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11-10-2011, 07:01 PM
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Join Date: Dec 2006
Location: Paso Robles, CA
Posts: 1,177
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Special Tip!
Quote:
Originally Posted by Brantel
The only thing about rivnuts is that if they ever get loose, they will start to spin and you will have to cut the screw off to get it out...those things have caused many to lose their religion!!
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Clean the area that will be under the Rivnut's head.
Make sure its really clean. Then put a little bit of higher strength Loctite just under the rivnut head just before you pull/set it. it works great after curing. 
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11-11-2011, 06:22 AM
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Join Date: Mar 2006
Posts: 86
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Rivnut spinning
I just installed my upper faiings and used a bit of JB weld around the rivnut before pulling. Works great. (let it cure for a day before putting screw in
__________________
L. John Gould
Dues paid for 2014
RV-6A built and certified 1995 and sold 2002
RV-4 Flying since 3-2011. 110)hrs
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11-11-2011, 08:04 AM
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Join Date: Apr 2007
Location: Cedar Hill, Tx.
Posts: 159
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They are made for flush mount also. Though you need to counter sink the metal or dimple it. But it sounds like you came up wit a remidy.
__________________
member 1 of 6
Metal Feathers Club
RV 7 N706CB
1st flight Oct 18, 08
S/N 72847 tip 200HP CS glass IFR
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11-11-2011, 10:08 AM
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Join Date: Oct 2007
Location: Sacramento, CA
Posts: 3,351
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Considering that the upper intersection fairing requires fewer inspection/removal, rivnuts may work just as well but putting a bit of extra work and adding nut plates will assure long lasting way of doing this. In reality, it is not all that much work to remove the seat floor when you consider how worse it could be if the other method gives up.
__________________
Mehrdad
N825SM RV7A - IO360M1B - SOLD
N825MS RV14A - IO390 - Flying
Dues paid
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03-27-2012, 06:56 AM
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Join Date: Jan 2005
Location: St. Paul, MN.
Posts: 4,792
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Sorry to bring an old thread back. I'm curious what Chad ended up going with. I have an "A" and just fitted the Van's intersection fairings last night. Ish. Looks like one attach point is between the main spars. No way I can get in there to put a nutplate in.
Wouldn't mind seeing some pictures from other "A" people.
Also, wouldn't mind leaving the hangar key under the mat and coming in a day or so later to find out that a bunch of VAFers stopped over to do this for me. 
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03-27-2012, 07:52 AM
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Join Date: Aug 2005
Location: Abilene, Texas
Posts: 64
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I used rivnuts on my 9A. Turned a long painful 2 man job into a one hour one man job. Spinning rivnuts not a problem especially when you use the keyed ones. They don't need to be flush. The fairing covers all that without issue.
Steve Johnson
RV-9A
2400 hours of build
175 hours on the Hobbs
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03-27-2012, 09:47 AM
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Join Date: Jan 2006
Location: Ehprata, WA
Posts: 318
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Bob,
This is what I did. These are RV-bits intersection fairings, so I'm not sure how the Vans ones compare in size.
The forward attach point clears the main gear weldment, and the aft attach point is just behind the the center box rivet line. Both are very accessable to install platenuts, although it was a two person job to get them riveted.
When the time comes to mate the wings, I'll install a platenut in the wing fairing at about this location.

__________________
Nate Benson
Ephrata, WA
RV9A/Slider N608MA
Flying
KitProject.com
"If you think you can do a thing, or think you can't do a thing, you're right." -- Henry Ford
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03-27-2012, 02:04 PM
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Join Date: May 2010
Location: Denver
Posts: 564
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Bob,
If the -7A is anything like the -10, there is a way to mount a nutplate between the main spar. Use your nutplate jig to drill all 3 holes from the outside, then starting from above the spar thread a wire through the center hole. I used a piece of welding wire, but a coat hanger will probably work also. Drop a nutplate over the wire from above. It will now be in approximately the correct position. Use a magnet from below to move the nutplate in final position, cleco one of the rivet holes, use a pull rivet to anchor the other rivet hole, remove the cleco and rivet the second leg of the nutplate. Takes a bit of fiddling, but it can be done.
Jim Berry
RV10
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03-27-2012, 04:13 PM
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Join Date: Aug 2008
Location: Lawton, OK
Posts: 265
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Nutplates for intersection fairings
Some have put the nutplates on the bottom or outside of the fuselage
Skin. The intersection fairing gives plenty of depth to work with.
RV9A Bill
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03-27-2012, 08:36 PM
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Join Date: Oct 2006
Location: Southeast
Posts: 569
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Since the forward fuselage skin is pretty thick, I just drilled and tapped threaded holes for a #6 screw. So far good, as in the screws haven't backed out. Other attach holes on the wing fairing got nutplates.
I figured I'd just drill out the tapped holes for nutplates when the threads strip out, which hasn't happened over the past year of service on my -7A.
Mike
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