Mailing List lml@lancaironline.net Message #57213
From: paul miller <paul@tbm700.com>
Sender: <marv@lancaironline.net>
Subject: Re: [LML] Re: elevator trim speed (TruTrak)
Date: Tue, 18 Jan 2011 11:45:29 -0500
To: <lml@lancaironline.net>
Doug and Colyn:  Yes, the trim servo is the Ray Allen unit which is only sold as 12v so it appears to be driven at 24v by my aircraft through the Trutrak box.   The normal Ray Allen travel time is about 15 seconds from their website and I'm around 5-8 seconds.   It would appear that Trutrak will mod the autotrim box to limit the output voltage to 12v but I've got a note into them to confirm this before I send it back.  If that's correct Doug then the trim speed should be more manageable.  This is also a safety issue because a 5 second full trim move is not easy to live with in a runaway situation. Will advise shortly.

Paul
Spruce Creek

On 2011-01-17, at 7:57 AM, Douglas Brunner wrote:

> Paul,
>
> This is a problem experienced by other Legacy pilots.
>
> I am also a 28V plane, but don't think the problem is due to the voltage.
> My trim speed is good for takeoff and landing, but way too fast for cruise.
> I have adapted to it by learning to "blip" the trim in flight.

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