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Section 3 Display Symbology
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IDU-450 EFIS Software Version 8.0H (Rotorcraft)
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st
Ed Nov 2018
A VDI appears, as in Figure 3-90, when the VDI source is valid to display
vertical deviation information for the currently selected navigation source.
When the selected vertical source is FMS, the VDI displayed on the HSI
has the same behavior as the VDI displayed on the PFD with the exception
of the VDI source displayed on the top of the VDI to avoid clutter with
waypoint information below:
1) VNV1-B: Default FMS barometric VNAV mode
2) VNV2-B: Default FMS barometric VNAV mode
3) GS1: Glideslope #1
4) GS2: Glideslope #2
3.5.1. Conventional HSI/PTR Format
When selected, the ND displays conventional HSI symbology, including a
selected course needle, a lateral deviation indicator, and a TO-FROM
indicator.
Magenta (if FMS is the selected navigation source);
1) Cyan (if VLOC1 is the selected navigation source);
2) Green (if VLOC2 is the selected navigation source); or
3) Yellow when HSI is slaved to GPS/SBAS and there is a GPS LON
condition.
Normal Magenta Pointer
GPS LON Condition
Amber (Yellow) Pointer
Figure 3-91: HSI Pointer Color
As seen in Figure 3-92, a green diamond-shaped track pointer appears on
the compass rose and aligns with the aircraft’s track across the earth at