Garmin G1000 NXi Pilot's Manual page 372

AUTOMATIC FLIGHT CONTROL SYSTEM
To prevent immediate profile re-capture, the following must be satisfied:
• At least 10 seconds have passed since the non-path transition was initiated
• Vertical deviation from the profile has exceeded 250 feet, but is now less than 200 feet
Pressing the VNV Key twice re-arms Vertical Path Tracking for immediate profile re-capture.
vnv T a
argeT lTITUDe
VNV Target Altitude Capture Mode is only applicable to aircraft equipped with a VNV Key.
NOTE:
Armed VNV Target Altitude and Selected Altitude capture modes are mutually exclusive. However,
NOTE:
Selected Altitude Capture Mode is armed implicitly (not annunciated) whenever VNV Target Altitude Capture
Mode is armed.
VNV Target Altitude Capture is analogous to Selected Altitude Capture Mode and is armed automatically
after the VNV Key is pressed and the next VNV Target Altitude is to be intercepted before the Selected
Altitude. The annunciation 'ALTV' indicates that the VNV Target Altitude is to be captured. VNV Target
Altitudes are shown in the active flight plan or vertical direct-to, and can be entered manually or loaded
from a database (see the Flight Management Section for details). At the same time as "TOD within 1
minute" is annunciated in the Navigation Status Box, the active VNV Target Altitude is displayed above the
Vertical Speed Indicator (see Figure 7-15).
As the aircraft nears the VNV Target Altitude, the flight director automatically transitions to VNV Target
Altitude Capture Mode with Altitude Hold Mode armed. This automatic transition is indicated by the green
'ALTV' annunciation flashing for up to 10 seconds and the appearance of the white 'ALT' annunciation.
The VNV Target Altitude is shown as the Altitude Reference beside the 'ALTV' annunciation and remains
displayed above the Vertical Speed Indicator. The Required Vertical Speed Indication (RVSI) is removed
once VNV Target Altitude Capture Mode becomes active.
At 50 feet from the VNV Target Altitude, the flight director automatically transitions from VNV Target
Altitude Capture to Altitude Hold Mode and tracks the level leg. As Altitude Hold Mode becomes active,
the white 'ALT' annunciation moves to the active vertical mode field and flashes green for 10 seconds to
indicate the automatic transition. The flight director automatically arms Vertical Path Tracking, allowing
upcoming descent legs to be captured and subsequently tracked.
358
Figure 7-17 Flight Level Change VNV Non-Path Descent
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Garmin G1000 NXi Pilot's Guide for the Cessna Nav III
190-02177-00 Rev. A