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R9 Projected Track Line
When the aircraft's airspeed is above 5 knots, the projected track line is derived from GPS Track information. When the aircraft's airspeed drops below 5 knots, the projected track is based on true magnetic HDG info, without wind info for slide/slip calculations.
IFD540/440 Map Orientation - North Up vs Track Up vs HDG Up
The snippet below is taken from the pilot guide, with some added explanation at the bottom. "Pressing the right knob cycles through the various map views. The map view selected is indicated at the top of the map next to the heading box. No indication means Heading Up. All other options are labeled next to that h…
