Garmin G1000 King Air C90GT - Manual (Page 82)

Garmin G1000 Pilot’s Guide for the Hawker Beechcraft C90A/GT 190-00663-01 Rev. A 68
FLIGHT INSTRUMENTS
SY
STEM
O
VER
VIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO P
ANEL
& CNS
FLIGHT
MANA
GEMENT
HAZARD
AV
OID
ANCE
AFCS
ADDITIONAL FEA
TURES
APPENDICES
INDEX
COURSE DEVIATION INDICATOR (CDI)
NOTE: If a heading change of greater than 105˚ with respect to the course is made, the CDI on the Arc HSI
switches to the opposite side of the deviation scale and displays reverse sensing.
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.
Figure 2-25 Course Deviation Indicator
360º HSI
Scale
Crosstrack
Error
Flight
Phase
CDI
Navigation
Source
Arc HSI
CDI
Navigation
Source
CDI Scale
Flight
Phase
Crosstrack
Error
The CDI can display two sources of navigation: GPS or NAV (VOR, localizer). Color indicates the current
navigation source: magenta (for GPS) or green (for VOR and LOC); the Selected Course readout also follows
these color indications. When coupled to GPS, the full scale limits for the CDI are defined by a GPS-derived
distance. When coupled to a VOR or localizer (LOC), the CDI has the same angular limits as a mechanical CDI.
If the CDI exceeds the maximum deviation on the scale (two dots) while coupled to GPS, the crosstrack error
(XTK) is displayed below the white aircraft symbol.
Figure 2-26 Navigation Sources
Navigation
Source Selected
on Both PFDs