AP has YD when in NAV mode?
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The autopilot seems to have a yaw damper function when in NAV mode which I don' think the KAP 140 has.
In the following video you can see that even with the rudder trim set to almost halfway to full right right deflection the airplane is fully coordinated in NAV mode. However, as soon as I go in to roll mode the airplane is no longer coordinated and the rudder deflection immediately goes to 0. You can see that as soon as I go back in to NAV mode the rudder deflection starts increasing by it self with me not touching the pedals.
I am not touching the rudder pedals or yoke at any point in the video.
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Thank you for the video. That's always so helpful. Indeed, it appears that the native autopilot will use the rudder regardless of the yaw damper settings. I should be able to just zero out the PID constants to eliminate it, but I will have to try it and make sure there are no adverse effects. Thanks for letting me know!
