And in the B200, you also need to disconnect the Yaw Damp, or you end up trimming against it. The result? Well, part of the pre-ldg checks is Yaw Damp Disengaged.
If you're too busy to check trim manually at that stage, you're gunna need huge amounts of rudder when you close the throttles! Yeeehaaa!
So... why don't pilots disconnect the YD, as well as the a/p? Beats the stuffing out of me! Especially if the pilot hasn't thought to get the trim right before sticking the YD and a/p on. The only thing I can think is that some pilots might be a bit overawed by a manual that says things like ... yaw damp is required ... yada yada yada.
Yes, it really IS required. But that don't mean it has to be engaged every GD moment! Now, I just KNOW there's gunna be other aircraft types out there, fitted with YD...
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Once a king, always a king.
But once a nite's barely adequate!