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wingtip suggestions

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Eric_Kallio

Joined: 29 Jan 2006
Posts: 149
Location: Baton Rouge, LA

Posted: Sun Jun 03, 2007 5:29 am Post subject: wingtip suggestions

I am finishing up the wings so I can start to inventory the fuse kit and am having issues with the wingtips. The left wingtip is about 1/2 inch short but it is straight so I can just lay-up and sand down successive layers of glass. The right wingtip however is both 1/4 inch short and the trailing edge is about 3/8 inch below the rigged aileron and flap trailing edges. Hopefully I was successful at attaching the pictures below. Has anyone had this same issue and came up with a good way to fix it or any suggestions? Otherwise I will probably cut off the end aft of the tip rib and layup a new trailing edge. Thanks.



Eric Kallio

40518 finishing wingtips and waiting to inventory fuselage

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right wingtip looking outboard.JPG

Description:

looking outboard at right wingtip. Top skin is on the left in the picture.

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Right wingtip looking inboard.JPG

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Looking inboard at the right wing. the top skin is to the right on the picture.

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Deems Davis

Joined: 09 Jan 2006
Posts: 925

Posted: Sun Jun 03, 2007 6:00 am Post subject: wingtip suggestions

Eric,



It's difficult to see from the pics attached, and pictures can sometimes 

be deceptive. In the picture that looks outboard it appears that the 

aileron may have a twist in it and that might account for some of the 

misalignment.  ? :-\



Deems Davis # 406

Baffling / Plenum / Engine Stuff

http://deemsrv10.com/

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jchang10

Joined: 05 Jul 2006
Posts: 227

Posted: Sun Jun 03, 2007 7:40 am Post subject: wingtip suggestions

That was my first thought as well. is the aileron twisted or the wing tip?



jae

40533

www.jline.com/rv10



Deems Davis wrote:

 	  Quote: 	
		   



 Eric,



 It's difficult to see from the pics attached, and pictures can 

 sometimes be deceptive. In the picture that looks outboard it appears 

 that the aileron may have a twist in it and that might account for 

 some of the misalignment.  ? :-\



 Deems Davis # 406

 Baffling / Plenum / Engine Stuff

 http://deemsrv10.com/

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_________________
#40533 RV-10
First flight 10/19/2011
Phase 1 Done 11/26/2011

davelammers(at)mchsi.com
Guest

Posted: Sun Jun 03, 2007 8:30 am Post subject: wingtip suggestions

Eric,

 

 The following applies to your right (don't know about your left).

 I just went through this last week.

 Your holes are probably off just a tiny bit (mine were).  My guess is about a half the diameter of the hole.  It doesn't take much.

 Here is what I did.

 Epoxy the holes closed.  Sounds like a lot of work but takes about 10 minutes. (one day to harden)

 Temporarily install the tip rib (with tape or something).  This really helps!

 Now reinstall but this time be much more careful about alignment as you cleco and drill.  I used strap clamps.

 It will work out for you just fine.  No easy fix.

 Good luck.

 

 Dave Lammers

 

 

 

 

 

 

 Eric_Kallio wrote:

 [quote]    	  Quote: 	
		  --> RV10-List message posted by: "Eric_Kallio" <scout019(at)msn.com> (scout019(at)msn.com)



I am finishing up the wings so I can start to inventory the fuse kit and am having issues with the wingtips. The left wingtip is about 1/2 inch short but it is straight so I can just lay-up and sand down successive layers of glass. The right wingtip however is both 1/4 inch short and the trailing edge is about 3/8 inch below the rigged aileron and flap trailing edges. Hopefully I was successful at attaching the pictures below. Has anyone had this same issue and came up with a good way to fix it or any suggestions? Otherwise I will probably cut off the end aft of the tip rib and layup a new trailing edge. Thanks.



Eric Kallio

40518 finishing wingtips and waiting to inventory fuselage





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http://forums.matronics.com/viewtopic.php?p=116129#116129





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jesse(at)saintaviation.co
Guest

Posted: Sun Jun 03, 2007 1:25 pm Post subject: wingtip suggestions

The trailing edge of your wingtip can easily ride too high or too low if you

don't align it correctly before you drill the holes.  Since the fiberglass

is not very thick and is thus not super-rigid, it can actually "twist"

around the radius of the leading edge, which will pull the trailing edge

either up or down accordingly.  At least this is my experience.  I have

usually seen that the tip is longer than needed, not shorter, but this could

easily be a modification of the mold or a different in the lay-up of the

glass.  I agree that you should make sure your flap and aileron don't have a

twist (more likely in the flap), but the tip can run high or low depending

on how it is installed, independent of the aileron/flap rigging.  



If you see that the wingtip is not right, then you may want to either

replace it or could probably find a way to re-glass your holes and redo

them.  I personally like the hinge installation format as it makes it much

easier to install and remove as compared to 60+ screws, IMHO.  Let me know

if this installation interests you and you can probably salvage the wingtip

if this even applies.



I hope this helps.



Jesse Saint

Saint Aviation, Inc.

jesse(at)saintaviation.com

www.saintaviation.com

Cell: 352-427-0285

Fax: 815-377-3694

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Eric_Kallio

Joined: 29 Jan 2006
Posts: 149
Location: Baton Rouge, LA

Posted: Sun Jun 03, 2007 1:29 pm Post subject: Re: wingtip suggestions

Dave, I will try to align the rib again. The pics are deceiving a bit. I never proclaimed to be a photographer. The aileron is straight as an arrow, picture is a bit off center. A twisted aileron would have gone into the scrap metal pile. I really had to wrestle with the wingtip to get it as close as it is. It has a real good twist to it. I will keep trying to reset it and see what happens.

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dlm46007(at)cox.net
Guest

Posted: Sun Jun 03, 2007 3:07 pm Post subject: wingtip suggestions

Has anyone suggested heating the tip (heat gun) and pressuring it into

alignment until it cools?



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