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12-05-2013, 06:45 PM
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Join Date: Aug 2010
Location: Flesherton, ON
Posts: 33
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Elevator control horns slightly out of alignment
Hey Gang,
working on drilling the elevator control horns (through the centre bearing) and the right side is slightly higher than the left. Both trailing edges seem to be level. Should I try to equal them out? or just drill them and be done with it. both elevators swing freely with no binding.
Thanks in advance
Andrew
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12-05-2013, 07:03 PM
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Join Date: May 2006
Location: Houston
Posts: 2,012
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If the elevators are aligned, go with it.
Last edited by Low Pass : 12-05-2013 at 07:25 PM.
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12-05-2013, 07:05 PM
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Join Date: Feb 2007
Location: Dallas, TX
Posts: 365
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Stick with the trailing edge alignment, that's what's important...not the horns.
__________________
Jeff Atkinson
RV-8 #82594 Flying since May 2012
Barrett XP-360, Catto 3-Blade, Dual G3X Touch, GTN-650, VP-X
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12-05-2013, 07:16 PM
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Join Date: Nov 2010
Location: lake charles, La.
Posts: 699
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Yep that is somewhat normal, if I remember, the plans or manual make note of this.
Bird
__________________
Bird
rv8 entire airframe at airport now, painting done, intersection and gear upper and lower fairings done, maybe order engine around first of year or before the next rate increase.
"to fly is a privilege that I am so thankful to God for"
http://www.mykitlog.com/tcb328/
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12-05-2013, 09:16 PM
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Join Date: Sep 2010
Location: Dallas, TX
Posts: 330
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True Bill...
Yep, I was stressed about that too... called and spoke to Van's support about it - it's normal, not an issue, build on brother Andrew!
But do make sure you have enough clearance between the control tube and the bolt/washer/nut combination and can get a wrench on it...that can be an issue.
__________________
Jim
RV-8 N223GT (reserved)
Finish - arrived 10/7/15
Fuselage - arrived 3/14/14
Wings - arrived 3/7/13
Builder # 83331
www.mykitlog.com/izzybear
VAF Dues gladly paid up till December 2020
"The ultimate responsibility of the pilot is to fulfill the dreams of the countless millions of earthbound ancestors who could only stare skyward and wish." - Unknown
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12-05-2013, 10:26 PM
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Join Date: Nov 2012
Location: Half Moon Bay, CA
Posts: 1,035
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I had a similar problem on my -7; see my post to the brain trust below:
http://www.vansairforce.com/communit...ad.php?t=97098
It does seem to be a sorta common issue. If the edge distance is OK on the horns, Van's says "build on". This really concerned me for a while; though I really mussed something up.
Watch the clearance for the bolt heads ... in extreme cases, the head or the nut may interfere with the column to the control surface.
__________________
Bill Bencze
N430WB RV-7 #74152 @ KHAF, tip-up; IO-360-M1B; Hartzell CS. !! Phase 1 !!
2357 hrs over 8.5 years to get to flying. Log at: http://rv7.wbencze.com
VAF 2020 donation happily made
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12-06-2013, 02:52 AM
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Join Date: Mar 2007
Location: Gold Coast - Australia
Posts: 137
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yep
ditto to all the replies above....been there and agree. Good luck with the rest of the build, it gets exciting from now on 
__________________
Peter Vernon
Eagle Heights, Queensland, Australia
RV8, QB Wings, Standard Build Fuse (85% @ April 12)
email: pve95448@bigpond.net.au
Paid dues ... pleased to support DR
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12-06-2013, 10:01 AM
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Join Date: Nov 2009
Location: Littleton, Colorado
Posts: 269
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Plus one more - normal adn build on
As previously mentioned, much more important to ensure "in trail" alignment of the elevators with the HS than it is to match up the horn position. Clamp the elevators to the HS at the counter balance arm and verify in trail condition and then drill the horns.
__________________
Bryan Raley
http://bryansrv8project.blogspot.com/
Building RV8
EAA Chapter 301
CFII/MEI, ATP
SportAir Workshop Graduate x 4: Sheet Metal, RV Building, Electrical, and Composite classes.
Tail Wheel Endorsement Completed
Empennage done, Wings in progress, N462AK reserved.
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12-06-2013, 02:36 PM
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Join Date: Apr 2011
Location: SF East Bay
Posts: 852
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Pretty normal. I had a similar issue, spoke to Van's and they said build on.
pic from my build thread
__________________
Sam
RV-8 with the Showplanes Fastback conversion
Emp completed except for glass work
Wings completed except for bottom skin and glass work
Fuselage underway
N18451 reserved
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12-09-2013, 10:59 AM
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Join Date: Aug 2010
Location: Flesherton, ON
Posts: 33
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Thanks
Thanks everyone for the quick replies.
I will build on!!
Cheers
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