EFD1000 PFD Pilot’s Guide
CHAPTER 4, REFERENCE GUIDE
EFD1000 PFD Pilot’s Guide
EFD1000 PFD Pilot’s Guide Page 4-19A-01-184-00 REV B
All instrument values on the HSI are displayed in degrees. The value range is from
001° - 360°, always displayed in three digits, and utilizing leading zeros when applicable.
Magnetic North is numerically represented as 360°.
4.3.1. Compass
The EFD1000 PFD oers three compass modes: 360°, ARC HSI, and ARC CDI. The default
compass mode is 360°. The aircraft’s heading is always expressed as magnetic heading.
The magnetic headings inside of the compass scale drop the last zero for brevity (i.e.,
30°, 60°, 120°, 150°, 210°, 240°, 300°, and 330° are labeled 3, 6, 12, 15, 21, 24, 30, and 33,
respectively). The four cardinal compass headings are shown as letters (i.e., “N” for 360°,
“E” for 090°, “S” for 180°, and “W” for 270°).
4.3.1.1. 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 4-33).
4.3.1.2. ARC Compass Mode
The two ARC Compass modes show an abbreviated, 100° arc compass scale. All other
elements of the Direction Indicator are presented. The ARC compass scale’s 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 4-34).
Figure 4-33
360° Compass Mode
Figure 4-34
ARC HSI Compass Mode
Figure 4-35
ARC CDI Compass Mode
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