Heading Bug - Aspen Avionics Evolution Backup Display EFD1000 Pilot's Manual

4.4.2. Heading Bug

The EBD offers a pilot-selectable Heading Bug. The Heading Bug symbol is positioned
on the compass scale according to the Selected Heading Field value (HDG) set by the
pilot (Figure 4-82).
When the Selected HDG Field value is outside the visible compass scale range in the
ARC Compass mode, only a portion of the Heading Bug is shown at the edge of the
compass arc, closest to the HDG value (Figure 4-83).
When selected for editing, the Heading Bug and the Selected HDG Field value are
shown in magenta. Additionally, a dashed magenta line extends from the Ownship
Symbol to the Heading Bug, corresponding to the HDG value. When the Heading Bug is
SYNCed, the HDG value is set to the current heading.
Set Heading Bug
1. Press the Top Knob.
The HDG label above the Top Knob and the Selected Heading Field are enabled for
editing, both rendered in magenta (Figure 4-84).
2. Rotate the Top Knob to change the value of the Selected Heading Field.
Once the HDG value is set, and after 10 seconds of inaction, the Selected HDG Field is
disabled, and both the Top Knob State and the Selected Heading Field are displayed in
cyan.
091-00027-001 REV A
091-00027-001 Rev A EBD Pilots Guide V&H .indb 25
Evolution Backup Display Pilot's Guide
Figure 4-82
Heading Bug and Selected
Heading Field
Figure 4-83
Selected Heading Bug Outside of
the ARC Compass Scale Range
Figure 4-84
Heading Selected to Edit
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8/27/14 8:51 AM