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  Topic: Two coms mic switching
cofford

Replies: 8
Views: 5049

PostForum: AeroElectric-List   Posted: Thu Mar 12, 2020 9:27 am   Subject: Re: Two coms mic switching
At 06:59 AM 3/12/2020, you wrote:
--> AeroElectric-List message posted by: Alec Myers <alec>

I don’t think you need to switch either side. Run the mic in parallel into both radios, an ...
  Topic: Two coms mic switching
cofford

Replies: 8
Views: 5049

PostForum: AeroElectric-List   Posted: Wed Mar 11, 2020 3:29 pm   Subject: Two coms mic switching
Hello all,

I'm sure this has been answered before, but I'm planning to use two com radios without an audio panel, so I need to switch the mic input. My current plan is to use two PTT switches on t ...
  Topic: New role for the E-Bus?
cofford

Replies: 82
Views: 44768

PostForum: AeroElectric-List   Posted: Mon Mar 02, 2020 10:58 am   Subject: Re: New role for the E-Bus?

Here is the work in progress:

https://tinyurl.com/wvmc68v

Only 2 switches. Airplane flies with either switch
in the full up position. No combination of switch
positions is pote ...
  Topic: Always Hot Power to Injectors and Ignition Coils
cofford

Replies: 2
Views: 3097

PostForum: AeroElectric-List   Posted: Tue Feb 18, 2020 8:06 pm   Subject: Re: Always Hot Power to Injectors and Ignition Coils
In my setup, the ignition check is done at runup using the ignition select switch. A 1-1 switch is used to ground a pin on each ECU which disables the ignition for that ECU. Normal operation is in t ...
  Topic: Always hot power for fuel injectors and ignition coils
cofford

Replies: 5
Views: 5093

PostForum: AeroElectric-List   Posted: Sun Feb 16, 2020 7:04 pm   Subject: Re: Always hot power for fuel injectors and ignition coils
Hi Bob,

Thanks for your thoughts. I plan on mounting my battery on the firewall, and the engine fuse block on the cabin side, near the battery and pass-through. The relay would be mounted to the ...
  Topic: Always hot power for fuel injectors and ignition coils
cofford

Replies: 5
Views: 5093

PostForum: AeroElectric-List   Posted: Sat Feb 15, 2020 6:53 pm   Subject: Re: Always hot power for fuel injectors and ignition coils
I had a chance to draw up some schematics. This is the dual battery system I've been kicking around for a while. This would be a system based on Z19.

https://drive.google.com/open?id=1vKln4Zl0CC2 ...
  Topic: Always hot power for fuel injectors and ignition coils
cofford

Replies: 4
Views: 3355

PostForum: AeroElectric-List   Posted: Sat Feb 15, 2020 3:17 pm   Subject: Re: Always hot power for fuel injectors and ignition coils
Thanks Charlie, agree with your reasoning and I am heading towards a similar solution, though perhaps with a relay at the battery instead of a high-current switch. Just wanted to make sure that I was ...
  Topic: Always hot power for fuel injectors and ignition coils
cofford

Replies: 5
Views: 5093

PostForum: AeroElectric-List   Posted: Sat Feb 15, 2020 3:11 pm   Subject: Re: Always hot power for fuel injectors and ignition coils
The system is FlyEFII System32. The manufacturer recommends using their own bus manager system, which provides a diode-protected, arguably dual-feed switched bus (the terminal on the bus manager is d ...
  Topic: Always hot power for fuel injectors and ignition coils
cofford

Replies: 2
Views: 2673

PostForum: AeroElectric-List   Posted: Fri Feb 14, 2020 10:49 am   Subject: Always hot power for fuel injectors and ignition coils
Hi everyone,

I'm currently planning the electrical architecture for my RV-8 with EFII and I've been following the recent discussions of fuel injector power with great interest. Does anyone connect ...
 
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