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  #121  
Old 02-27-2017, 10:30 AM
RV Jerry RV Jerry is offline
 
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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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  #122  
Old 02-27-2017, 11:40 AM
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Quote:
Originally Posted by RV Jerry View Post
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
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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  #123  
Old 03-08-2017, 07:19 PM
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Found this today on a condition inspection.

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  #124  
Old 03-19-2017, 09:12 PM
TeamFAS TeamFAS is offline
 
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Quote:
Originally Posted by Bavafa View Post
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.
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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  #125  
Old 07-01-2017, 07:18 PM
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pczar3 pczar3 is offline
 
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Location: Bolingbrook, Illiniois
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Red face What's the real shim size?

Quote:
Originally Posted by WingsOnWheels View Post
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.
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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  #126  
Old 07-01-2017, 09:03 PM
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Quote:
Originally Posted by Jesse View Post
Found this today on a condition inspection.

"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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  #127  
Old 07-02-2017, 06:29 AM
vic syracuse vic syracuse is online now
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Mind boggling!

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  #128  
Old 07-02-2017, 08:12 AM
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Quote:
Originally Posted by pczar3 View Post
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?
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.
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  #129  
Old 07-02-2017, 12:37 PM
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pczar3 pczar3 is offline
 
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Thumbs up 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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