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When Vertical Speed Mode is activated by pressing the VS Key, ‘VS’ is annunciated in green in the AFCS Status Box along with the Vertical Speed Reference. The Vertical Speed Reference is also displayed above the Vertical Speed Indicator. A Vertical Speed Reference Bug corresponding to the Vertical Speed Reference is shown on the indicator.
Changing the Verticalertical Speed Reference
The Vertical Speed Reference (shown both in the AFCS Status Box and above the Vertical Speed Indicator) may be changed by:
• Using the NOSE UP/DN Wheel
• Pressing the CWS Button, hand-flying the aircraft to attain a new Vertical Speed Reference, then releasing the CWS Button NOTE: If the Selected Altitude is reached during CWS maneuvering, the Altitude Reference is not changed. To adjust the altitude Reference in this case, the CWS Button must be pressed again after the Selected altitude is reached.
Figure 7-10 Vertical Speed Hold ModeSelected Altitude Capture Mode ArmedVertical Speed Mode ActiveVertical Speed ReferenceCommand Bars Indicate Climb toAttain Vertical Speed ReferenceVerticalSpeed ReferenceBugVerticalSpeed ReferenceSelectedAltitude
190-00494-02 Rev. B Garmin G1000 Pilot’s Guide for the Cessna Citation Mustang 375
Automatic utomatic utomatic Flight Control System ystem
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS EICAS AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE AFCS ADDITIONAL
FEATURES APPENDICES INDEX
Flight Level Change Mode (FLC) NOTE: The Selected Altitude should be set before selecting Flight Level Change Mode.
Flight Level Change Mode is selected by pressing the FLC Key. This mode acquires and maintains the Airspeed Reference (in IAS or Mach) while climbing or descending to the Selected Altitude (shown above the Altimeter). When Flight Level Change Mode is active, the flight director continuously monitors Selected Altitude, airspeed, Mach, and altitude.
The Airspeed Reference is set to the current airspeed upon mode activation. Flight Level Change Mode is indicated by a green ‘FLC’ annunciation beside the Airspeed Reference in the AFCS Status Box. The Airspeed Reference is also displayed directly above the Airspeed Indicator, along with a bug corresponding to the Airspeed Reference along the tape.
Engine power must be adjusted to allow the autopilot to fly the aircraft at a pitch attitude corresponding to the desired flight profile (climb or descent) while maintaining the Airspeed Reference. The flight director maintains the current altitude until either engine power or the Airspeed Reference are adjusted and does not allow the aircraft to climb or descend away from the Selected Altitude.
Figure 7-11 Flight Level Change Mode (IAS)Selected Altitude Capture Mode ArmedFlight Level Change Mode ActiveAirspeed ReferenceCommand Bars Indicate Climbto Attain Selected AltitudeAirspeed Reference BugAirspeed ReferenceSelected Altitude
376 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
Changing the Airspeed Reference
The Airspeed Reference (shown in both the AFCS Status Box and above the Airspeed Indicator) may be adjusted by:
• Using the NOSE UP/DN Wheel
• Pressing the CWS Button, hand-flying the aircraft to attain a new Airspeed Reference, then releasing the CWS Button NOTE: If the Selected Altitude is reached during CWS maneuvering, the Altitude Reference is not changed. To adjust the altitude Reference in this case, the CWS Button must be pressed again after the Selected altitude is reached.
During climb, the Airspeed Reference units automatically change from IAS to Mach when either the altitude or the airspeed listed in Table 7-3 are attained. For descent, the units switch back at the specified altitude or airspeed. The system determines aircraft climb or descent by the relationship between the current and Selected altitudes.
Airspeed Reference Units
Unit Type Changes At:
Default Units
Change To:
Altitude
Airspeed
Climb
IAS
Mach
> 31,500 ft
> M 0.48
Descent
Mach
IAS
< 27,000 ft
< 249 kt
Table 7-3 FLC Mode Unit Changes
190-00494-02 Rev. B Garmin G1000 Pilot’s Guide for the Cessna Citation Mustang 377
Automatic utomatic utomatic Flight Control System ystem
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS EICAS AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE AFCS ADDITIONAL
FEATURES APPENDICES INDEX
Airspeed Reference units can be manually toggled between IAS and Mach units using the SPD Key. When the FLC Airspeed Reference is displayed in Mach, the Airspeed Reference Bug is displayed on the Airspeed Indicator at the IAS corresponding to the selected Mach target speed and the current Mach number is shown below the Airspeed Indicator.
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Cessna Citation Mustang G1000 Integrated Flight Dec(133)
