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  #1  
Old 03-13-2012, 10:23 AM
Mike S's Avatar
Mike S Mike S is offline
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
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Default VOR antenna mounting help request.

I am in the process of installing a SL 30 in my plane, and one of the tasks it going to be installing the antenna for the VOR.

I have a Rami AV 12, and am planning on installing it under the rear fuse.

http://www.rami.com/product-view.php?pid=7

Do any of you out there have photos or information about the best method of mounting/installing this antenna in this location?

As near as I can tell, it would seem best to mount it exterior of the plane, with the coax leads facing down, then to fabricate a fiberglass fairing to cover it up.

This will require only three holes in the fuse, two for mounting bolts, and one for the coax. Otherwise, if I try to mount it inside the fuse, it would seem that I will need more, and larger holes in the fuse. My concern is that this is a high stress area, and I am not planning on a "Swiss Cheese" approach to mounting.

Another option is to make a saddle type of mount to fit the antenna to, and rivet it under the fuse, mounting the antenna to the saddle, requires one coax hole, and four rivet holes.

I am not considering trying to mount the antenna on top of the vert stab, as the access in just not going to be possible without a lot of extra work.

Thanks in advance.
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Flying as of 12/4/2010

Phase 1 done, 2/4/2011

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Last edited by Mike S : 03-13-2012 at 10:43 AM.
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  #2  
Old 03-13-2012, 10:53 AM
aerhed aerhed is offline
 
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Default

Mike, one thing is you do not need a ground plane so that may open options for you in mounting. Did you build your balun?
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  #3  
Old 03-13-2012, 11:11 AM
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Default

I have not yet done the balun, but thanks to you and others, it is going to be a non issue.

Big concern at this time is how to mount the antenna on a flying airframe with the least hassle.
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VAF 909

Rv-10, N210LM.

Flying as of 12/4/2010

Phase 1 done, 2/4/2011

Sold after 240+ wonderful hours of flight.

"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
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  #4  
Old 03-13-2012, 12:55 PM
jc11378 jc11378 is offline
 
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Default Nav Aentenna

Mike

Give me a call and i have several ideas. I have looked at this extensively and might have some ideas.

Cell 707-479-5895
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  #5  
Old 03-13-2012, 01:27 PM
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Ron Lee Ron Lee is offline
 
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Why don't you use the antenna system (Archer?) that will fit inside a wingtip?
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  #6  
Old 03-13-2012, 06:33 PM
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Quote:
Originally Posted by Ron Lee View Post
Why don't you use the antenna system (Archer?) that will fit inside a wingtip?
Too lazy, and too cheap.

I already have the Rami antenna, dont want to buy another one, and it would be a lot more work to run the coax through the wing.
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VAF 909

Rv-10, N210LM.

Flying as of 12/4/2010

Phase 1 done, 2/4/2011

Sold after 240+ wonderful hours of flight.

"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
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  #7  
Old 03-13-2012, 07:14 PM
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Bill.Peyton Bill.Peyton is offline
 
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Mike,
I think Geoff Combs just mounted one on the lower fuse. Check out his photos. Here http://combsfamily.phanfare.com/5345...geID=143048791
Bill
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  #8  
Old 03-13-2012, 11:48 PM
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Thanks Bill, that sure looks like the easy way to do things----I may just "borrow" that idea.

Only issue is that I was not planning on mounting mine that far back, and IIRC, there is a "J" stiffener ahead of his mounting location.
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Mike Starkey
VAF 909

Rv-10, N210LM.

Flying as of 12/4/2010

Phase 1 done, 2/4/2011

Sold after 240+ wonderful hours of flight.

"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
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  #9  
Old 03-14-2012, 05:05 AM
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pierre smith pierre smith is offline
 
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Location: Louisville, Ga
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Default Yep.

Mike, mine's mounted in line with the leading edge of the stab, under the fuse, very similar to that one and is out of the way...no poke in the eyes. Works well.

Best,
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  #10  
Old 03-14-2012, 06:33 AM
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sahrens sahrens is offline
 
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Default Another install

Here is another site with the installation you are thinking about. I plan on copying his work.

http://www.rv7blog.com/2009/11/01/vor-antenna/
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