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rudder trim

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pitts_pilot(at)bellsouth.
Guest

Posted: Fri Jan 16, 2009 10:25 pm Post subject: rudder trim

I've seen mention of rudder trim made from hinge material.  I'm going 

that route and wonder how effective it is with just the hinge or if 

extra area was needed.



So, for those that didn't cut the rudder and installed 'hinge trim', how 

well does it work, how big (I saw 1') did you make yours, and did you 

have to add a tab on the hinge.

TIA

Linn

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jesse(at)saintaviation.co
Guest

Posted: Sat Jan 17, 2009 6:02 am Post subject: rudder trim

The trims I've used are about 8 inches long by about 1.5 inches wide,  

from my memory.  This is the aerotrim servo and tab (which is now in  

limbo because Norm passed away).  This may allow more trim then I  

expect to use, but with a narrower tab you would have to turn it  

further to trim the plane.  I don't know if that would create more  

drag or not.



Jesse Saint

Saint Aviation, Inc.

jesse(at)saintaviation.com

Cell: 352-427-0285

Fax: 815-377-3694



On Jan 17, 2009, at 1:21 AM, linn Walters wrote:



 	  Quote: 	
		   

 >



 I've seen mention of rudder trim made from hinge material.  I'm  

 going that route and wonder how effective it is with just the hinge  

 or if extra area was needed.



 So, for those that didn't cut the rudder and installed 'hinge trim',  

 how well does it work, how big (I saw 1') did you make yours, and  

 did you have to add a tab on the hinge.

 TIA

 Linn

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Tim Olson

Joined: 25 Jan 2007
Posts: 2879

Posted: Sat Jan 17, 2009 7:52 am Post subject: rudder trim

I think Vic's was 11' or 10'.  You don't need to go

any larger than that, for sure.  And, you don't

need to add any more area to the hinge.  That should

be plenty.  You MAY be able to get by with 8", but it

would deflect more.  I'd say 10-11" works well, without

requiring tons of deflection, and unless you build a

pretty crooked plane, it should work fine for you.



Tim Olson - RV-10 N104CD - Flying

do not archive

linn Walters wrote:

 	  Quote: 	
		   

 

 I've seen mention of rudder trim made from hinge material.  I'm going 

 that route and wonder how effective it is with just the hinge or if 

 extra area was needed.

 

 So, for those that didn't cut the rudder and installed 'hinge trim', how 

 well does it work, how big (I saw 1') did you make yours, and did you 

 have to add a tab on the hinge.

 TIA

 Linn

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chuck(at)chuckdirect.com
Guest

Posted: Sat Jan 17, 2009 9:03 am Post subject: rudder trim

On my RV9A used a piece of Balsa obtained from the local hobby store.  Cut 

and ripped it into the shape of a wedge.  After several flights and 

shortening the length (I started with a piece 1.5" wide, 5" long,  3/8" 

thick on the fat edge) I ended up with a wedge that was 3" long and 1/4" 

thick on both rudder and aileron.  Then I rattle canned it, and Scotch 

Double Sided taped it to the rudder and aileron. Light and effective, easy 

to modify if needed and it never came off after 300 hours even in coastal 

marine air and five hours flying in rain. Worked for me and will use Balsa 

on the RV10 about two months from completion.

Chuck

----------------------------------------------

From: "Jesse Saint" <jesse(at)saintaviation.com>

Sent: Saturday, January 17, 2009 6:00 AM

To: <rv10-list(at)matronics.com>

Subject: Re: rudder trim

 	  Quote: 	

 The trims I've used are about 8 inches long by about 1.5 inches wide, 

 from my memory.  This is the aerotrim servo and tab (which is now in 

 limbo because Norm passed away).  This may allow more trim then I  expect 

 to use, but with a narrower tab you would have to turn it  further to trim 

 the plane.  I don't know if that would create more  drag or not.

 Jesse Saint

 Saint Aviation, Inc.

 jesse(at)saintaviation.com

 Cell: 352-427-0285

 Fax: 815-377-3694

 On Jan 17, 2009, at 1:21 AM, linn Walters wrote:

> 

> >

>

> I've seen mention of rudder trim made from hinge material.  I'm  going 

> that route and wonder how effective it is with just the hinge  or if 

> extra area was needed.

>

> So, for those that didn't cut the rudder and installed 'hinge trim',  how 

> well does it work, how big (I saw 1') did you make yours, and  did you 

> have to add a tab on the hinge.

> TIA

> Linn

>

>

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planesmith(at)hotmail.com
Guest

Posted: Sat Jan 17, 2009 9:04 am Post subject: rudder trim

HI Tim C



How C



Much does the hinge deflection at full travel and do you ever use full deflection in flight?



Vern Smith (#324 finishing; rudder trim) 



 	  Quote: 	
		   Date: Sat C 17 Jan 2009 09:50:31 -0600

 From: Tim(at)MyRV10.com

 To: rv10-list(at)matronics.com

 Subject: Re: rudder trim

 

 --> RV10-List message posted by: Tim Olson <Tim(at)myrv10.com>

 

 I think Vic's was 11' or 10'.  You don't need to go

 any larger than that C for sure.  And C you don't

 need to add any more area to the hinge.  That should

 be plenty.  You MAY be able to get by with 8" C but it

 would deflect more.  I'd say 10-11" works well C without

 requiring tons of deflection C and unless you build a

 pretty crooked plane C it should work fine for you.

 

 Tim Olson - RV-10 N104CD - Flying

 do not archive

 

 

 linn Walters wrote:

 > --> RV10-List message posted by: linn Walters <pitts_pilot(at)bellsouth.net>

 > 

 > I've seen mention of rudder trim made from hinge material.  I'm going 

 > that route and wonder how effective it is with just the hinge or if 

 > extra area was needed.

 > 

 > So C for those that didn't cut the rudder and installed 'hinge trim' C how 

 > well does it work C how big (I saw 1') did you make yours C and did you 

 > have to add a tab on the hinge.

 > TIA

&g= Archive Search & Download C 7-Day Browse C Chat C FAQ C
	


&g=======================

[quote] 

 

 

Windows Live™: Keep your life in sync.  See how it works.   	  Quote: 	
		  [b]

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Tim Olson

Joined: 25 Jan 2007
Posts: 2879

Posted: Sat Jan 17, 2009 9:35 am Post subject: rudder trim

I've never come anywhere near full deflection, usually it's

about 1/8" to 1/4" max off to the left.  It's nice seeing

it not making some large angle with the rudder...it doesn't

stand out so much that way.



Tim Olson - RV-10 N104CD - Flying

do not archive

Vernon Smith wrote:

 	  Quote: 	
		   HI Tim,

 

 How,

 

 Much does the hinge deflection at full travel and do you ever use full 

 deflection in flight?

 

 Vern Smith (#324 finishing; rudder trim)

 

  > Date: Sat, 17 Jan 2009 09:50:31 -0600

  > From: Tim(at)MyRV10.com

  > To: rv10-list(at)matronics.com

  > Subject: Re: rudder trim

  >

  > 

  >

  > I think Vic's was 11' or 10'. You don't need to go

  > any larger than that, for sure. And, you don't

  > need to add any more area to the hinge. That should

  > be plenty. You MAY be able to get by with 8", but it

  > would deflect more. I'd say 10-11" works well, without

  > requiring tons of deflection, and unless you build a

  > pretty crooked plane, it should work fine for you.

  >

  > Tim Olson - RV-10 N104CD - Flying

  > do not archive

  >

  >

  > linn Walters wrote:

  > > 

 <pitts_pilot(at)bellsouth.net>

  > >

  > > I've seen mention of rudder trim made from hinge material. I'm going

  > > that route and wonder how effective it is with just the hinge or if

  > > extra area was needed.

  > >

  > > So, for those that didn't cut the rudder and installed 'hinge 

 trim', how

  > > well does it work, how big (I saw 1') did you make yours, and did you

  > > have to add a tab on the hinge.

  > > TIA

 &g= Archive Search & Download, 7-Day Browse, Chat, FAQ,

 &g=======================

  >

  >

  >

 

 ------------------------------------------------------------------------

 Windows Live™: Keep your life in sync. See how it works. 

 <http://windowslive.com/howitworks?ocid=TXT_TAGLM_WL_t1_allup_howitworks_012009> 

 

 

 *

 

 

 *

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planesmith(at)hotmail.com
Guest

Posted: Sat Jan 17, 2009 6:03 pm Post subject: rudder trim

It's good to hear it doesn't take much trim to get the job done.

Thanks C



Vern

do not archive



 	  Quote: 	
		   Date: Sat C 17 Jan 2009 11:34:27 -0600

 From: Tim(at)MyRV10.com

 To: rv10-list(at)matronics.com

 Subject: Re: rudder trim

 

 --> RV10-List message posted by: Tim Olson <Tim(at)myrv10.com>

 

 I've never come anywhere near full deflection C usually it's

 about 1/8" to 1/4" max off to the left.  It's nice seeing

 it not making some large angle with the rudder...it doesn't

 stand out so much that way.

 

 Tim Olson - RV-10 N104CD - Flying

 do not archive


	


Windows Live™ Hotmail®: Chat. Store. Share. Do more with mail.  Check it out.  [quote][b]

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