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  #1  
Old 05-14-2022, 02:08 PM
Sully73 Sully73 is offline
 
Join Date: Jul 2020
Location: Lincoln, NE
Posts: 39
Default Aileron and Flaps Install

I installed my flaps and ailerons. I matched the trailing edge (TE) of the ailerons to the wing tips then lined up the flaps TE to the ailerons TE. Everything looked good until I looked underneath and found the inboard TE of the right flap was 1/2 inch higher than the LH side. Any ideas?
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  #2  
Old 05-14-2022, 02:13 PM
Carl Froehlich's Avatar
Carl Froehlich Carl Froehlich is offline
 
Join Date: Dec 2007
Location: Dogwood Airpark (VA42)
Posts: 3,752
Default

Yes, reverse the process.

- Get the flaps all the way up, and left side same as right side.
- Align the aileron trailing edge with the flap trailing edge.
- Verify the ailerons are hung the same (up, down, in, out) not just the same trailing edge height.
- Now fix the wing tip to match the aileron trailing edge.

Side note - I recommend builders defer the wing tip until aileron and flap rigging complete - and verified with another set of eyes.

Carl
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  #3  
Old 05-14-2022, 02:38 PM
gasman gasman is offline
 
Join Date: Mar 2007
Location: Sonoma County
Posts: 4,451
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Use your airfoil pattern to set your ailerons. Then fit your flaps to your ailerons. Last, fit your wing tips to your ailerons.
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  #4  
Old 05-14-2022, 02:56 PM
Richard Connell Richard Connell is offline
 
Join Date: Aug 2006
Location: Sydney Australia
Posts: 382
Default RTM

Iím 99% sure for the 4 you need to line up the tooling holes with the TE.
or use the pattern as suggested above.
Ailerons first. Match flaps and tips to them.
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  #5  
Old 05-19-2022, 06:25 AM
Sully73 Sully73 is offline
 
Join Date: Jul 2020
Location: Lincoln, NE
Posts: 39
Default Thanks

Thanks to all for taking the time to help me. I will try your ideas and let you know what I find out
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  #6  
Old 05-23-2022, 06:18 PM
Sully73 Sully73 is offline
 
Join Date: Jul 2020
Location: Lincoln, NE
Posts: 39
Default Re-checked

Chapter Two:
I removed the wing tips, found the tooling holes in the last stringer and confirmed that the outboard corners of the ailerons are in the correct position.
Then I made a jig that measured the height of the TE relative to the top of the spar.
Left Aileron: I found that the TE of inboard end is 1/4" lower than the outboard end.
Right Aileron: I found that the TE of inboard end is 1/4" higher than the outboard end.

I assume this means I have a twist in the ailerons. Or could it mean that the attach points are off.
Bottom Line is.. This bothers me that the TEs don't line up perfectly but is this something I should be concerned about in terms of safety?
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  #7  
Old 05-23-2022, 06:29 PM
Carl Froehlich's Avatar
Carl Froehlich Carl Froehlich is offline
 
Join Date: Dec 2007
Location: Dogwood Airpark (VA42)
Posts: 3,752
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Perhaps not a twist, just hung wrong.

I suggest you order a set of ďno holeĒ aileron brackets from Vanís. Decide where to put the new holes to get the ailerons moved the way you want them. Do a practice hole on the old bracket to verify you got the right place.

Remember, two directions for each new hole; up/down and in/out.

Carl
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  #8  
Old 05-23-2022, 06:34 PM
FinnFlyer FinnFlyer is offline
 
Join Date: Aug 2018
Location: Bell, FL
Posts: 671
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A twist should be easy to see if you lay the aileron on a flat table.
Same with flaps.

Using tooling holes did not work well for me. Ordering the paper template from Van's, using carbon paper to trace it on and cutting 3/4" particle board worked well.

Finn
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  #9  
Old 06-19-2022, 10:22 PM
Little Al Little Al is offline
 
Join Date: Sep 2014
Location: Osage, Iowa
Posts: 40
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I did the tooling hole method. Even when before final rigging to get the aileron hinge brackets mounted to wing. Easy to get it off just a little to where tooling hole method will not work. Do not start with wing tips.
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