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I ran an early Dynon D10 EFIS for many years. It had an internal magnetometer and of course, Gyros. No GPS attached to it.
The heading never precessed a bit. I wonder if the uAvionix is even using the internal magnetometer to update the heading at all.
( Almost done with a Dynon Skyview install into a Velocity now).
YouTube Videos: https://www.youtube.com/user/FlyMeAirplane/videos
Q200 Website: http://goo.gl/V8IrJF
On Fri, Dec 2, 2022 at 12:26 PM hgflier via groups.io <firstname.lastname@example.org> wrote: