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N43YX
Joined: 22 Feb 2021
Posts: 10
Location: Tulsa, OK
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 Posted: Sun Oct 30, 2022 6:28 pm Post subject: forest of tabs behind panel |
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In the Sonex the fuel tank is in the cockpit and directly behind the instrument panel. There is minimal space on the back side of the firewall. Is there any issue with mounting the "forest of tabs" behind the panel and then running a single wire to a grounding point on the cockpit side of the firewall?
If this is feasible, how would I go about sizing said ground wire?
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user9253
Joined: 28 Mar 2008
Posts: 1927
Location: Riley TWP Michigan
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| Posted: Sun Oct 30, 2022 6:44 pm Post subject: Re: forest of tabs behind panel |
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Use a ground wire that is the same size as the positive wire that connects
to the main power bus. An option is to run the ground wire between the
the forest of tabs and battery negative terminal or to wherever the battery
negative connects to the airframe.
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Joe Gores |
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nuckolls.bob(at)aeroelect
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| Posted: Mon Oct 31, 2022 8:31 am Post subject: forest of tabs behind panel |
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At 09:28 PM 10/30/2022, you wrote:
| Quote: | --> AeroElectric-List message posted by: "N43YX" <awgaut(at)gmail.com>
In the Sonex the fuel tank is in the cockpit and directly behind the instrument panel. There is minimal space on the back side of the firewall. Is there any issue with mounting the "forest of tabs" behind the panel and then running a single wire to a grounding point on the cockpit side of the firewall? |
What kind of structure would be 'home' for the
ground block? Where is the battery installed
and how does the factory recommend ground it?
Given the simplicity of this airplane, I'm not sure
the big forest of tabs product is needed/appropriate
for your project.
Bob . . .
Un impeachable logic: George Carlin asked, "If black boxes
survive crashes, why don't they make the whole airplane
out of that stuff?"
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nuckolls.bob(at)aeroelect
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| Posted: Thu Nov 03, 2022 9:10 am Post subject: forest of tabs behind panel |
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At 09:28 PM 10/30/2022, you wrote:
| Quote: | --> AeroElectric-List message posted by: "N43YX" <awgaut(at)gmail.com>
In the Sonex the fuel tank is in the cockpit and directly behind the instrument panel. There is minimal space on the back side of the firewall. Is there any issue with mounting the "forest of tabs" behind the panel and then running a single wire to a grounding point on the cockpit side of the firewall? |
What kind of structure would be 'home' for the
ground block? Where is the battery installed
and how does the factory recommend ground it?
Given the simplicity of this airplane, I'm not sure
the big forest of tabs product is needed/appropriate
for your project.
For an airplane like a Sonex, perhaps a ground
system like this is more appropriate? You're
not going to have any high current, noisy loads.
Remotely located accessories using local airframe grounds
will still be serviced. Single point ground
for avionics is easily managed with the simpler,
lighter avionics ground techniques discussed on
the website and here on the List.
Bob . . .
Un impeachable logic: George Carlin asked, "If black boxes
survive crashes, why don't they make the whole airplane
out of that stuff?"
Bob . . .
Un impeachable logic: George Carlin asked, "If black boxes
survive crashes, why don't they make the whole airplane
out of that stuff?"
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N43YX
Joined: 22 Feb 2021
Posts: 10
Location: Tulsa, OK
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| Posted: Fri Nov 04, 2022 5:05 pm Post subject: Re: forest of tabs behind panel |
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Thanks, Bob. I'll check out that diagram.
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nuckolls.bob(at)aeroelect
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| Posted: Sat Nov 05, 2022 11:01 am Post subject: forest of tabs behind panel |
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At 08:05 PM 11/4/2022, you wrote:
| Quote: | --> AeroElectric-List message posted by: "N43YX" <awgaut(at)gmail.com>
Thanks, Bob. I'll check out that diagram. |
if you'd like to do panel grounds using a d-sub
ground bus, I might have enough resitual inventory
around to craft one for you.
Bob . . .
Un impeachable logic: George Carlin asked, "If black boxes
survive crashes, why don't they make the whole airplane
out of that stuff?"
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http://www.matronics.com/Navigator?AeroElectric-List |
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