MOONEY INTERNATIONAL CORPORATION
M20V SERVICE AND MAINTENANCE MANUAL
Page
Date
5
Rev Date
MAR 2017
22-00-00 AUTOPILOT SYSTEM (OPTIONAL)
GARMIN GFC700 AUTOPILOT (OPTIONAL)
There is no single LRU (Line Replaceable Units) with
the name “GFC 700”; rather “GFC 700” refers to an
integrated autopilot and flight director system, with
functions provided by multiple G1000 LRUs and ser-
vos. Refer to the G1000 Line Maintenance and Con-
figuration Manual (#190- 00303 - 04 Rev F or later
FAA approved revision), Instructions for Continued
Airworthiness (#190- 00638- 002 Rev A) or later
FAA a pproved revisions and the Garmin G1000
Cockpit reference guide for more detailed informa-
tion.
The LRU’s used by Mooney (if installed)
- GDU 10XX Multi Function Display (MFD)
- GDU 10XX Primary Flight Display (PFD)
- GMA 1347(X) Audio Panel with Marker Beacon
Receiver
- GIA 63(X) Integrated Avionics Units (IAU)
- GDC 74(X) Air Data Computer (ADC)
- GEA 71 Engine/Airframe Unit
- GTX 33(X) Transponder
- GRS 77 Attitude and Heading Reference
System (AHRS)
- GMU 44 Magnetometer
- GDL 69(X) Satellite Data Link Receiver
- GSA 8(X) AFCS Servo Actuator
- GSM 86 Servo Gearbox
- GTP 59 Temperature Probe
The GFC 700 Autopilot is a two- axis fail- safe digital
flight control system that is integrated into the
G1000. It consists of the following components
which are added to the existing G1000 components:
- GSA 8(X) Servo Actuators (Roll, Pitch, Pitch
Trim)
- GSM 86 Servo Mounts (Roll, Pitch, Pitch Trim).
The following functions are provided by the GFC 700
in this installation:
-FlightDirector
- Autopilot
- Manual Electric Pitch Trim
1. Flight Director - The Flight Director operates
within GIA1 and uses air data, attitude, and naviga-
tion data to calculate commands for display to the pi-
lot and for the Autopilot. Flight Director command
bars and mode annunciations are sent to the PFD
through a high- speed Ethernet connection for dis-
play. The Flight Director operates independently of
the Autopilot and allows the pilot to hand- fly the air-
craft using command bar guidance if desired.
2. Autopilot: - The Autopilot operates utilizing the
three GSA Servos. Flight Director data is processed
within the three servos and translated into aircraft
flight control surface commands. T he Autopilot can-
not operate unless the Flight Director is engaged.
A. GDU 10XX PFD - Displays the Flight Director
command bars and the autopilot mode annunci-
ations.
B. GDU 10XX MFD - Provides controls for the
autopilot functions.
C. GIA 63 - Performs the calculations to display
the Flight Director command bars on the PFD and
sends control movement commands to the GSA 81
autopilot servos.
D. GSA 8(X) - Servo which actuates the control
surfaces based on commands received from the
GIA 63.
E. GSM 86 - Servo Mount connects to the GSA
81 Servo and contains slip clutches preset to a de-
fined calibration. The GSM 86 servo g ear box clutch
is available in three torque sizes ( short, medium, and
long), for each of the available mechanical interface
configurations (spiral, continuous, and sprocket,
etc.), with torque ranges defined by Table below:
1. Short Clutch: 15- 65 in- lbs 15% P/N
383- 00000- 15 thru 383- 00000- 65
2. Medium Clutch: 66- 120 in- lbs 15% P/N
383- 00000- 66 thru 383- 00001- 20
3. Long Clutch: 121- 180 in- lbs 15% P/N
383- 00001- 21 thru 383- 00001- 80
3. Configuration and Testing - After removal and
replacement, LRUs must be configured and tested,
refer to the G1000 Line Maintenance and Configura-
tion Manual (#190- 00303- 04 Rev F or later FAA ap-
proved revision) for more detailed information.
-CAUTION-
When removing and/or replacing any G1000
component, always ensure that ai rcraft power
is off. Unplug any auxiliary power supplies.
Before removing any G1000 LRU, it is re-
quired that the technician verify the LRU soft-
ware part number and version.
22-00-00
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