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Compass Questions ?



 
 
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Old July 15th 15, 09:56 PM posted to rec.aviation.piloting
Skywise
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Default Compass Questions ?

Dallas wrote in
-
september.org:

Bob wrote:

Regarding the compass heading that shows in the glass displays:



The heading information from the PFD comes from a directional gyro. The
directional gyro's drift is constantly corrected (slaved) by a magnetic
compass located in the tailcone on the airplane. The output of this compass
is electrically "enhanced" and amplified through a "flux gate".

Bottom line: A very accurate, stable, compass reading that never needs
adjustment.


And to expand on that a bit...

https://en.wikipedia.org/wiki/Attitu...ference_system

Brian
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