Garmin G1000 King Air C90GT - Manual (Page 434)

Garmin G1000 Pilot’s Guide for the Beechcraft C90A/GT 190-00663-01 Rev. A 420
AUTOMATIC FLIGHT CONTROL SYSTEM
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
GLIDESLOPE MODE (GS)
Glideslope Mode is available for LOC/ILS approaches to capture and track the glideslope. When Glideslope
Mode is armed (annunciated as ‘GS’ in white), LOC Approach Mode is armed as the lateral flight director
mode.
Selecting Glideslope Mode:
1) Ensure a valid localizer frequency is tuned.
2) Ensure that LOC is the selected navigation source (use the CDI Softkey to cycle through navigation sources if
necessary).
3) Press the APR Key.
Or :
1) Ensure that GPS is the selected navigation source (use the CDI Softkey to cycle through navigation sources if
necessary).
2) Ensure a LOC/ILS approach is loaded into the active flight plan.
3) Ensure the corresponding LOC frequency is tuned.
4) Press the APR Key.
Figure 7-20 Glideslope Mode Armed
Once LOC is the navigation source, the localizer and glideslope can be captured. Upon reaching the glideslope,
the flight director transitions to Glideslope Mode and begins to capture and track the glideslope.
NOTE: Pressing the CWS Button while Glideslope Mode is active does not cancel the mode. The autopilot
guides the aircraft back to the glideslope upon release of the CWS Button.
Figure 7-21 Glideslope Mode
Command Bars Indicate Descent
on Localizer/Glideslope Path NAV2 (localizer) is Selected
Navigation Source
Glideslope
Indicator
Glideslope
Mode Active
Approach
Mode Active
Active ILS
Frequency Tuned