel clamps.

20191221_164831 by Jereme Carne, on Flickr
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RV-7A Emp. done
Wings done
Fuselage done
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  #5  
Old 12-22-2019, 10:12 PM
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Drawing OP-30 shows this including the detail of attaching conduit to the firewall stiffeners. This drawing probably comes with the wiring kit but also comes with the full pdf plans set if you get that.
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  #6  
Old 12-24-2019, 09:49 AM
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BGordon BGordon is offline
 
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Thanks for the insight, I hadn?t seen OP-30, but will go look. Thinking ahead...do you think the cabin heat will pose any issue to the conduit?

Thanks again
Brandon
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  #7  
Old 12-30-2019, 12:25 PM
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Quote:
Originally Posted by Z-EDD View Post
Drawing OP-30 shows this including the detail of attaching conduit to the firewall stiffeners. This drawing probably comes with the wiring kit but also comes with the full pdf plans set if you get that.
No, I'm not worried.
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  #8  
Old 12-30-2019, 02:46 PM
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Quote:
Originally Posted by jcarne View Post
I ran mine like this. You can see the conduit going up the firewall. All the wires aft of the center section are either held with snap bushings or adel clamps.

20191221_164831 by Jereme Carne, on Flickr
If the conduit you're using is the corrugated stuff from Van's you will not be happy doing a flame test.

Take a piece of the Van's corrugated plastic conduit and set it on fire. The results are not pleasant. The plastic is hard to put out, has really toxic fumes and lights easily.

I'm using some smooth irrigation plastic that I found at the local hardware store. It reacted much better during a flame test.
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RV-7 Slider #74572
Started 11/2016
Empennage completed 11/2016 (sans fiberglass)
Ailerons and flaps completed 3/2017.
Wings completed 12/2017
Started on QB fuselage 01/2018
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  #9  
Old 12-30-2019, 03:11 PM
Jetmart Jetmart is offline
 
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Location: Windsor, Ontario
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Quote:
Originally Posted by mfleming View Post
If the conduit you're using is the corrugated stuff from Van's you will not be happy doing a flame test.

Take a piece of the Van's corrugated plastic conduit and set it on fire. The results are not pleasant. The plastic is hard to put out, has really toxic fumes and lights easily.

I'm using some smooth irrigation plastic that I found at the local hardware store. It reacted much better during a flame test.
Do you have a pic or the specs on the irrigation plastic that you found at the local hardware store? It sounds a lot better than Van's corrugated.
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Glenn Martin
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1942 Tiger Moth
2017 Waco YMF-5
Kit # 140694
Received RV-14 Empennage Kit October 22, 2019
Started Tail Cone Dec 2019
Received QB Kit April 2020
Finished a mounted Tail Surfaces to Fuselage June 2020
2020 Dues Paid
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  #10  
Old 12-30-2019, 03:15 PM
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jcarne jcarne is offline
 
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Quote:
Originally Posted by mfleming View Post
If the conduit you're using is the corrugated stuff from Van's you will not be happy doing a flame test.

Take a piece of the Van's corrugated plastic conduit and set it on fire. The results are not pleasant. The plastic is hard to put out, has really toxic fumes and lights easily.

I'm using some smooth irrigation plastic that I found at the local hardware store. It reacted much better during a flame test.
Good to know Michael. Good thing I put some firewall protection in. DanH has done much testing and it keeps the temp inside well short of where the plastic would ignite (I did some searching and can't seem to find the pic but I want to say I remember it being below 200 degrees after quite some time with fiberfrax done properly). Perhaps Dan will chime in. Now I just gotta hope the wires themselves don't go!
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