Mike,
Which TruTrak autopilot do you have? I looked
through the Sorcerer documentation and could find nothing on an internal
magnetometer. I've also done a Sorcerer installation in a Legacy and don't
recall anything about a magnetometer. TruTrak does have internal
gyros. The Sorcerer operating manual states that if GPS data is lost the
track function switches to bank; i.e. it uses its internal gyros to maintain
bank. The autopilot function of the ADI Pilot also switches to a
gyro backup mode if GPS data is lost.
Tom Gourley
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