Originally Posted by
SenecaII
I'm not sure how to read your statement considering, because I'd hate to think they had ZERO backup data in a single engine failure. Considering how it turned out in VMC imagine had it been IMC? Avanti is Part 23 cert. I assume? Any Redundancy?
An operating generator and associated energized conductors produce magnetic fields. So, if a generator stops, those fields disappear and the magnetic environment is different from the one present when the compass was swung. At that point, the compass card will not have valid corrections.
Follow?