CHAPTER 4 REFERENCE GUIDE
EFD1000 PRO MAX PFD Pilot’s Guide
Page 4-27
091-00005-002 ()
All Magnetic Headings are displayed in degrees. The value range is from 001° - 360°,
always displayed in three digits, and use leading zeros when applicable. The Magnetic
North is expressed as 360°.
The PFD offers three Compass Modes: 360°, ARC HSI, and ARC CDI. The default Compass
Mode is 360. The aircraft’s heading is always expressed degrees magnetic.
4.5.1 360° Compass Mode
The 360° Compass Mode displays a full 360° compass rose with all other components of
the Direction Indicator. The 360° compass rose rotation centers on the aircraft ownship
symbol so that the numerical direction indication corresponds to the current aircraft
heading (Figure 4-39).
4.5.2 ARC Compass Mode
The two ARC Compass Modes have an abbreviated 100° ARC compass scale. All
other elements of the Direction Indicator are retained. The ARC Compass Mode’s
scale rotation centers on the aircraft ownship symbol so that the numerical direction
indication corresponds to the current aircraft heading. The default ARC Compass Mode
is ARC HSI.
The ARC HSI Compass Mode presents a rotating CDI, similar to that used in the 360°
Compass Mode (Figure 4-40).
The ARC CDI Compass Mode uses a fixed CDI, resembling a contemporary GPS
navigation deviation display. The ARC CDI Compass Mode is intended to maximize the
lower display area for map and flight plan data (Figure 4-41).
Figure 4-39
360° Compass Mode
Figure 4-40
ARC HSI Compass Mode
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