Section 3 Display Symbology
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IDU-450 EFIS Software Version 8.0H (Rotorcraft)
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Ed Nov 2018
3.3.17. Turn Indication
Rate of turn is available as an option in the PFD
declutter menu to show a worm in the direction
of turn with full-scale deflection indicating a
standard rate of turn and half-standard rate
indicated at the mid-scale marking.
Figure 3-46: Turn Indicator
3.3.18. Timer Indication
When selected, a countdown or count-up timer is
displayed above the FPM or large aircraft symbol
reference marks.
Figure 3-47: Timer
3.3.19. Marker Beacon Symbology
Marker beacons data acquired from the navigation receiver are displayed
on the PFD and disabled when the selected NAV source is FMS. Valid
marker beacon signals cause circular indicators with appropriate coloring
and markings to display in the lower central portion of the PFD.
Synthetic
Vision
Basic Mode
Figure 3-48: Marker Beacons
3.3.20. Flight Director Symbology
Flight director (FD) symbology is controlled on the IDU or integrated
autopilot/flight director equipment. When selected, FD symbology and valid
steering commands are received from the FD with one of the following
symbols shown in the normal mode. The PFD has a waterline symbol fixed
in the center of the display. Rotation of the background, pitch scale, and
background oriented display elements occur relative to the location of the
waterline symbol or large aircraft reference marks.