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I have a question regarding a Ray Allen Trim System for the

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rnewman(at)tcwtech.com
Guest

Posted: Sun Jan 26, 2014 3:53 pm Post subject: I have a question regarding a Ray Allen Trim System for the

Tal.  



This is the trim servo,  not an autopilot servo.   Now if you go with an autopilot that supports auto-trimming, the autopilot system will connect into this servo.    The trim servo is compatible with all major brands of autopilots



Bob Newman

N541RV



Sent from my iPhone



On Jan 26, 2014, at 6:38 PM, Tal Holloway <whodja(at)gmail.com> wrote:



 	  Quote: 	
		   

 

 I purchased a RV-10 tail kit and part of the pkg was a T3-12A-TS system. I'm just starting the kit and I'm not sure which AP I will eventually use. What AP is this system compatible with? Does it work with Garmin, AFS or Dynon? It's never been installed. Should I sell it and buy something different closer to avionics?

 

 Thanks

 

 Tal Holloway

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rnewman(at)tcwtech.com
Guest

Posted: Sun Jan 26, 2014 6:06 pm Post subject: I have a question regarding a Ray Allen Trim System for the

Bob mentioned our Safety-trim product,  all the details are on our web site:   www.tcwtech.com





On Jan 26, 2014, at 8:40 PM, "Bob Turner" <bobturner(at)alum.rpi.edu> wrote:



 	  Quote: 	
		   

 

 Hi Tal!

 

 As the others have already posted, all of the available RV autopilots use a servo which drives the elevator directly, not the trim. I suspect the trim doesn't run fast enough in turbulence.

 

 Different autopilots deal with trim differently. If you change airspeed, some units will simply indicate that you need to re-trim, manually. Others will drive the Ray Allen trim servos automatically (I know the Trio will do that, if ordered with "auto trim". I think the same is true for TruTrak).

 

 This is a ways off, but you will find the trim speed about right at takeoff and landing speeds, but quite fast at cruise speeds. There is a box available ("safe-t-trim"??) which will automatically slow the trim speed as airspeed goes up; and at the same time will cut off trim if it runs more than 3 seconds, as a safety precaution against a runaway trim. An option to consider, when you get to the panel building.

 

 Bob

 

 --------

 Bob Turner

 RV-10 QB

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=417637#417637

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rleffler

Joined: 05 Nov 2006
Posts: 680

Posted: Sun Jan 26, 2014 7:36 pm Post subject: I have a question regarding a Ray Allen Trim System for the

The same is true for Trutrak with the auto trim module.



I also recommend a module that controls trim spend like Safety-trim or the built in trim control in the VPX.



Sent from my iPad



 	  Quote: 	
		   On Jan 26, 2014, at 8:40 PM, "Bob Turner" <bobturner(at)alum.rpi.edu> wrote:

 

 

 

 Hi Tal!

 

 As the others have already posted, all of the available RV autopilots use a servo which drives the elevator directly, not the trim. I suspect the trim doesn't run fast enough in turbulence.

 

 Different autopilots deal with trim differently. If you change airspeed, some units will simply indicate that you need to re-trim, manually. Others will drive the Ray Allen trim servos automatically (I know the Trio will do that, if ordered with "auto trim". I think the same is true for TruTrak).

 

 This is a ways off, but you will find the trim speed about right at takeoff and landing speeds, but quite fast at cruise speeds. There is a box available ("safe-t-trim"??) which will automatically slow the trim speed as airspeed goes up; and at the same time will cut off trim if it runs more than 3 seconds, as a safety precaution against a runaway trim. An option to consider, when you get to the panel building.

 

 Bob

 

 --------

 Bob Turner

 RV-10 QB

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=417637#417637

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

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