Jeff,

I had a full size TruTrak ADI on order for my panel but returned it for
a Castleberry battery backed up AI.

Here is my reason:

The ADI acts more like a VSI than an Attitude Indicator.  In a situation
where you are nose up, slow and descending, the TruTrak will show you as
being "nose down" (if you interpret the ADI the same way you would interpret
an AI).  This could lead you to pull back and stall

In a situation in which I have lost my Chelton, I didn't want to be confused
about my attitude if I got slow and stall.

Just my 2 cents

D. Brunner

-----Original Message-----
>From: jeff@eurocars4less.com
>Sent: Oct 5, 2007 8:52 PM
>To: lml@lancaironline.net
>Subject: [LML] Re: Electric Gyro Compass
>
>Check out tru trak's 2 1/4 ADI with electric heading indicator. Great unit,
>battery back up, comes with or without it's own GPS. The best part is the
>Price.
>
>Jeff Rienzi