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03-13-2012, 10:23 AM
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Senior Curmudgeon
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 16,313
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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.
__________________
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."
Last edited by Mike S : 03-13-2012 at 10:43 AM.
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03-13-2012, 10:53 AM
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Join Date: Dec 2008
Location: Big Sandy, WY
Posts: 2,567
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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?
__________________
Actual repeat offender.
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03-13-2012, 11:11 AM
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Senior Curmudgeon
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 16,313
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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.
__________________
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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03-13-2012, 12:55 PM
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Join Date: Jul 2009
Location: Dixon Ca
Posts: 91
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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
__________________
John Cumins A & P for way to long
N864JF Reserved
Emp complete , slow build Wings Fuel Tanks Finished, ailerons, and bottom wing skins ready to rivet on. Working on Flaps
My Build log http://websites.expercraft.com/jcrv10
Home Base VCB Nut Tree
Eaa 1230 VP
VAF 2015 Dues Gladly Paid
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03-13-2012, 01:27 PM
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Join Date: Jun 2005
Posts: 3,275
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Why don't you use the antenna system (Archer?) that will fit inside a wingtip?
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03-13-2012, 06:33 PM
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Senior Curmudgeon
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 16,313
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Quote:
Originally Posted by Ron Lee
Why don't you use the antenna system (Archer?) that will fit inside a wingtip?
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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.
__________________
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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03-13-2012, 07:14 PM
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Join Date: Sep 2009
Location: St. Louis, MO
Posts: 1,910
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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
__________________
Bill Peyton
RV-10 - 1380 hours
N37CP
First Flight Oct 2012
Aviation Partners, LLC
WARNING! Information presented in this post is my opinion. All users of info have sole responsibility for determining accuracy or suitability for their use.
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03-13-2012, 11:48 PM
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Senior Curmudgeon
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 16,313
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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.
__________________
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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03-14-2012, 05:05 AM
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Join Date: Jan 2005
Location: Louisville, Ga
Posts: 7,922
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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,
__________________
Rv10 Sold
46 years ag pilot/CFI
Air Tractor 502/PT-6
Building RV-12, Wings, fuse, emp complete. FWF in progress.
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03-14-2012, 06:33 AM
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Join Date: Jan 2007
Location: Battle Ground
Posts: 544
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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/
__________________
Scott
RV-7 N818BG (flying)
Bearhawk Patrol (building)
RV-7 (resurrecting)
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