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Measure RUDDER Deflection (Swing) Angle

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gmvouga(at)hotmail.com
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Posted: Mon Jun 22, 2009 3:26 am Post subject: Measure RUDDER Deflection (Swing) Angle

I used a protractor and straight edge to mark the angle on a piece of cardboard.  Then I cut the carboard so I had a large piece with the correct angle that I could hold up to the rudder and VS when it was mounted on the plane.  Dirt simple C but it worked.



  

 Greg

 RV-7A

 Raleigh C NC (5W5) 

  Date: Sun C 21 Jun 2009 20:51:05 -0700

From: gareywittich2000(at)yahoo.com

Subject: Measure RUDDER Deflection (Swing) Angle

To: rv-list(at)matronics.com



    Greetings: 

 Have my VS mounted to the work bench along with the Rudder attached.  Trying to verify the 35 degree travel on the Rudder to the Left and Right of Neutral.  Seen no Archieves on how to measure the angle other than laying the VS and Rudder on the work bench and using "Smart Level" to measure the deflection in the Up & Down positions.  Must be "super simple" to measure it C but for some reason the method is not evident to me (now).

 



 Appreciate your help C    Garey Wittich   Santa Monica C CA

 



 





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steve(at)huttmail.com
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Posted: Mon Jun 22, 2009 12:13 pm Post subject: Measure RUDDER Deflection (Swing) Angle

Garey,  

   

The simple thing to do is to do your sums to find the required angle (with the rudder at max deflection) between the VS skin and the rudder skin.  

Then make up a template out of heavy cardboard shaped to this angle. Hold the template against the VS/rudder and check the deflection matches.  

You need to do this with the VS/rudder mounted on the fuselage as you need to check that the rudder stops are in the correct position and that

 the rudder pedals/cables setup does not introduce any restriction to the range of movement.  

   

Once you’re sure the cardboard template is correct, make a copy out of something tougher like plywood that will last.  

You’ll need to check the rudder range of movement as part of your ongoing maintenance routine.  

   

Regards,  

Steve Hutt  

RV-7  

UK  

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phil(at)petrasoft.net
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Posted: Tue Jun 23, 2009 11:55 am Post subject: Measure RUDDER Deflection (Swing) Angle

You can hang a couple of plumb bobs from the rudder and trace the movement on the floor.  Hang one from the trailing edge and the other from the bottom hinge.

 Phil Birkelbach

Houston RV7 - 727WB

phil(at)petrasoft.net (phil(at)petrasoft.net)

http://www.myrv7.com/



 



On Jun 21, 2009, at 10:51 PM, Garey Wittich wrote:

[quote]Greetings:

Have my VS mounted to the work bench along with the Rudder attached.  Trying to verify the 35 degree travel on the Rudder to the Left and Right of Neutral.  Seen no Archieves on how to measure the angle other than laying the VS and Rudder on the work bench and using "Smart Level" to measure the deflection in the Up & Down positions.  Must be "super simple" to measure it, but for some reason the method is not evident to me (now).

Appreciate your help,    Garey Wittich   Santa Monica, CA



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