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Rudder Trim

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rleffler

Joined: 05 Nov 2006
Posts: 680

Posted: Tue Feb 13, 2007 5:01 pm Post subject: Rudder Trim

For those that are flying or already installed the Vic Syracuse style rudder trim, I’m trying to determine the vertical placement of the hinge.   If I center it on the rudder, the servo would have to go where the rib R-1010D is located.   From looking at Vic’s pictures, it appears that the hinge may be dropped down four or five inches from the center.  I’m trying to determine the impact of the trim not being center on rudder.  

   

Is there any impact of if the trim hinge is lower on the rudder trailing edge?  

   

What height on the trailing edge of the rudder did you install the rudder?  

   

Thanks,  

   

Bob  

   

        [quote][b]

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_________________
Bob Leffler
N410BL - Phase I
http://mykitlog.com/rleffler

Tim Olson

Joined: 25 Jan 2007
Posts: 2879

Posted: Tue Feb 13, 2007 7:33 pm Post subject: Rudder Trim

I don't know that it would matter a huge amount if it's higher or lower,

but you probably want to keep it a little distant from the Horizontal

stab so that the wash from that doesn't affect the rudder trim.  I

just planned on looking at Vic's photos closely and counting rivets

and trying to basically duplicate the positioning.  I think Ed Hayden

did a good copy of that design and also did some creative work getting

the wiring to run down the leading edge inside the rudder.   The

tab itself though is often found not necessarily centered on the

rudder so I'd just look for a good looking place for it.



Tim Olson - RV-10 N104CD - Flying

do not archive

Bob Leffler wrote:

 	  Quote: 	
		   For those that are flying or already installed the Vic Syracuse style 

 rudder trim, I’m trying to determine the vertical placement of the 

 hinge.   If I center it on the rudder, the servo would have to go where 

 the rib R-1010D is located.   From looking at Vic’s pictures, it appears 

 that the hinge may be dropped down four or five inches from the center.  

 I’m trying to determine the impact of the trim not being center on rudder.

 

 Is there any impact of if the trim hinge is lower on the rudder trailing 

 edge?

 

 What height on the trailing edge of the rudder did you install the rudder?

 

 Thanks,


	


 	  Quote: 	
		   Bob

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jesse(at)saintaviation.co
Guest

Posted: Tue Feb 13, 2007 9:12 pm Post subject: Rudder Trim

At first thought, it probably is not any more necessary to have it centered than it is to have the control cables connected to the center of the rudder.  I may be wrong, but that makes sense to me.  Tim’s comment about the affect of the elevator makes sense as well.  My main thought is getting the wires to it, although I would think the absolute best place for it would be high enough that people don’t bump into it when walking around the plane.  

   

Do not archive.  

     

Jesse Saint  

Saint Aviation, Inc.  

jesse(at)saintaviation.com (jesse(at)saintaviation.com)  

www.saintaviation.com  

Cell: 352-427-0285  

Fax: 815-377-3694  

        

  

From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Bob Leffler

 Sent: Tuesday, February 13, 2007 8:01 PM

 To: rv10-list(at)matronics.com

 Subject: Rudder Trim  

  

   

For those that are flying or already installed the Vic Syracuse style rudder trim, I’m trying to determine the vertical placement of the hinge.   If I center it on the rudder, the servo would have to go where the rib R-1010D is located.   From looking at Vic’s pictures, it appears that the hinge may be dropped down four or five inches from the center.  I’m trying to determine the impact of the trim not being center on rudder.  

   

Is there any impact of if the trim hinge is lower on the rudder trailing edge?  

   

What height on the trailing edge of the rudder did you install the rudder?  

   

Thanks,  

   

Bob  

   [quote]   [b]

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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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