Aspen Avionics Evolution EFD1000 PFD - Course Pointer and Deviation Indicator (CDI)

CHAPTER 2, CONTROLS AND DISPLAY
EFD1000 PFD Pilot’s Guide
Page 2-30 A-01-184-00 REV B
EFD1000 PFD Pilot’s Guide
EFD1000 PFD Pilot’s Guide
Navigation Setting Information
Regardless of compass mode setting, the current magnetic heading is always shown at
the top center of the Navigation Display (Figure 2-2, No. 48 and Figure 2-37). The
current setting of the HDG Bug (Figure 2-2, No. 50) is always shown to the right of the
ship’s heading, even if the HDG Bug itself may not be visible in ARC mode. Similarly,
the current Course setting (CRS) (Figure 2-2, No. 49) is always shown to the left of the
ship’s heading, whether or not the Course Pointer itself is visible in ARC mode.
A Navigation Source Information Block (Figure 2-2, No. 63 and Figure 2-38) is
presented in the upper left corner of the HSI display area. The Source Information Block
indicates the navigation source coupled to the CDI and its associated mode (e.g. VOR,
ILS, LOC, etc). Information is provided related to the coupled source, including, when
available, waypoint or navaid identier or frequency, bearing and distance, and the
estimated time to the active waypoint.
Course Pointer and Deviation Indicator (CDI)
In the 360º compass mode, the Course Pointer and Deviation Indicator (CDI) resemble
those of a mechanical HSI, with an arrowhead pointing to the selected course, and a
movable center section indicating course deviation against a scale of two dots to either
side of the center. A TO/FROM indication is shown as a triangle above (TO) or below
(FROM) the end of the deviation bar.
Within the ARC mode, the pilot may select (via the Main Menu) between two dierent
formats of CDI presentation – ARC HSI mode and ARC CDI mode. The ARC HSI mode,
presents a full rotating Course Pointer with CDI, which resembles that used in the
HSI 360 Compass mode. The ARC CDI mode presents a short Course Pointer stub on
the compass arc, and a xed CDI at the bottom of the display, similar to the LDI and
Figure 2-37
Magnetic Heading
Figure 2-38
Navigation Source Information Block