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  #1  
Old 07-07-2021, 03:44 PM
Flyer2017 Flyer2017 is offline
 
Join Date: Mar 2017
Location: Providence, UT
Posts: 56
Default How to place remote boxes on subpanel

I'm changing my panel from round gauges to two AFS EFIS with an Avidyne 540 and remote com panel. Trying to figure out how to arrange all the boxes on the subpanel and ribs. Looking for pictures of how others have done it. The 540 projects thru the subpanel which takes up a lot of available space for other boxes. Any pictures or referrals to builders logs would be helpful. thanks
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RV-9A, 0-320, FP Prop, paid 2021
Cessna 140A 0-200
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  #2  
Old 07-08-2021, 08:40 AM
RV7 Heaven RV7 Heaven is offline
 
Join Date: Jan 2013
Location: Palm City, FL
Posts: 9
Default

I installed an AFS panel in my RV-7. Here are some pictures of the panel and how I did the sub panel. Let me know if you have any questions about what I did.
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Greg B
Palm City, FL
Building RV-7 / #73557 / N558GB (Reserved)
2021 Dues Paid

Disclaimer: The information presented in this post is my opinion. Anybody using this information has the responsibility for determining the accuracy and suitability for its use.

Last edited by RV7 Heaven : 07-08-2021 at 08:46 AM.
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  #3  
Old 07-08-2021, 09:22 AM
rapid_ascent rapid_ascent is online now
 
Join Date: Mar 2008
Location: Dublin, CA
Posts: 1,568
Default

I'm just getting to this point on my build. I'm using a Garmin G3x system so its different than your install, but similar problem. The G3x has lots of little boxes that need to be mounted somewhere. I'm still trying to figure out where for most of them.

You can use the sides of the forward ribs as well as the sub-panel. My sub-panel like yours has a big hole in it to all for my GNS-430 so the center isn't available. Right now I have a fuse block mounted on one of the available sides. The forward section of the ribs are fairly wide so they worked for mounting 2 of my boxes. These will be difficult to get to once the forward skin is installed so I plan to use hex head screws and nut plates to make it a little easier to remove install. I allowed some room at the forward end so that I could get a tool and my hand in there for install/removal. The pic shown is just a test fit.

I'll probably need to make one or more shelves of some sort under the sub-panel area. The bottom of the ribs in the center, forward of my sub-panel cutout look to be a good option. I'm trying to make sure that I have enough access though. I may need to test fit my radio stack before I can figure that out.
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Ray Tonks
2020 Donation Paid
Titan IOX-370, Dual PMAGs, 9.6:1 Pistons, FM-150
RV-7 Fuselage in progress
* Cabin Interior - In progress
RV-7 SB Wings
* Both Wings fully skinned
* Fuel Tanks Complete - No leaks finally
* Ailerons Complete
* Flaps Complete
RV-7 Empennage - Complete (a little fiberglass work left)
Vans Training Kit # 2 - Complete
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  #4  
Old 07-08-2021, 11:49 AM
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wcalvert wcalvert is offline
 
Join Date: Jan 2019
Location: Anacortes Wa
Posts: 298
Default Shelves

I build a row of shelves across the aft side of the panel forward of the instrument panel. Held all the Dynon boxes and then some. Decent access behind the panel.
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Bill (Wild) VA-165 '90-'93
Anacortes, Wa

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- Been there, Donated 2021
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  #5  
Old 07-08-2021, 12:16 PM
rapid_ascent rapid_ascent is online now
 
Join Date: Mar 2008
Location: Dublin, CA
Posts: 1,568
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Bill,

That looks like a pretty nice solution.
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Ray Tonks
2020 Donation Paid
Titan IOX-370, Dual PMAGs, 9.6:1 Pistons, FM-150
RV-7 Fuselage in progress
* Cabin Interior - In progress
RV-7 SB Wings
* Both Wings fully skinned
* Fuel Tanks Complete - No leaks finally
* Ailerons Complete
* Flaps Complete
RV-7 Empennage - Complete (a little fiberglass work left)
Vans Training Kit # 2 - Complete
RV-7 Preview Plans
Vans Training Kit #1 - Complete
EAA Sheet Metal Class - Complete
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  #6  
Old 07-09-2021, 07:44 AM
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dougweil dougweil is offline
 
Join Date: Jun 2005
Location: Hudson, WI
Posts: 257
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Someday….. somehow…. You will have to remove these items for repair. Use nut plates and caps crews or you will be faced with a nearly impossible task of trying to remove and replace them!!
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Doug Weiler

Hudson, WI
president, Twin Cities RV Builders Group
RV-4, sold
RV-7 completed and flying N722DW, 930 hours
Based Lake Elmo, MN (21D)
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  #7  
Old 07-09-2021, 12:00 PM
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Draker Draker is offline
 
Join Date: Jun 2016
Location: Livermore, CA
Posts: 536
Default

I "borrowed" an idea from another builder and made a flat, removable shelf between the subpanel and firewall:



It held most of the "goodies" that don't need to stick out of the panel:

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Ryan Drake
Livermore, CA
https://stiletto.smugmug.com/RV7
Donated 12/31/2020
RV-7A (N12VD): Everything done that can be done at home. Waiting for hangar to finish up.
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  #8  
Old 07-09-2021, 02:08 PM
sf3543 sf3543 is offline
 
Join Date: Jan 2005
Location: San Antonio, TX
Posts: 1,090
Default

I have worked on lots of planes where the builder installed remote boxes behind the panel that were almost impossible to access because they didn't consider the skin that was going to be installed over them.
When installing stuff behind the panel, make sure you allow for future maintenance. This would include being able to remove the boxes as well as access the wiring. If you don't, you may regret it sooner than you think.
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Legend Cub
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  #9  
Old 07-09-2021, 05:15 PM
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sahrens sahrens is offline
 
Join Date: Jan 2007
Location: Battle Ground
Posts: 528
Default Shelf

Like Ryan I built a shelf behind my sub-panel. It is hinged so I can lower it to get to the avionics installed on it. Vans sells an access panel kit to give access from above.

https://shop.vansaircraft.com/cgi-bi...ccessPanelsKit
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RV-7 N818BG (flying)
Bearhawk Patrol (building)
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  #10  
Old 07-09-2021, 07:16 PM
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wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 4,662
Default Hinged panels

My boxes are not installed but I fabricated mock ups of everything. After seeing how much real estate was used, I fabricated two panels from the instrument panel to the sub panel. They are hinged fore and aft so they can swing either way or be removed simply by pulling hinge pins. Really makes the instrument panel solid too.
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Larry Larson
Estes Park, CO
wirejock at yahoo dot com
Donated 01/01/2021, plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
Empennage, wings, fuse, finishing kit, now FWF
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
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