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Antenna Wire Disconnect at Wing Root?

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JLuckey(at)pacbell.net
Guest

Posted: Mon Jun 11, 2012 7:47 am Post subject: Antenna Wire Disconnect at Wing Root?

I’m planning wire runs for wings on RV-7 and would like to make wings as easy to remove as possible.  

   

Planning on using Molex-like connectors at wing roots for lights in the wing.   

Also planning to use wing-tip VOR antenna from Bob Archer.    

   

Question:  

   

1. How much loss would I encounter if I use a coax connector at the wing root for the VOR antenna?  

2. What is the best-we-know-how-to-do for this issue?  

   

   

Thanks,  

   

Jeff Luckey  

   

       [quote][b]

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ralphmariafinch(at)gmail.
Guest

Posted: Mon Jun 11, 2012 9:10 am Post subject: Antenna Wire Disconnect at Wing Root?

 	  Quote: 	
		  From everything I've heard it's very difficult to remove wings once installed with the close-tolerance bolts. Nevertheless I installed connectors for all wiring at the wing roots so I could wire the wings and fuselage ahead of time separately, and connect them at the time I joined wings to fuselage.

  
	


I believe there is very little loss for a single coax connector.



Ralph Finch



On Mon, Jun 11, 2012 at 8:45 AM, Jeff Luckey <JLuckey(at)pacbell.net (JLuckey(at)pacbell.net)> wrote:

  [quote]             

I’m planning wire runs for wings on RV-7 and would like to make wings as easy to remove as possible.  

   

Planning on using Molex-like connectors at wing roots for lights in the wing.   

Also planning to use wing-tip VOR antenna from Bob Archer.    

   

Question:  

   

1. How much loss would I encounter if I use a coax connector at the wing root for the VOR antenna?  

2. What is the best-we-know-how-to-do for this issue?  

   

   

Thanks,  

   

Jeff Luckey  

   

        	  Quote: 	
		  



ist" target="_blank">http://www.matronics.com/Navigator?AeroElectric-List

tp://forums.matronics.com

_blank">http://www.matronics.com/contribution



	


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sprocket(at)vx-aviation.c
Guest

Posted: Mon Jun 11, 2012 9:11 am Post subject: Antenna Wire Disconnect at Wing Root?

Removing the wings from an RV is not an easy process.  Wiring will be  the least concern if this is necessary.  What I did on my first RV was to  use terminal blocks and bnc connectors, but in my Rocket, Iâ€™m just going to  connect the wires with butt splices and the antenna wire will be routed without  interruption to the panel.

  

 With a bit of slack or a service loop, if you ever have to remove the  wings, cut the wires and reterminate with new butt splices.  As for the  antenna cables, you can then add bnc in-line connectors.

  

 This is by far the cheapest, easiest, lightest and most space efficient  solution.  Also, connectors of any kind are failure points that eventually  will need service.  Iâ€™ve had more connector failures in my career than the  I care to discuss.

  

 Vern

    

  From: Jeff Luckey (JLuckey(at)pacbell.net) 

 Sent: Monday, June 11, 2012 8:45 AM

 To: aeroelectric-list(at)matronics.com (aeroelectric-list(at)matronics.com)  

 Subject: Antenna Wire Disconnect at Wing  Root?

  



   

Iâ€™m  planning wire runs for wings on RV-7 and would like to make wings as easy to  remove as possible. 

  

Planning on using Molex-like connectors at wing roots  for lights in the wing.  

Also  planning to use wing-tip VOR antenna from Bob Archer.    

  

Question: 

  

1. How  much loss would I encounter if I use a coax connector at the wing root for the  VOR antenna? 

2. What  is the best-we-know-how-to-do for this issue? 

  

  

Thanks, 

  

Jeff  Luckey 

 

 	  Quote: 	
		  



href="http://www.matronics.com/Navigator?AeroElectric-List">http://www.matronics.com/Navigator?AeroElectric-List

href="http://forums.matronics.com">http://forums.matronics.com

href="http://www.matronics.com/contribution">http://www.matronics.com/c

	
 

No virus found in this  message.

Checked by AVG - www.avg.com

Version: 2012.0.2180 / Virus  Database: 2433/5062 - Release Date: 06/11/12

   [quote][b]

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FisherPaulA(at)johndeere.
Guest

Posted: Mon Jun 11, 2012 1:15 pm Post subject: Antenna Wire Disconnect at Wing Root?

Jeff,

As several others have said – “the best we know how to do” is don’t plan to take the wings back off!  Once you permanently install them, you will understand!  

 

However to answer your question, I had exactly the same thought you did – make it easy to remove later. I put a bulkhead BNC connector on the side of the fuselage for the VOR antenna in the wingtip and it works fine.  I’ve had no issues with it (VOR, localizer, and glideslope).  I can’t speak to the amount of loss – I don’t have the equipment or expertise to give you a number.  But I can tell you that it has worked for the last three years and I have no plans to change it.

 

Hope that helps.

 

Paul A. Fisher

RV-7A N18PF ~330 hours since August of 2009



 

From: owner-aeroelectric-list-server(at)matronics.com [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of Jeff Luckey

Sent: Monday, June 11, 2012 10:46 AM

To: aeroelectric-list(at)matronics.com

Subject: Antenna Wire Disconnect at Wing Root?

 

I’m planning wire runs for wings on RV-7 and would like to make wings as easy to remove as possible.

 

Planning on using Molex-like connectors at wing roots for lights in the wing. 

Also planning to use wing-tip VOR antenna from Bob Archer.  

 

Question:

 

1. How much loss would I encounter if I use a coax connector at the wing root for the VOR antenna?

2. What is the best-we-know-how-to-do for this issue?

 

 

Thanks,

 

Jeff Luckey

  	  Quote: 	
		    	
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