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Flyinglying a Flight Plan/GPS Course Noteote: Changing the navigation source cancels Navigation Mode and causes the flight director to revert back to Roll Hold Mode (wings rolled level).
As the aircraft closes on Salina VOR, GPS is used to navigate the next leg, airway V244. The aircraft is currently tracking inbound on Airway V4.
Flying a GPS flight plan:
1) Transition from VOR to GPS Navigation Mode:
a) Press the CDI Softkey until GPS is the selected navigation source.
b) Press the NAV Key to activate GPS Navigation Mode. The autopilot guides the aircraft along the active flight plan leg.
2) Following the flight plan, the autopilot continues to steer the aircraft under GPS guidance. Note that in GPS Navigation Mode, course changes defined by the flight plan are automatically made without pilot action required.
Figure 7-39 Transition to GPS Flight Plan03691215182124273033VOR NAV ModeGPS NAV ModeV 24412V 4076o075o260o03691215182124273033SalinaVOR(SLN)HaysVOR(HYS)
190-00494-02 Rev. B Garmin G1000 Pilot’s Guide for the Cessna Citation Mustang 403
Automatic utomatic utomatic Flight Control System ystem
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS EICAS AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE AFCS ADDITIONAL
FEATURES APPENDICES INDEX
Descent
While flying the arrival procedure, the aircraft is cleared for descent in preparation for the approach to KCOS. Three methods are presented for descent:
• Flight Level Change descent – Flight Level Change Mode can be used to descend to the Selected Altitude at a constant airspeed. This descent method does not account for flight plan waypoint altitude constraints.
• Vertical Path Tracking descent – Vertical Path Tracking Mode is used to follow the vertical descent path defined in the GPS flight plan. Altitude constraints correspond to waypoints in the flight plan. Before VNV flight control can provide vertical profile guidance, a VNV flight plan must be entered and enabled.
• Non-path descent in a VNV scenario – A VNV flight plan is entered and enabled however, Pitch Hold, Vertical Speed, or Flight Level Change Mode can be used to descend to the VNV Target Altitude prior to reaching the planned TOD. Flight Level Change Mode is used in the example.
Flight Level Change descent:
1) Select Flight Level Change Mode:
a) Using the ALT SEL Knob, set the Selected Altitude to 10,000 feet.
b) Press the FLC Key to activate Flight Level Change Mode. The annunciation ‘FLC’ appears next to the Airspeed Reference, which defaults to the current aircraft airspeed. Selected Altitude Capture Mode is armed automatically.
c) If desired press the SPD Key to display the Airspeed Reference in Mach.
2) Use the NOSE UP/DN Wheel or push the CWS Button while hand-flying the aircraft to adjust the commanded airspeed while maintaining the same power, or reduce power to allow descent in Flight Level Change Mode while the autopilot maintains the current airspeed.
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.
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
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Cessna Citation Mustang G1000 Integrated Flight Dec(143)
