Garmin G1000 Mooney M20TN - Manual (Page 68)

Garmin G1000 Pilot’s Guide for the Mooney M20M/M20R/M20TN 190-00647-02 Rev. A 54
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: During a heading change of greater than 105˚ with respect to the course, 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 2-17 Course Deviation Indicator
Crosstrack
Error
CDI
Navigation
Source
CDI
Scale
Flight
Phase
Arc HSI
Navigation
Source
Scale
CDI
360º HSI
Flight
Phase
The CDI can display two sources of navigation, GPS or VOR/LOC. The color indicates the current navigation
source, magenta for GPS and green for VOR and LOC. The full scale limits for the CDI are defined by a GPS-
derived distance when navigating GPS. When navigating using a VOR or localizer (LOC), the CDI uses the
same angular deviation as a mechanical CDI. If the CDI exceeds the maximum deviation on the scale (two dots)
while navigating with GPS, the crosstrack error (XTK) is displayed below the white aircraft symbol.
Figure 2-18 Navigation Sources