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01-27-2011, 03:51 AM
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Join Date: Oct 2010
Location: Belgium, Geraardsbergen
Posts: 120
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Question on vertical stabilizer plans
When looking at the DWG6 for the vertical stabilizer, I noticed the 6 little crossed circles on the side view that say 'leave open for empenage fairing attach, 6 places on each side of assembly'
I understood that this is the connection point of the fiberglass covering between the empenage and the vertical stabilo.
What I was asking myself is if I need to pre-drill to #40 and dimple these holes ?
Once rivetting the others, no way to dimple them anymore so I'm not sure now if it needs to be dimpled or not.
Thanks for the help.
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01-27-2011, 04:23 AM
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Join Date: Nov 2007
Location: Cary, N.C.
Posts: 1,216
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No, you do not need to do anything with these locations at this time
Later on, you will be adding nut plates in these locations. See drawing # 44 from your preview plans if you have them.
K1000-06 nut plates will be used. If you just happen to have them in your shop already, you could add them now and flush rivet them now, but it can be done later. Having the nut plates installed before the fiberglass fairing makes it a little harder to match drill the fiberglass part as there is some risk of damaging the pre installed nut plates.
Last edited by noelf : 01-27-2011 at 04:32 AM.
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01-27-2011, 05:56 AM
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Join Date: Oct 2010
Location: Belgium, Geraardsbergen
Posts: 120
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Ok, nutplates.
If I remember well there are little dimples required when attaching the side rivets of the nutplate.
Since this is done later, is it still possible to dimple the skin and rib then ? Or should this be done upfront.
Last edited by JurgenRoeland : 01-27-2011 at 11:52 AM.
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01-28-2011, 07:11 AM
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Join Date: Sep 2009
Location: Wichita, KS
Posts: 557
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Hi Jurgen.
I left mine untouched. I'm planning on using the "oops" rivets for the nutplate-attach rivets, so I'll lightly countersink for the reduced size of the "oops" rivet head.
This alleviates any dimpling of the nutplate legs. (In fact, I've been doing this all over my project.)
As far as having to drill through two pieces after they are riveted together...I had this same concern early on, and everyone (here on VAF) told me that being able to deburr each side of every sheet drilled is preferable, but not absolutely required, especially if you have a nice sharp drill bit.
Hope this helps.
__________________
Andrew Z.
Engineering Flight Test Pilot/Engineer, CFI-A, CFII, ATP
RV-7 in work (See my build log.)
Empennage...Done (except rebuilding the rudder.)
Wings...Halfway complete.
2018 Dues Paid
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01-28-2011, 07:12 AM
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Join Date: Sep 2009
Location: Wichita, KS
Posts: 557
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Also, I've seen some really nice emp fairings that didn't use all of the holes initially reserved. I'm going to wait and see how many I actually need before installing any nutplates. I may fill the unneeded ones with the normal AN426AD3- rivets.
__________________
Andrew Z.
Engineering Flight Test Pilot/Engineer, CFI-A, CFII, ATP
RV-7 in work (See my build log.)
Empennage...Done (except rebuilding the rudder.)
Wings...Halfway complete.
2018 Dues Paid
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01-28-2011, 12:15 PM
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Join Date: Dec 2008
Location: League city, TX
Posts: 544
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Which brings up a good question. Who makes a really goodafter market stab to fuse fairing out there.
__________________
Mark Malone, RV7
Wings complete, SB 14 complied with, canopy and cowling in progress, Up on the gear.
N442MM reserved
http://www.mykitlog.com/MikeMike
2020 Donation gladly paid..
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01-28-2011, 12:40 PM
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Join Date: May 2008
Location: central oregon
Posts: 1,089
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These ones have looked pretty good to me
https://fairings-etc.com/Empennage.html
__________________
nothing special here...
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01-28-2011, 01:35 PM
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Join Date: Dec 2008
Location: League city, TX
Posts: 544
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Danny,
Thanks for the link. BTW that's a really messed up video. I love the cherry orchard arrival though! 
__________________
Mark Malone, RV7
Wings complete, SB 14 complied with, canopy and cowling in progress, Up on the gear.
N442MM reserved
http://www.mykitlog.com/MikeMike
2020 Donation gladly paid..
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01-28-2011, 11:53 PM
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Join Date: Oct 2010
Location: Belgium, Geraardsbergen
Posts: 120
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Thanks for the tips guys
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01-29-2011, 12:16 AM
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Join Date: Dec 2007
Location: Breda, The Netherlands
Posts: 42
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The more recent fairings are shaped much better than the older ones. I suggest to wait and see how many screws you actually need.
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