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Ignition Switch - VAF Thread

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Bill Schlatterer

Joined: 09 Jan 2006
Posts: 195

Posted: Sun Dec 21, 2008 12:33 pm Post subject: Ignition Switch - VAF Thread

This thread pretty much covers it all on the starter  switch and ground.  Short story is that the GRD terminal on the 504 switch  uses the shield on the P-Lead to get to the aircraft ground.  Read this,  should cover it for you.

  

 http://www.vansairforce.com/community/showthread.php?t=36272&highlight=Starter+Switch

  

 Hope this helps.

  

 Bill S

 7a finishing

  

  

  

 



   From:  owner-aeroelectric-list-server(at)matronics.com  [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of Robert  L. Nuckolls, III

Sent: Saturday, December 20, 2008 1:00  PM

To: aeroelectric-list(at)matronics.com

Subject: Re: Fw:  Re: Ignition Switch

 

At 11:41 PM 12/19/2008, you wrote:

 [quote]

---

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hammer408(at)comcast.net
Guest

Posted: Sun Dec 21, 2008 5:33 pm Post subject: Ignition Switch - VAF Thread

Thanks Bill:

  

 This definitely answers my question.......I can now  see the "light" regarding grounding the sheilded wire at both ends per  Bob's Z-26......the link to the 2005  VAF Forum was excellent.  The  one thng I noticed was that they are using 18awg shieded and Bob's Z-26 uses 20  awg shielded....20 is what I have and plan on using unless 18 is better  than 20 !!

  

 Thanks again 

  

 Henry

  

  

 [quote]   ---

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nuckolls.bob(at)aeroelect
Guest

Posted: Sun Dec 21, 2008 6:50 pm Post subject: Ignition Switch - VAF Thread

At 08:08 PM 12/21/2008, you wrote:

  	  Quote: 	
		   Thanks Bill:

  

 This definitely answers my question.......I can now see the "light" regarding grounding the sheilded wire at both ends per Bob's Z-26......the link to the 2005  VAF Forum was excellent.  The one thng I noticed was that they are using 18awg shieded and Bob's Z-26 uses 20 awg shielded....20 is what I have and plan on using unless 18 is better than 20 !!

  

 Thanks again 	




    Some TC aircraft designs specify 20AWG or larger to

    any accessories on the engine . . . it's some sort

    of robustness thing. I suppose 18AWG is more robust

    still. On canard pushers, there IS a voltage drop issue

    for the long run from start switch to the tail mounted

    starter contactor combined with low battery and cold

    temperatures. 20AWG is fine but if you have some scraps

    of 18 laying around waiting for useful duty on your

    airplane it would be fine too. The only wires that benefit

    from shielding are the p-leads and then only if wired

    as depicted in the z-figures. There again 20 is adequate

    but 18 is fine if you have it.



    Bob . . .     [quote][b]

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hammer408(at)comcast.net
Guest

Posted: Mon Dec 22, 2008 12:59 pm Post subject: Ignition Switch - VAF Thread

Thanks Bob:

 [quote]   ---

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