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APPENDICES
INDEX
Section 7 Automaticutomaticutomatic Flight Control Systemystem Noteote: The approved Airplane Flight Manual (AFM) always supersedes this Pilot’s Guide.
The GFC 700 is a digital Automatic Flight Control System (AFCS), fully integrated within the G1000 System avionics architecture. The System Overview section provides a block diagram to support this system description. GFC 700 AFCS functionality in the Cessna Citation Mustang is distributed across the following Line Replaceable Units (LRUs):
• GDU 1040A Primary Flight Displays (PFDs) (2)• GMC 710 AFCS Control Unit• GIA 63W Integrated Avionics Units (IAUs) (2)• GSA 80 AFCS Servos (2)• GSA 81 AFCS Servos (2)• GSM 85A Servo Gearboxes (4)
The GFC 700 AFCS can be divided into these main operating functions:
• Flight Director (FD) — The Cessna Citation Mustang has two flight directors, each operating within an IAU and referred to as pilot-side and copilot-side. Commands for the selected flight director are displayed on both PFDs.
The flight director provides:
–
Command Bars showing pitch/roll guidance
–
Vertical/lateral mode selection and processing
–
Autopilot communication
• Autopilot (AP) — Autopilot operation occurs within the pitch, roll, and pitch trim servos. It also provides servo monitoring and automatic flight control in response to flight director steering commands, Attitude and Heading Reference System (AHRS) attitude and rate information, and airspeed.
• Yaw Damper (YD) — The yaw servo is self-monitoring and provides Dutch roll damping and turn coordination in response to yaw rate, roll angle, lateral acceleration, and airspeed.
• Manual Electric Pitch Trim (MEPT) — The pitch trim servo provides manual electric pitch trim capability when the autopilot is not engaged.
Garmin G1000 Pilot’s Guide for the Cessna Citation Mustang
190-00494-02 Rev. B
364
Automaticutomaticutomatic Flight Control Systemystem
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EICAS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICES
INDEX
7.1 AFCS Controls
The AFCS Control Unit is positioned above the MFD, and has the following controls:
1
HDG Key
Selects/deselects Heading Select Mode
2
APR Key
Selects/deselects Approach Mode
3
NAV Key
Selects/deselects Navigation Mode
4
FD Key
Activates/deactivates the flight director only
Pressing once turns on the selected flight director in the default vertical and lateral modes. Pressing again deactivates the flight director and removes the Command Bars. If the autopilot is engaged, the key is disabled.
5
XFR Key
Transfers between the active flight director and standby flight director
6
ALT Key
Selects/deselects Altitude Hold Mode
7
VS Key
Selects/deselects Vertical Speed Mode
8
FLC Key
Selects/deselects Flight Level Change Mode
9 17
CRS Knobs
Adjust the Selected Course (while in VOR, LOC, or OBS Mode) in 1° increments on the Horizontal Situation Indicator (HSI) of the corresponding PFD
Press to re-center the Course Deviation Indicator (CDI) and return course pointer directly TO the bearing of the active waypoint/station
10
SPD Key
Toggles Airspeed Reference between IAS and Mach for Flight Level Change Mode
11
NOSE UP/DN Wheel
Adjusts the reference in Pitch Hold, Vertical Speed, and Flight Level Change modes (see Table 7-1 for change increments in each mode)
12
VNV Key
Selects/deselects Vertical Path Tracking Mode for Vertical Navigation flight control
13
ALT SEL Knob
Controls the Selected Altitude in 100-ft increments (a finer resolution of 10 feet is available under approach conditions)
14
YD Key
Engages/disengages the yaw damper
15
AP Key
Engages/disengages the autopilot
16
BANK Key
Manually selects/deselects Low Bank Mode
18
BC Key
Selects/deselects Backcourse Mode
19
HDG Knob
Adjusts the Selected Heading and bug in 1° increments on the HSI (both PFDs)
Press to synchronize the Selected Heading to the current heading on the pilot-side PFD
Figure 7-1 GMC 710 AFCS Control Unit12345678Annunciator Light109171615141312111819
190-00494-02 Rev. B Garmin G1000 Pilot’s Guide for the Cessna Citation Mustang 365
Automatic utomatic utomatic Flight Control System ystem
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS EICAS AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE AFCS ADDITIONAL
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Cessna Citation Mustang G1000 Integrated Flight Dec(128)
