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Reload this Page Aileron Pushrod - rear spar hole clearance
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  #1  
Old 05-28-2008, 01:25 PM
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rph142 rph142 is offline
 
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Default Aileron Pushrod - rear spar hole clearance
My aileron pushrod is contacting the top of the rear spar hole when the ailerons are near neutral position. It looks like ill need to take 1/8"-3/16" off the top of this hole before i get enough clearance. Is this common/OK? Thanks in advance.
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Old 05-28-2008, 04:01 PM
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RVG8tor RVG8tor is offline
 
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Default Mine don't
Steve,

You wild and crazy guy Sorry I could not resist. I just did this on my left wing and mine do not touch in the neutral position. They also don't touch when I run the aileron through the upper ends of the travel limits (32 up to 17 down). I think some have had issues with this, but it might be the rivets in the push rods. Is the rod touching or is it just one of the rivets? I had the rod ends welded on my mine. I will say that the push rod gets real close to the rear spar but it does not touch.

Hopefully someone else will chime in and show us some pictures of theirs.

Cheers
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  #3  
Old 05-28-2008, 04:11 PM
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Rob--

Double check your bellcrank installation and the drawing for the bellcrank...

I found it pretty easy to get things out of order/backwards, which definitely leads to interference. I re-installed--correctly--and everything was clear


Joe
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Old 05-28-2008, 04:58 PM
RatMan RatMan is offline
 
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Quote:
Originally Posted by rph142 View Post
My aileron pushrod is contacting the top of the rear spar hole when the ailerons are near neutral position. It looks like ill need to take 1/8"-3/16" off the top of this hole before i get enough clearance. Is this common/OK? Thanks in advance.
Rob,

I don't think this is an issue on the match-holed kits such as the -8 but it looks like you will need the advice of a -3 builder to confirm this for you.
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  #5  
Old 05-28-2008, 05:49 PM
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Its the actual bar that is rubbing, which means the rivets will be a larger problem. No matched holes on this kit. I talked to vans and they said to take out what is needed because there is a doubler there. It seems like it would be a bad idea to take out material from the web of this spar.
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Rob Holmes
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The minimum number of planes one should own is one. The correct number is n+1, where n is the number of planes currently owned. This equation may also be re-written as s-1, where s is the number of planes owned that would result in separation from your partner.

- Veluminati
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  #6  
Old 05-28-2008, 06:05 PM
Rupester Rupester is offline
 
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What Rob said. On my 9A the aileron p-rod didn't rub in neutral position, but did under substantial movement. Vans said to grind out the rr spar hole as necessary. ALso said the problem was fairly common.
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  #7  
Old 05-28-2008, 09:51 PM
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My six needed some hole enlarging on one side.
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  #8  
Old 05-29-2008, 08:51 AM
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Well I just got off the phone with vans again today. They said its actually OK to take that hole all the way to the spar flange if necessary. I wont have to go quite that far, but that is comforting.
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Rob Holmes
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N59LG
The minimum number of planes one should own is one. The correct number is n+1, where n is the number of planes currently owned. This equation may also be re-written as s-1, where s is the number of planes owned that would result in separation from your partner.

- Veluminati
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