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Wingtip Grounding

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Michael Wynn

Joined: 10 Jan 2006
Posts: 148
Location: San Ramon, CA

Posted: Mon Jul 10, 2006 12:46 pm Post subject: Wingtip Grounding

Hi folks,

  

 I am getting towards completion of the wings on an RV-8.  At the wing  tips, I will have strobes, nav lights, landing lights and antennae.  I was  scratching my head about grounding these things.  The wing spar is a lovely  ground spot.  The outboard-most rib is primed and hence is not a good  ground point.  I was thinking about drilling a 3/16 or so hole in the spar  just inboard from the last rib, inserting a bolt and then using the bolt as a  common terminal for the ground side of the above components.  Does that  seem reasonable?  Is there a better way to do this?

  

 Regards,

  

 Michael Wynn

 RV 8

 San Ramon, CA

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_________________
Michael Wynn
RV 8
San Ramon, CA

recapen(at)earthlink.net
Guest

Posted: Mon Jul 10, 2006 1:21 pm Post subject: Wingtip Grounding

I used a nutplate out there and a bonding wire at the wing root to my ground farm.......

 [quote]--

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FLYaDIVE(at)aol.com
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Posted: Mon Jul 10, 2006 1:39 pm Post subject: Wingtip Grounding

In a message dated 7/10/06 4:49:04 PM Eastern Daylight Time, MLWynn(at)aol.com 

writes:



 	  Quote: 	
		   Hi folks,

   

  I am getting towards completion of the wings on an RV-8.  At the wing  

tips, 
	


 	  Quote: 	
		   

  I will have strobes, nav lights, landing lights and antennae.  I was  

  scratching my head about grounding these things.  The wing spar is a 

lovely  
	


 	  Quote: 	
		   ground 

  spot.  The outboard-most rib is primed and hence is not a good  ground 

point.
	


 	  Quote: 	
		     I 

  was thinking about drilling a 3/16 or so hole in the spar  just inboard 

from 
	


 	  Quote: 	
		   

  the last rib, inserting a bolt and then using the bolt as a  common 

terminal 
	


 	  Quote: 	
		   

  for the ground side of the above components.  Does that  seem reasonable?  

 Is 

  there a better way to do this?

   

  Regards,

   

  Michael Wynn

  RV 8

  San Ramon, CA

=============================
	


Michael:



How are you running all those wires out to the wing tip?



I would suggest a plastic tube about 3/4 to 1" ID 

Now that you have the tube and the wires out there just run a #12 wire all 

the way out there Do the Double Nut & Bolt through the rib idea you mentioned 

BUT, now you can locate the Nut & Bolt at an easy to access point ... Use BRASS 

Nut & Bolt with a star washer under the first nut.  Then use a washer stack 

your ground lugs and another star washer & nut.  O!  Still want to use the wing 

as a ground ... Go right ahead run that wing ground out to the same Nut & Bolt 

configuration you just installed.  



Years later when yo would want to run another wire for what ever reason ... 

EASY no crazy fishing and cursing to do 



Barry

"Chop'd Liver"

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lhelming(at)sigecom.net
Guest

Posted: Mon Jul 10, 2006 3:17 pm Post subject: Wingtip Grounding

That is the way I did mine but I cleaned off the primer and put it in the  end rib.  Works fine.  Larry in Indiana

 [quote]   ---

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