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02-27-2017, 10:30 AM
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Join Date: Jan 2009
Location: Chino, CA
Posts: 202
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I agree something doesn't look right on push pull tube, it would make me very nervous, also don't like the way vertical support ground out
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Jerry Scott
Rocket II
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02-27-2017, 11:40 AM
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Join Date: Jan 2007
Location: Battleground
Posts: 4,348
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Quote:
Originally Posted by RV Jerry
I agree something doesn't look right on push pull tube, it would make me very nervous, also don't like the way vertical support ground out
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I would want the factories opinion on the ground away vertical angle. It looks like they ground it out for clearance of the rivet shop head before they realized a spacer goes between the angle and HS Spar. It wouldn't be any issue if just the spacer was ground down.
Having a notch at the center line of the bolt bothers me as that is where the stress will be concentrated.
Van's designs are pretty bullet proof and often over engineered. This may or may not be a problem but I would want a second opinion.
Push rod end fitting isn't what I am used to seeing either but I am not familiar with how the 4 is done. the 6, 7, etc.... is riveted around the tube as mentioned.
Posting pics here gets you no shortage of opinions but I think you are getting some good advice.
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Smart People do Stupid things all the time. I know, I've seen me do'em.
RV6 - Builder/Flying
Bucker Jungmann
Fiat G.46 -(restoration in progress, if I have enough life left in me)
RV1 - Proud Pilot.
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03-08-2017, 07:19 PM
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Join Date: May 2005
Location: X35 - Ocala, FL
Posts: 3,679
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Found this today on a condition inspection.

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Jesse Saint
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03-19-2017, 09:12 PM
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Join Date: Apr 2012
Location: Warrensburg, MO
Posts: 58
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Quote:
Originally Posted by Bavafa
The rivets on the elevator push rod is not what I have seen in the past. In a RV7, there are (I believe 8) that goes around and not in one row.
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Checked the plans, the plans call for the rivets just as they are built in the plane. I don't know why Van's changed it from a line to round with the new plans though...
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07-01-2017, 07:18 PM
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Join Date: Jul 2005
Location: Bolingbrook, Illiniois
Posts: 254
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What's the real shim size?
Quote:
Originally Posted by WingsOnWheels
Dan,
Per Vans, I used 0.125 2024 T3. Good eye, there is an additional 0.63 spacer in there as well. I did raise the rear spar to compensate and allow for the extra thickness of the gussets. So, without the shims the HS is located per plans.
The shims were added per the testing done by Bob Axiom and other RV-6 builders that found an .063 spacer trimmed the HS out a little better. It has been a couple years, so I would have to go back to my log to verify all this, but that is what I recall.
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I made the gussets like Colin was nice enough to give me the dimensions for and now am ready for the HS to be drilled and mounted. So here's the confusion. My RV-6A is a non prepunched '90's kit. In the construction manual there is no call out for a shim. On the plans sheet 34 it shows a .125 shim and in Colin's message above he calls out a .063 shim but has allowed for the gusset thickness on the rear spar. What is the current wisdom on what size shim to use?
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Paul
N694BP reserved
RV-6A Very Slow Build!
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07-01-2017, 09:03 PM
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Join Date: Jan 2005
Location: 57AZ - NW Tucson area
Posts: 10,011
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Quote:
Originally Posted by Jesse
Found this today on a condition inspection.

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" If at first you don't suceed, try and try again" may not be a good motto for drilling the horizontal stab mounting holes... 
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Gil Alexander
EAA Technical Counselor, Airframe Mechanic
Half completed RV-10 QB purchased
RV-6A N61GX - finally flying
Grumman Tiger N12GA - flying
La Cholla Airpark (57AZ) Tucson AZ
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07-02-2017, 06:29 AM
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Super Moderator
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Join Date: May 2005
Location: Locust Grove, GA
Posts: 2,627
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Mind boggling!
Vic
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 Vic Syracuse
Built RV-4, RV-6, 2-RV-10's, RV-7A, RV-8, Prescott Pusher, Kitfox Model II, Kitfox Speedster, Kitfox 7 Super Sport, Just Superstol, DAR, A&P/IA, EAA Tech Counselor/Flight Advisor, CFII-ASMEL/ASES
Kitplanes "Unairworthy" monthly feature
EAA Sport Aviation "Checkpoints" column
EAA Homebuilt Council Chair/member EAA BOD
Author "Pre-Buy Guide for Amateur-Built Aircraft"
www.Baselegaviation.com
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07-02-2017, 08:12 AM
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Join Date: Jan 2007
Location: Battleground
Posts: 4,348
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Quote:
Originally Posted by pczar3
I made the gussets like Colin was nice enough to give me the dimensions for and now am ready for the HS to be drilled and mounted. So here's the confusion. My RV-6A is a non prepunched '90's kit. In the construction manual there is no call out for a shim. On the plans sheet 34 it shows a .125 shim and in Colin's message above he calls out a .063 shim but has allowed for the gusset thickness on the rear spar. What is the current wisdom on what size shim to use?
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Follow the plans. Occasionally, I have seen folks mess with the shim thickness later if the elevator isn't perfectly in trail. However, reports seem to negate the impact of doing that. It doesn't seem to affect much and requires rework of the empennage fairing.
You would want to take into account the thickness of any added things like gussets or doublers.
__________________
Smart People do Stupid things all the time. I know, I've seen me do'em.
RV6 - Builder/Flying
Bucker Jungmann
Fiat G.46 -(restoration in progress, if I have enough life left in me)
RV1 - Proud Pilot.
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07-02-2017, 12:37 PM
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Join Date: Jul 2005
Location: Bolingbrook, Illiniois
Posts: 254
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HS shim size
Thanks for the quick reply Jon. That's the direction I'll go since the gusset is 1/8 that works out to the same as the plans. Thanks again.
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Paul
N694BP reserved
RV-6A Very Slow Build!
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