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Rudder trim de nuevo

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woxofswa

Joined: 12 Aug 2008
Posts: 349
Location: AZ

Posted: Sat May 01, 2010 11:00 am Post subject: Rudder trim de nuevo

I have always liked the idea of a mechanical and tabless rudder trim rather than a servo/tab.



Does anyone have any experience or feedback on the "skunkworks" spring bias rudder trim kit?  I have ordered it, but yet to receive it.



http://www.mlblueskunk.com/Rudder_Trim_System.html



Thanks in advance.

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Myron Nelson
Mesa, AZ
Flew May 10 2014

robin(at)PaintTheWeb.com
Guest

Posted: Sat May 01, 2010 11:53 am Post subject: Rudder trim de nuevo

For another data point I LOVE my servo driven rudder tab operated by my

thumb on the infinity grip. Use it all the time to keep the ball centered.

Robin



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Lew Gallagher

Joined: 04 Jan 2008
Posts: 402
Location: Greenville , SC

Posted: Sat May 01, 2010 2:31 pm Post subject: Re: Rudder trim de nuevo

Hey Myron,



We put this system in Wes's RV-10.  He's limited to 35 miles radius during fly-off, so not much chance to really test the trim at altitude and cruise speed yet, but he says he's played with it a little and it does what it's supposed to.  So far, he says the plane flies so balanced that he doesn't really need it yet.



I like it for the same reasons you do -- clean rudder, simple mechanics.  Also, it takes out the "slack cable" effect.  I REALLY would recommend that you install this early in your panel build if you know where it's going -- we added it later and it involves upside down mumbling, but it can be done.  We ended up putting it to the right of center just because we didn't plan for it and that's where it fit.



Pay attention to the direction you wrap the cables, and which one goes to what pedal so that when you roll the knob to the right, you get right trim, etc.



You might want to ask about the springs for the -10.  I think they probably sent the stronger ones if you ordered it for the -10, but there is more friction in the cables than you'd think;  the trim knob will not move the rudder playing with it on the ground, but apparently holds it where you put it in flight.  They do mention stronger springs for the -10.



Later, - Lew

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non-pilot
crazy about building
NOW OFICIALLY BUILDER #40549
Fly off completed !

Lew Gallagher

Joined: 04 Jan 2008
Posts: 402
Location: Greenville , SC

Posted: Sat May 01, 2010 2:37 pm Post subject: Re: Rudder trim de nuevo

Oh, yeah.  You might want to brace the bottom of the lower panel where you mount it -- the tension tends to flex it.



Later, - Lew

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Fly off completed !

woxofswa

Joined: 12 Aug 2008
Posts: 349
Location: AZ

Posted: Sun May 02, 2010 11:02 am Post subject: Re: Rudder trim de nuevo

Thanks for the info fellers.



I will install this thing and report back.  It appears simple and cheap.  



Robin,



I can appreciate the ease of the koolie hat.  I am trying something different with my stick grips (cutting/modifying the uprights off of a Boeing 737 yoke) and that leaves me PTT, Pitch trim, and A/P disconnect, so no koolie hat for me.



BTW, My wife wants to improve the menu for the RV-10 nest at Copperstate, but I told her we still have to have the special krispie treats for you.

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Myron Nelson
Mesa, AZ
Flew May 10 2014

Kelly McMullen

Joined: 16 Apr 2008
Posts: 1188
Location: Sun Lakes AZ

Posted: Sun May 02, 2010 12:46 pm Post subject: Rudder trim de nuevo

I'm a big fan of those too. 



On Sun, May 2, 2010 at 12:02 PM, woxofswa <woxof(at)aol.com> wrote:



 	  Quote: 	
		   BTW, My wife wants to improve the menu for the RV-10 nest at Copperstate, but I told her we still have to have the special krispie treats for you.



 --------

 Myron Nelson

 Mesa, AZ

 Emp completed, QB wings completed, legacy build fuse in progress

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Kelly McMullen
A&P/IA, EAA Tech Counselor
KCHD

robin(at)PaintTheWeb.com
Guest

Posted: Sun May 02, 2010 3:18 pm Post subject: Rudder trim de nuevo

Not sure how you could improve on last year. Yum yum.



Robin



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