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Aileron and Flap Rigging

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ScooterF15

Joined: 19 Jun 2006
Posts: 136

Posted: Thu Oct 26, 2006 3:11 pm Post subject: Aileron and Flap Rigging

I have a question about how other people adjusted the flaps and ailerons.  The directions are a little unclear. The following is what I did and the  assumptions I made. Did any one do something different?

  

 For the flap adjustment: Per the plans I lifted the flap up until it  contacted the aft spar of the wing; this is the full up (reflex) position of the  flaps. I adjusted the pushrod accordingly. Incidentally, this adjustment  coincided with the trailing edge of the flap flush with the underside of the  fuselage. That seemed aerodynamically and aesthetically pleasing.

  

 I adjusted the neutral position of the ailerons to match the reflexed  position of the flaps. I did this so I would not have more camber on the outer  portions of the wing while the flaps were in the reflex position (as that might  cause the outer portions of the wing to stall first, leading to less than  optimum stall characteristics). Furthermore, if I want my flaps reflexed for  better cruise performance, why not my ailerons as well. This made aerodynamic  sense to me, but the plans did not offer any guidance.

  

 Finally, when installing the wingtips I found that the wingtip rib did not  line up with my ailerons as they were adjusted (the trailing of the wingtip sat  lower than the ailerons in the neutral position). I made it work but the  wingtips don't look quite right. The plane flies great, but it seems like  something isn't quite right.

  

 Thanks for your help

 Jim

 40134

  

 Jim "Scooter"  McGrew

http://www.mit.edu/~jsmcgrew

  [quote][b]

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flysrv10(at)gmail.com
Guest

Posted: Fri Oct 27, 2006 2:12 am Post subject: Aileron and Flap Rigging

It has been a while since I did mine.  You did the flap as I remember it but the step missing in your aileron set up is setting the position with an aluminum jig that comes with your kit..

do not archive



 Rob Kermanj



 



On Oct 26, 2006, at 7:10 PM, JSMcGrew(at)aol.com (JSMcGrew(at)aol.com) wrote:

[quote]  I have a question about how other people adjusted the flaps and ailerons. The directions are a little unclear. The following is what I did and the assumptions I made. Did any one do something different?

  

 For the flap adjustment: Per the plans I lifted the flap up until it contacted the aft spar of the wing; this is the full up (reflex) position of the flaps. I adjusted the pushrod accordingly. Incidentally, this adjustment coincided with the trailing edge of the flap flush with the underside of the fuselage. That seemed aerodynamically and aesthetically pleasing.

  

 I adjusted the neutral position of the ailerons to match the reflexed position of the flaps. I did this so I would not have more camber on the outer portions of the wing while the flaps were in the reflex position (as that might cause the outer portions of the wing to stall first, leading to less than optimum stall characteristics). Furthermore, if I want my flaps reflexed for better cruise performance, why not my ailerons as well. This made aerodynamic sense to me, but the plans did not offer any guidance.

  

 Finally, when installing the wingtips I found that the wingtip rib did not line up with my ailerons as they were adjusted (the trailing of the wingtip sat lower than the ailerons in the neutral position). I made it work but the wingtips don't look quite right. The plane flies great, but it seems like something isn't quite right.

  

 Thanks for your help

 Jim

 40134

  

 Jim "Scooter" McGrew

http://www.mit.edu/~jsmcgrew

  	  Quote: 	
		  

href="http://www.matronics.com/Navigator?RV10-List">http://www.matronics.com/Navigator?RV10-List

ntribution



	
[b]

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ScooterF15

Joined: 19 Jun 2006
Posts: 136

Posted: Fri Oct 27, 2006 3:26 am Post subject: Aileron and Flap Rigging

Just to clarify, I used the aluminum jig per the plans: that is used to set  the proper position of the bellcrank inside the wing for neutral aileron  position. I guess my question is, what did you use for neutral aileron: did you  align them with the flaps at reflex position or flaps at the 0 degree setting,  or something else?

  

  Jim "Scooter"  McGrew

http://www.mit.edu/~jsmcgrew

  



 In a message dated 10/27/2006 6:15:36 A.M. Eastern Daylight Time,  flysrv10(at)gmail.com writes:

  	  Quote: 	
		  It has    been a while since I did mine.  You did the flap as I remember it    but the step missing in your aileron set up is setting the position with an    aluminum jig that comes with your kit..    

   do not archive

   

      Rob Kermanj

   

      On Oct 26, 2006, at 7:10 PM, JSMcGrew(at)aol.com (JSMcGrew(at)aol.com) wrote:

    	  Quote: 	
		       I have a question about how other people adjusted the flaps and      ailerons. The directions are a little unclear. The following is what I did      and the assumptions I made. Did any one do something different?

      

     For the flap adjustment: Per the plans I lifted the flap up until it      contacted the aft spar of the wing; this is the full up (reflex) position of      the flaps. I adjusted the pushrod accordingly. Incidentally, this adjustment      coincided with the trailing edge of the flap flush with the underside of the      fuselage. That seemed aerodynamically and aesthetically pleasing.

      

     I adjusted the neutral position of the ailerons to match      the reflexed position of the flaps. I did this so I would not have more      camber on the outer portions of the wing while the flaps were in the reflex      position (as that might cause the outer portions of the wing to stall first,      leading to less than optimum stall characteristics). Furthermore, if I want      my flaps reflexed for better cruise performance, why not my ailerons as      well. This made aerodynamic sense to me, but the plans did not offer any      guidance.

      

     Finally, when installing the wingtips I found that the wingtip rib did      not line up with my ailerons as they were adjusted (the trailing of the      wingtip sat lower than the ailerons in the neutral position). I made it work      but the wingtips don't look quite right. The plane flies great, but it seems      like something isn't quite right.

      

     Thanks for your help

     Jim

     40134

      

     Jim      "Scooter" McGrew

http://www.mit.edu/~jsmcgrew

 	  Quote: 	
		  

href="http://www.matronics.com/Navigator?RV10-List">http://www.matronics.com/Navigator?RV10-List

ntribution



	




="http://www.matronics.com/Navigator?RV10-List">http://www.matronics.com/Navigator?RV10-List

.matronics.com/">http://forums.matronics.com

ronics.com/">http://wiki.matronics.com

://www.matronics.com/contribution">http://www.matronics.com/contribution



	
	


 



  

 Jim "Scooter"  McGrew

http://www.mit.edu/~jsmcgrew  

  [quote][b]

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flysrv10(at)gmail.com
Guest

Posted: Fri Oct 27, 2006 4:03 am Post subject: Aileron and Flap Rigging

I set the ailerons at "reflex position".  I do not remember any confusion regarding the position of the flap and ailerons in the manual.  I did however readjust the left wing-tip alignment by slicing the trailing edge and matching it with the aileron.  I would have been better off doing the wing tips after the control surfaces were installed to get the best fit.do not archive

 Rob Kermanj



 



On Oct 27, 2006, at 7:26 AM, JSMcGrew(at)aol.com (JSMcGrew(at)aol.com) wrote:

[quote]    Just to clarify, I used the aluminum jig per the plans: that is used to set the proper position of the bellcrank inside the wing for neutral aileron position. I guess my question is, what did you use for neutral aileron: did you align them with the flaps at reflex position or flaps at the 0 degree setting, or something else?

  

  Jim "Scooter" McGrew

http://www.mit.edu/~jsmcgrew

  



 In a message dated 10/27/2006 6:15:36 A.M. Eastern Daylight Time, flysrv10(at)gmail.com (flysrv10(at)gmail.com) writes:

  	  Quote: 	
		  It has   been a while since I did mine.  You did the flap as I remember it   but the step missing in your aileron set up is setting the position with an   aluminum jig that comes with your kit..   

  do not archive

  

    Rob Kermanj

  

    On Oct 26, 2006, at 7:10 PM, JSMcGrew(at)aol.com (JSMcGrew(at)aol.com) wrote:

   	  Quote: 	
		      I have a question about how other people adjusted the flaps and     ailerons. The directions are a little unclear. The following is what I did     and the assumptions I made. Did any one do something different?

     

    For the flap adjustment: Per the plans I lifted the flap up until it     contacted the aft spar of the wing; this is the full up (reflex) position of     the flaps. I adjusted the pushrod accordingly. Incidentally, this adjustment     coincided with the trailing edge of the flap flush with the underside of the     fuselage. That seemed aerodynamically and aesthetically pleasing.

     

    I adjusted the neutral position of the ailerons to match     the reflexed position of the flaps. I did this so I would not have more     camber on the outer portions of the wing while the flaps were in the reflex     position (as that might cause the outer portions of the wing to stall first,     leading to less than optimum stall characteristics). Furthermore, if I want     my flaps reflexed for better cruise performance, why not my ailerons as     well. This made aerodynamic sense to me, but the plans did not offer any     guidance.

     

    Finally, when installing the wingtips I found that the wingtip rib did     not line up with my ailerons as they were adjusted (the trailing of the     wingtip sat lower than the ailerons in the neutral position). I made it work     but the wingtips don't look quite right. The plane flies great, but it seems     like something isn't quite right.

     

    Thanks for your help

    Jim

    40134

     

    Jim     "Scooter" McGrew

http://www.mit.edu/~jsmcgrew

 	  Quote: 	
		  href="http://www.matronics.com/Navigator?RV10-List">http://www.matronics.com/Navigator?RV10-List

ntribution



	


="http://www.matronics.com/Navigator?RV10-List">http://www.matronics.com/Navigator?RV10-List

.matronics.com/">



	
	


 



  

 Jim "Scooter" McGrew

http://www.mit.edu/~jsmcgrew 

  	  Quote: 	
		  

href="http://www.matronics.com/Navigator?RV10-List">http://www.matronics.com/Navigator?RV10-List

ntribution



	
[b]

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egohr1

Joined: 17 Jan 2006
Posts: 38
Location: Oklahoma City

Posted: Fri Oct 27, 2006 8:45 am Post subject: Re: Aileron and Flap Rigging

The instructions are clear.  Look in the section of winngs for the rigging instructions.



Flaps set at all the way against the rear spar.



Alierons - Bell crank netrual with the jig, Line up with the flaps.



I then set the tips to the ailerons. (note All this was done in the shop, ass the fuse is wtill a work in progress)

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eric gohr
EGOHR86@alumni.carnegiemellon.edu

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