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The green ‘ALT’ annunciation flashes for up to 10 seconds upon reaching 50 feet from the Selected Altitude; the autopilot transitions to Altitude Hold Mode and levels the aircraft.
Figure 7-40 FLC DescentCruise Altitude of 12,000 MSLSelected Altitude of 10,000 MSLALT ModeFLC ModeALT Mode123
404 Garmin G1000 Pilot’s Guide for the Cessna Citation Mustang 190-00494-02 Rev. B
Automatic utomatic utomatic Flight Control System ystem
SYSTEM
OVERVIEW
FLIGHT
AUDIO PANEL EICAS INSTRUMENTS
& CNS
FLIGHT
MANAGEMENT
HAZARD
ADDITIONAL AFCS AVOIDANCE
INDEX APPENDICES FEATURES
Vertical Path Tracking descent to VNV Target Altitude:
1) Select VNV flight control:
a) Press the VNV Key to arm Vertical Path Tracking Mode. The white annunciation ‘VPTH’ appears.
b) Using the ALT SEL Knob, set the Selected Altitude below the flight plan’s VNV Target Altitude of 10,000 feet.
If the Selected Altitude is not at least 75 ft below the VNV Target Altitude, the flight director commands descent to the Selected Altitude rather than the VNV Target Altitude once Vertical Path Tracking Mode becomes active (ALTS is armed rather than ALTV).
c) If Vertical Path Tracking Mode is armed more than 5 minutes prior to descent path capture, acknowledgment is required for the flight director to transition from Altitude Hold to Vertical Path Tracking Mode. To proceed with descent path capture if the white ‘VPTH’ annunciation begins flashing, do one of the following
• Press the VNV Key • Turn the ALT SEL Knob to adjust the Selected Altitude
If the descent is not confirmed by the time of interception, Vertical Path Tracking Mode remains armed and the descent is not captured.
2) When the top of descent (TOD) is reached, the flight director transitions to Vertical Path Tracking Mode and begins the descent to the VNV Target Altitude. Intention to capture the VNV Target Altitude is indicated by the white ‘ALTV’ annunciation.
3) As the aircraft nears the VNV Target Altitude, the flight director transitions to VNV Target Altitude Capture Mode, indicated by the green ‘ALTV’ annunciation flashing for up to 10 seconds.
The green ‘ALT’ annunciation flashes for up to 10 seconds upon reaching 50 feet from the VNV Target Altitude; the autopilot transitions to Altitude Hold Mode and levels the aircraft at the vertical waypoint.
Figure 7-41 VPTH DescentAlong-track Offset, 3 nm before OPSHN3 nmCruise Altitude of 12,000 MSLVNAV Target Altitude of 10,000 MSLALT ModeVPTH ModeSelected Altitude (set below VNAV Target Altitude)123TODBODALT Mode
190-00494-02 Rev. B Garmin G1000 Pilot’s Guide for the Cessna Citation Mustang 405
Automatic utomatic utomatic Flight Control System ystem
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS EICAS AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE AFCS ADDITIONAL
FEATURES APPENDICES INDEX
Non-path descent using Flight Level Change Mode:
1) Using Flight Level Change Mode, command a non-path descent to an intermediate altitude above the next VNV flight plan altitude:
a) Using the ALT SEL Knob, set the Selected Altitude below the current aircraft altitude to an altitude (in this case, 9,400 feet) at which to level off between VNV flight plan altitudes.
b) Press the FLC Key before the planned TOD during an altitude hold while VPTH is armed. The Airspeed Reference defaults to the current aircraft airspeed. Vertical Path Tracking and Selected Altitude Capture Mode are armed automatically.
2) Reduce power to allow descent in Flight Level Change Mode. The autopilot maintains the Airspeed Reference.
3) As the aircraft nears the Selected Altitude, the flight director transitions to Selected Altitude Capture Mode, indicated by the green ‘ALTS’ annunciation flashing for up to 10 seconds.
The green ‘ALT’ annunciation flashes for up to 10 seconds upon reaching 50 feet from the Selected Altitude; the autopilot transitions to Altitude Hold Mode and levels the aircraft. After leveling off reset Selected Altitude at or below 9,000 ft.
4) When the next TOD is reached, Vertical Path Tracking becomes active (may require acknowledgment to allow descent path capture).
5) As the aircraft nears the VNV Target Altitude, the flight director transitions to VNV Target Altitude Capture Mode, indicated by the green ‘ALTV’ annunciation flashing for up to 10 seconds.
The green ‘ALT’ annunciation flashes for up to 10 seconds upon reaching 50 feet from the VNV Target Altitude; the autopilot transitions to Altitude Hold Mode and levels the aircraft at the vertical waypoint.
406 Garmin G1000 Pilot’s Guide for the Cessna Citation Mustang 190-00494-02 Rev. B
Automatic utomatic utomatic Flight Control System ystem
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