Garmin G300 Pilot’s Guide
190-00921-00 Rev. E
63
Flight Instruments
System
Overview
Flight
Instruments
EIS
COM
Interface
GPS
Navigation
Flight
Planning
Hazar
d
Avoidance
Additional
Featur
es
Integr
ated
Autopilot
Annun/Alerts
Appendix
Index
COURSE DEVIATION INDICATOR (CDI)
The HSI contains a Course Deviation Indicator (CDI), with a Course Pointer,
To/From Indicator, and a sliding deviation bar and scale. The course pointer is
a single line arrow which points in the direction of the set course. The To/From
arrow rotates with the course pointer and is displayed when the active NAVAID
is received.
The Course Deviation Indicator (CDI) moves left or right from the course pointer
along a lateral deviation scale to display aircraft position relative to the course. If
the course deviation data is not valid, the CDI is not displayed.
The full scale limits for the CDI are defined by a GPS-derived distance. If the CDI
exceeds the maximum deviation on the scale (two dots), the crosstrack error (XTK)
is displayed below the white aircraft symbol.
Another Lateral Deviation Scale and combination Course Deviation and To-From
Indicator is located below the slip/skid indicator.
Lateral Deviation Scale
Course Deviation &
To/From Indicator
Lateral
Deviation
Scale
A
utomAtic
cDi S
cAle
S
election
(D
efAult
)
Three factors determine the default distance from the center of the CDI to full
left or right limits:
• CDI scale = 1.25 nm - within 30 nm of any airport in the active route.
• CDI scale = 0.25 nm - on an approach leg or within 2 nm of the FAF or
MAP.
• CDI scale = 5.0 nm - if the previous two conditions do not exist.
m
AnuAl
cDi S
cAle
S
election
The Automatic CDI Scale Selection will resume once the default determining
factor for the current phase of flight matches the user-selected CDI scale.
Summary of Contents for G300 for Cessna SkyCatcher
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