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190-00592-06 Rev. A
Garmin G1000 Pilot’s Guide for Diamond DA40/40F
371
AUTOMATIC FLIGHT CONTROL SYSTEM
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICES INDEX
Prior to descent path interception, the Selected Altitude must be set below the current aircraft altitude
by at least 75 feet. For the flight director to transition from Altitude Hold to Vertical Path Tracking Mode,
acknowledgment is required within 5 minutes of descent path interception by:
•PressingtheVNV Key
•AdjustingtheSelectedAltitude
If acknowledgment is not received within 1 minute of descent path interception, the white ‘VPTH’
annunciation starts to flash. Flashing continues until acknowledged or the descent path is intercepted. If
the descent is not confirmed by the time of interception, Vertical Path Tracking Mode remains armed and the
descent is not captured.
In conjunction with the “TOD [top of descent] within 1 minute” annunciation in the Navigation Status Box
and the “Vertical track” voice message, VNV indications (VNV Target Altitude, vertical deviation, and vertical
speed required) appear on the PFD in magenta (Figure 7-11).
Figure 7-11 Vertical Path Capture
VNV Target
Altitude
Selected
Altitude Below
VNV Target
Vertical
Deviation
Indicator
Required
Vertical
Speed Bug
Vertical Path Tracking
Armed, (Flashing Indicates
Acknowledgment Required)
Altitude Hold
Mode Active
Terminal
Phase
of Flight
GPS is
Selected
Navigation
Source