CHAPTER 4 REFERENCE GUIDE
EFD1000 PRO MAX PFD Pilot’s Guide
Page 4-26
091-00005-002 ()
4.5 Navigation Display
The Horizontal Situation Indicator (HSI) on the Navigation Display of the PFD, combines
a Direction Indicator with a Course Deviation Indicator (CDI) (Figure 4-38).
The Direction Indicator comprises a compass, numerical direction indication, heading
bug, Ground Track Marker (when GPS ground track information is available), rate of turn
indicator, and aircraft ownship symbol. The CDI is comprises a selected course pointer,
Deviation Scale and indicator, TO/FROM indicators, and selected navigation source label
and information block.
CDI Source Info Block Aircraft Ownship Symbol
Magnetic Heading Heading Bug
Rate of Turn Indicator Selected CDI Navigation Source
Selected Heading Field Course Deviation Scale
Ground Track Marker Compass Scale
Course Pointer Course Deviation Indicator
TO/FROM Indicator Altitude Intercept Arc
Figure 4-38
Horizontal Situation Indicator
NOTE
The size, shape and location of the Course Pointer,
Deviation Scale, and Deviation Indicator depend on
the Compass Mode selected.
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