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  #1  
Old 03-07-2019, 05:32 PM
AviatorJ AviatorJ is offline
 
Join Date: Feb 2015
Location: Oklahoma City
Posts: 974
Default Wing Tip Spliting

Having a heavy wing issue. I corrected some of it by rerigging the right aileron which was off by a good 1/8-1/2 inch. I flew today and while it's much improved it's still heavy on the left side.

Looking at my wing tips, they're not aligned with the ailerons, which are aligned with the flaps, which are aligned with the bottom of the fuselage. There's no control surface twists either, all the rivets line up. Here are a few pictures.

Here's the right side -



Here's the left side, which isn't off as much -



To me it makes sense to correct the right one first. Go fly and if I then have a heavy right wing then correct the left one.

I'm not 100% sure on the technique used to do all this. I'm guessing you just dremel across and 'split' the trailing edge. Then pull it up where it's level with the aileron. Then drill some reference holes to cleco later. Sand the inside flox back together and cleco to dry.

Does that sound about right? If I cut too much off when splitting can I fill with milled fiberglass vs flox or maybe use some fabric?

Thanks!
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  #2  
Old 03-07-2019, 05:46 PM
Kyle Boatright Kyle Boatright is online now
 
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You don't need to cut anything off. Just split it down the "fold".
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  #3  
Old 03-07-2019, 05:59 PM
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N941WR N941WR is offline
 
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Location: SC
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Quote:
Originally Posted by Kyle Boatright View Post
You don't need to cut anything off. Just split it down the "fold".
That's exactly what I did. Cut it down the trailing edge and up the side. Pulled it into position, drilled and clecoed it. On the inside I put some fiberglass cloth to hold everything in position then filled the cut line with a mixture of micro.

Easy enough to do.
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  #4  
Old 03-07-2019, 05:59 PM
AviatorJ AviatorJ is offline
 
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Quote:
Originally Posted by Kyle Boatright View Post
You don't need to cut anything off. Just split it down the "fold".
I'm not the straightest of dremelers. I may end up inadvertently taking extra material off.
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  #5  
Old 03-07-2019, 06:09 PM
Kyle Boatright Kyle Boatright is online now
 
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Quote:
Originally Posted by AviatorJ View Post
I'm not the straightest of dremelers. I may end up inadvertently taking extra material off.
Use a hacksaw blade if your dremel-fu is weak.
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  #6  
Old 03-07-2019, 06:20 PM
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Mel Mel is online now
 
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This is indeed a fairly simple fiberglass job, but don't expect to see much change in "roll".
Although it is far out on the wing and has the "arm", it is a small area and has little effect.
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  #7  
Old 03-07-2019, 08:07 PM
BillL BillL is offline
 
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Location: Central IL
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Quote:
Originally Posted by Mel View Post
This is indeed a fairly simple fiberglass job, but don't expect to see much change in "roll".
Although it is far out on the wing and has the "arm", it is a small area and has little effect.
Exactly - - fix the heavy wing first then align the tips. My aileron alignment in flight was drastically reduced once the cause of the heavy wing was corrected, same on my 7 and a friends 10. So - fix the roll first or they won't be inline after you do anyway.
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  #8  
Old 03-07-2019, 09:09 PM
AviatorJ AviatorJ is offline
 
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Location: Oklahoma City
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So based on those pictures there?s no thought that it may be causing me to roll left with my hands off the stick? This is with two full tanks and my aileron trim all the way to the right. Ball centered, straight and level.

My previous aileron adjustment improved it a bit.... maybe bring it up (right side) some more?
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  #9  
Old 03-07-2019, 10:28 PM
gasman gasman is offline
 
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How does it fly with the same weight in each seat?....... and trim centered.
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  #10  
Old 03-07-2019, 10:35 PM
rv7charlie rv7charlie is offline
 
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Location: Pocahontas MS
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FWIW, on the -7 you can rotate the tip in the wing by more than you'd need to correct that much variation. Might be the same for the -10. It would obviously require redrilling the attachment holes.
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