Garmin G1000 NXi Pilot’s Guide for the Cessna NAV III
190-02177-02 Rev. A
387
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
Upon reaching the glidepath, the flight director transitions to Glidepath Mode and begins to capture and
track the glidepath.
Figure 7-20 Glidepath Mode Armed
Once the following conditions have been met, the glidepath can be captured:
»
A GPS approach with vertical guidance (LPV, LNAV/VNAV, LNAV+V) is loaded into the active flight plan.
»
The flight director has captured the lateral course.
»
The active waypoint is at or after the final approach fix (FAF).
»
Vertical deviation is valid.
»
The CDI is at less than full-scale deviation.
»
Automatic sequencing of waypoints has not been suspended (no ‘SUSP’ annunciation on the HSI).
NOTE:
Pressing the
CWS
Button while Glidepath Mode is active does not cancel the mode. The autopilot
guides the aircraft back to the glidepath upon release of the
CWS
Button.
Figure 7-21 Glidepath Mode
Glidepath
Mode Active
GPS Approach
Mode Active
Glidepath
Indicator
GPS is Selected
Navigation
Source
LPV Approach
Active
GLIDESLOPE MODE (GS)
NOTE:
The Autopilot must first capture the localizer before the glideslope can be captured. If the localizer
is not captured first, the glideslope, even if armed and intercepted, will not be captured by the Autopilot.
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.