Aspen Avionics Evolution EFD 1000 C3 Pro PFD - 360° Compass Mode; ARC Compass Mode; Compass

CHAPTER 4 REFERENCE GUIDE
Page 4-28
091-00019-001 REV B
EFD1000 C3 Pro PFD Pilot’s Guide
Figure 4-40
360° Compass Mode
Figure 4-41
ARC HSI Compass Mode
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°.
4.4.1. Compass
The PFD oers three Compass Modes: 360°, ARC HSI, and ARC CDI. The default Compass
Mode is 360. The aircraft’s heading is always expressed degrees magnetic. The magnetic
headings inside of the compass scale omit 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°).
4.4.1.1. 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 4-40).
4.4.1.2. 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 4-41).