I have been flying with the TruTrack for a year now and find it just
what I want. I use it when getting close to shear lines marked by Q's
that don't have a firm base and step-up 1000 feet from one side to the
other, like we get all the time here in the Mendacino Mountains. It is
instant-on and it can be turned on while in a bank...............comes
right up to show your correct bank angle. It looks like a gyro, but
shows no pitch information. I have had it on for 30 minutes and it
always showed the correct attitude. Plenty good enough to execute a
180 in order to get out of an unexpected IFR situation, just maintain
your cruise speed which will keep the pitch under control and crank it
around using the TruTrack....................Please no hate-mail about
the FAR's, I use it just in case I'm fiddling with the computer one
day and suddenly find everything has turned gray!
JJ

My more serious concern with the ADI is how exactly the unit performs
in a glider - especially given it is *not* a normal artificial
horizon. It displays what TruTrack calls "vertical velocity enhanced
pitch". So what happens to the pitch indication when you encounter
significant change in vertical speed say in wave or even in a thermal.
Anybody have any actual experience using one of these? The pitch
indication behavior? How does the unit handle continuous high turn
rate thermalling?

Darryl