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Date: Sat, 06 Mar 2010 13:09:51 -0500
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Subject: Re: [LML] Autopilot Position on the Panel; Use A/P for DG Alternative
From: paul miller <paul@tbm700.com>
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References: <list-4153632@logan.com>

Bravo on the TruTrak Jeff.  Not only does it have internal DG but also =
an internal altimeter as well (mine is an older model DFC-250AS) which =
means that not only will it fly a heading and altitude if my glass fails =
but it will continue to roll steer a GPS course too.  In the past my =
Avidyne PFD has gone all "red X" in flight but the TruTrak continued on =
providing stable references and flying the airplane so it is a =
remarkably capable device.   I have a Honeywell KFC-325 series autopilot =
in the TBM and it cannot do what the TruTrak can.   While both can =
capture altitude capture only the TruTrak will prevent a stall in that =
mode. If speed drops below a set value it will hold minimum speed =
instead of altitude.  I really like this device.

Paul M N357V Legacy

On 2010-03-05, at 1:57 PM, Jeffrey Liegner, MD wrote:

> Here's a thought "if I had to do it over."
>=20
> I would have placed the autopilot closer to the center of the console, =
near my power quadrant hand, not near the pilot's side stick.
>=20
> I would have known (in advance) that the TruTrak autopilot has an =
internal magnetometer to provide/display magnetic heading in case the =
GPS signal was lost (in my glass panel), and thus could have planned to =
use this source instead of a Directional Gyro (DG) mounted in the panel =
or PAI-700 compass card on top of the visor.  This would free up some =
panel real estate.
>=20
> Just sharing.
>=20
> Jeff L
> LIVP
>=20
>=20
> PS  Of course, I have a AI, AS and ALT as my back up instruments, but =
a DG would not be needed.
>=20
> --
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