Garmin GFC™ 600 Digital Autopilot Owner's manual

Type
Owner's manual

This manual is also suitable for

GFC 600 Autopilot Installed in Textron Aviation 525 190-02011-15 Rev. 1
Page 2 of 53 FAA APPROVED
© Copyright 2020
Garmin Ltd. or its subsidiaries
All Rights Reserved
Except as expressly provided herein, no part of this manual may be reproduced, copied, transmitted,
disseminated, downloaded or stored in any storage medium, for any purpose without the express prior
written consent of Garmin. Garmin hereby grants permission to download a single copy of this manual and
of any revision to this manual onto a hard drive or other electronic storage medium to be viewed and to
print one copy of this manual or of any revision hereto, provided that such electronic or printed copy of this
manual or revision must contain the complete text of this copyright notice and provided further that any
unauthorized commercial distribution of this manual or any revision hereto is strictly prohibited.
Garmin International, Inc.
1200 E. 151
st
Street
Olathe, KS 66062 USA
Telephone: 913-397-8200
www.garmin.com
190-02011-15 Rev. 1 GFC 600 Autopilot Installed in Textron Aviation 525
FAA APPROVED Page 3 of 53
Garmin International, Inc
Log of Revisions
FAA Approved Airplane Flight Manual Supplement for
GFC 600 Autopilot
Installed in Textron Aviation 525
REV
NO.
PAGE NO(S) DESCRIPTION
DATE OF
APPROVAL
FAA APPROVED
1 ALL Original Issue See Cover See Cover
GFC 600 Autopilot Installed in Textron Aviation 525 190-02011-15 Rev. 1
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Table of Contents
Section 1 General ....................................................................................................... 7
Use of The Supplement........................................................................................................................... 7
Symbols Used for Procedure Division .................................................................................................. 7
Abbreviations and Terminology ............................................................................................................ 8
Installed Equipment Interfaces .............................................................................................................. 9
Installed Features Checklist ................................................................................................................. 10
Section 2 Limitations ............................................................................................... 11
Section 3 Emergency Procedures .......................................................................... 12
Section 3A Abnormal Procedures .......................................................................... 20
Section 4 Normal Procedures ................................................................................. 30
GFC 600 Power Up ................................................................................................................................ 30
Flight Director / Autopilot Normal Operating Procedures................................................................. 30
Vertical Modes ..................................................................................................................................... 33
Lateral Modes ...................................................................................................................................... 37
Approaches .......................................................................................................................................... 38
Other Modes ........................................................................................................................................ 40
Section 5 Performance ............................................................................................ 41
Section 6 Weight and Balance ................................................................................ 43
Section 7 System Description ................................................................................. 45
GFC 600 Autopilot Installed in Textron Aviation 525 190-02011-15 Rev. 1
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Section 1 – General
The information in this supplement is FAA-approved material and must be attached to the Pilot’s Operating
Handbook and FAA Approved Airplane Flight Manual (POH/AFM) when the airplane has been modified by
installation of the Garmin GFC 600 Autopilot system in accordance with Garmin International, Inc. approved
data.
The information in this supplement supersedes or adds to the basic POH/AFM only as set forth below.
Users of the manual are advised to always refer to the supplement for possibly superseding information
and placarding applicable to operation of the airplane.
USE OF THE SUPPLEMENT
References in the basic Aircraft Flight Manual to the “Honeywell Flight Guidance System”, “Flight Guidance
System”, or “autopilot” now refer to the GFC 600 autopilot except as specifically noted.
The following definitions apply to WARNINGS, CAUTIONS and NOTES found throughout the supplement:
WARNING
OPERATING PROCEDURES, TECHNIQUES, ETC., WHICH CAN RESULT IN
PERSONAL INJURY OR LOSS OF LIFE IF NOT CAREFULLY FOLLOWED.
CAUTION
OPERATING PROCEDURES, TECHNIQUES, ETC., WHICH CAN RESULT IN DAMAGE
TO EQUIPMENT IF NOT CAREFULLY FOLLOWED.
NOTE
An operating procedure, technique, etc., which is considered essential to emphasize.
SYMBOLS USED FOR PROCEDURE DIVISION
Symbols are used to mark different parts of procedures. A decision must be made by the pilot to identify
the applicable part of the procedure. After the initial choice has been made, a further division of the
procedure is possible. In that case, a second choice must be made, etc. When a choice has been made,
all remaining actions, consequences, and references re listed. When the procedure is no longer required,
it will be indicated by “Procedure Completed”.
FIRST DIVISION
SECOND DIVISION
THIRD DIVISION
FOURTH DIVISION
GFC 600 Autopilot Installed in Textron Aviation 525 190-02011-15 Rev. 1
Page 8 of 53 FAA APPROVED
ABBREVIATIONS AND TERMINOLOGY
The following glossary is applicable within the Airplane Flight Manual Supplement:
AFCS Automatic Flight Control System
AGL Above Ground Level
AFM Airplane Flight Manual
AFMS Airplane Flight Manual Supplement
AP Autopilot
BC Back Course Approach
CDI Course Deviation Indicator
CWS Control Wheel Steering
DA Decision Altitude
EDM Emergency Descent Mode
ESP Electronic Stability and Protection
FAA Federal Aviation Administration
GA Go Around
GFC 600 Garmin Autopilot
GI 285 Garmin Remote Autopilot Mode Annunciator Panel
GMC 605 Autopilot Mode Control Panel
GPS Global Positioning System
HDG AFCS heading mode
HSI Horizontal Situation Indicator
ILS Instrument Landing System
KIAS Knots Indicated Airspeed
KTS Knots
LED Light Emitting Diode
LNAV Lateral Navigation
LNAV + V Lateral Navigation with Advisory Vertical Guidance
LNAV/VNAV Lateral Navigation / Vertical Navigation Approach
LOC Localizer (no glideslope available)
LP Localizer Performance
LP+V Localizer Performance with Advisory Vertical Guidance
LPV Localizer Performance with Vertical Guidance
MDA Minimum Descent Altitude
N/A Not Applicable
OEI One Engine Inoperative
POH Pilot’s Operating Handbook
RVSM Reduced Vertical Separation Minimum
SSEC Static Source Error Correction
STC Supplemental Type Certificate
VHF Very High Frequency
VNAV Vertical Navigation
VOR VHF Omni-directional Range
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FAA APPROVED Page 9 of 53
INSTALLED EQUIPMENT INTERFACES
The following is the list of installed equipment and functions associated with the GFC 600 Autopilot
installation in this airplane.
DEVICE TYPE Manufacturer / Model
If not installed, note N/A
Additional Information
GPS Navigator #1
Roll Steering Capable?
YES
NO
Vertical Navigation Capable?
YES
NO
Is GPS #1 MapMX data provided to
GFC 600 internal attitude source?
YES
NO
GPS Navigator #2
Roll Steering Capable?
YES
NO
Is #2 GPS navigation i
nterfaced to
GFC 600?
YES
NO
Vertical Navigation Capable?
YES
NO
Is GPS #2 MapMX data provided to
GFC 600 internal attitude source?
YES
NO
Primary Flight Display
Air Data Computer
Is air data provided to GFC 600
internal attitude source?
YES
NO
VHF Nav Radio #1
Is #1 NAV interfaced to TXi PFD?
YES
NO
VHF Nav Radio #2
Is #2 NAV interfaced to TXi PFD?
YES
NO
GFC 600 Autopilot Installed in Textron Aviation 525 190-02011-15 Rev. 1
Page 10 of 53 FAA APPROVED
INSTALLED FEATURES CHECKLIST
The checked autopilot modes and features are available on this aircraft.
Basic AP Features
Flight Director
Control Wheel Steering
Yaw Damper
Manual Electric Pitch Trim
Auto Pitch Trim
Overspeed Protection
Underspeed Protection
Vertical Autopilot Modes
Pitch (PIT)
Level (LVL)
Go Around (GA)
Altitude Hold (ALT)
Vertical Speed (VS)
Altitude Capture via Alt Preselect (ALTS)
Indicated Airspeed (IAS)
Vertical Navigation (VNV)
GPS Approach Glidepath (GP)
ILS Glideslope (GS)
Electronic Stability and Protection
Pitch/Roll Attitude
High Speed Protection
Low Speed Protection
Emergency Descent Mode
Manual Activation
Automatic Activation
Lateral Autopilot Modes
Roll (ROL)
Level (LVL)
Go Around (GA)
Heading (HDG)
GPS Navigation (GPS)
Roll Steering
VHF Navigation
VOR (VOR)
Approach Mode
GPS (GPS)
VOR (VAPP)
Localizer (LOC)
Localizer Backcourse (BC)
190-02011-15 Rev. 1 GFC 600 Autopilot Installed in Textron Aviation 525
FAA APPROVED Page 11 of 53
Section 2 – Limitations
This AFMS is applicable to the software versions shown below:
Software Item
Software Version
(or later FAA Approved version for this STC)
GFC 600 Software Version
V384000
This AFMS must be attached to the Pilot’s Operating Handbook and FAA Approved Airplane Flight Manual.
The GFC 600 Pilot’s Guide, P/N 190-01488-00, must be available to the pilot when using the GFC 600.
One pilot must be seated in his/her seat, with seatbelt fastened, during all autopilot operations.
Use of the autopilot or yaw damper during takeoff and landing or during a single-engine go around is
prohibited.
Emergency Descent Mode (EDM) is for emergency use only. Intentional activation of EDM, for other than
an emergency, is prohibited.
The GFC 600 AFCS preflight test must complete successfully prior to use of the autopilot, flight director or
manual electric trim.
Autopilot maximum engagement speed is 263 KIAS at and below 30,500 ft.
Autopilot maximum engagement speed is 0.71 M above 30,500 ft.
Autopilot minimum engagement speed is 95 KIAS below 18,000 FT.
Autopilot minimum engagement speed is 130 KIAS at and above 18,000 ft.
The autopilot must be disengaged below 200 ft AGL during coupled approaches with vertical navigation
and below 800 ft AGL during all other operations.
The GFC 600 autopilot is approved for Category 1 precision approaches and non-precision approaches
only.
Maximum fuel imbalance with autopilot engaged is 200 lbs.
For aircraft which do not have a GTN Navigator installed the maximum speed for LOC, BC, and VAPP
captures greater than 45° is 140 KIAS.
Automatic GPS-to-LOC CDI switching must be disabled when using NAV/APR modes unless the following
conditions are met:
GMC 605 software version 2.50 or later
AND
GTN 6XX/7XX software version 6.70 or later
AND
G600 TXi with software version 3.10 or later.
NOTE
The GFC 600 installation does not change the previously approved Kinds of Operation.
Refer to the aircraft AFM.
GFC 600 Autopilot Installed in Textron Aviation 525 190-02011-15 Rev. 1
Page 12 of 53 FAA APPROVED
Section 3 – Emergency Procedures
Some emergency situations require immediate memorized corrective action. These steps enclosed in
boxes in the emergency procedures and should be accomplished without the aid of the checklist.
AUTOPILOT MALFUNCTION
1. Control Wheel GRIP FIRMLY.
2. AP DISC / TRIM INT ButtonPRESS AND HOLD.
3. Aircraft Attitude MAINTAIN / REGAIN AIRCRAFT CONTROL.
4. Manual Elevator Trim AS REQUIRED.
5. AUTOPILOT Circuit BreakerPULL.
6. AP DISC / TRIM INT Button RELEASE.
WARNING
IN FLIGHT, DO NOT OVERPOWER THE AUTOPILOT. THE PITCH TRIM WILL
OPERATE IN THE DIRECTION OPPOSING THE OVERPOWER FORCE, WHICH WILL
RESULT IN LARGE OUT-OF-TRIM FORCES.
DO NOT ATTEMPT TO RE-ENGAGE THE AUTOPILOT OR USE MANUAL ELECTRIC
PITCH TRIM UNTIL THE CAUSE OF THE MALFUNCTION HAS BEEN CORRECTED.
CAUTION
DO NOT RELEASE THE AP DISC / TRIM INT BUTTON UNTIL AFTER PULLING THE
AUTOPILOT CIRCUIT BREAKER.
NOTE
The autopilot monitors normally detect failure and automatically disengage the
autopilot.
Pulling the AUTOPILOT circuit breaker will render the autopilot and yaw damper
inoperative.
Procedure completed
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FAA APPROVED Page 13 of 53
ELEVATOR TRIM RUNAWAY
1. Control Wheel GRIP FIRMLY.
2. AP DISC / TRIM INT Button PRESS AND HOLD.
3. Aircraft Attitude MAINTAIN / REGAIN AIRCRAFT CONTROL.
4. Throttles AS REQUIRED
5. Speed Brakes AS REQUIRED
6. Manual Elevator Trim AS REQUIRED.
7. AUTOPILOT Circuit Breaker (R Panel)PULL.
8. AP DISC / TRIM INT Button RELEASE.
WARNING
IN FLIGHT, DO NOT OVERPOWER THE AUTOPILOT. THE PITCH TRIM WILL
OPERATE IN THE DIRECTION OPPOSING THE OVERPOWER FORCE, WHICH WILL
RESULT IN LARGE OUT-OF-TRIM FORCES.
DO NOT ATTEMPT TO RE-ENGAGE THE AUTOPILOT OR USE MANUAL ELECTRIC
PITCH TRIM UNTIL THE CAUSE OF THE MALFUNCTION HAS BEEN CORRECTED.
NOTE
The autopilot monitors normally detect failure and automatically disengage the
autopilot.
Do not release the AP DISC / TRIM INT Button until after pulling the AUTOPILOT
circuit breaker.
Pulling the AUTOPILOT circuit breaker will render the autopilot and yaw damper
inoperative.
Procedure completed
GFC 600 Autopilot Installed in Textron Aviation 525 190-02011-15 Rev. 1
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INADVERTENT STALL (STICK SHAKER, BUFFET, AND/OR ROLL-
OFF)
IF BUFFET AND/OR ROLL-OFF
See AFM procedure “INADVERTANT STALL (STICK SHAKER, BUFFET, AND/OR ROLL-OFF)”
IF STICK SHAKER WITH AUTOPILOT ON
See “UNDERSPEED PROTECTION (MINSPEED) ENGAGEMENT” procedure this section
IF STICK SHAKER WITH AUTOPILOT OFF
See AFM procedure “INADVERTANT STALL (STICK SHAKER, BUFFET, AND/OR ROLL-OFF)”
NOTE
When autopilot is OFF and stick shaker activates, the pitch servo will engage and hold a
nose down force on the control wheel. If stick shaker is allowed to remain active for more
than approximately 10 seconds, the autopilot will automatically engage with LVL mode
selected.
AUTOPILOT FAILURE / ABNORMAL DISCONNECT
1. AP DISC / TRIM INT ButtonPRESS AND RELEASE.
2. Aircraft Attitude MAINTAIN / REGAIN AIRCRAFT CONTROL.
NOTE
Autopilot failure / abnormal disconnect is indicated by a red LED illuminated next to the
AP key, AP FAIL in message window on GMC 605 display, and / or continuous aural tone.
The autopilot cannot be re-engaged if the AP FAIL annunciation present.
Procedure completed
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FAA APPROVED Page 15 of 53
OVERSPEED PROTECTION (MAXSPEED SHOWN ON GMC 605
DISPLAY)
1. Throttles REDUCE.
2. Aircraft Attitude and Altitude MONITOR.
AFTER OVERSPEED CONDITION IS CORRECTED
3. Autopilot RESELECT VERTICAL AND LATERAL MODES AS NECESSARY.
4. Throttles ADJUST AS NECESSARY.
NOTE
Overspeed protection will be accompanied by a MAXSPEED message on the GMC 605
display. Overspeed protection mode provides a pitch up command to decelerate the
airplane at or below the maximum autopilot operating speed. Overspeed protection will
not activate in altitude hold (ALT), glideslope (GS), or glidepath (GP) modes.
Procedure completed
UNDERSPEED PROTECTION (MINSPEED SHOWN ON GMC 605
DISPLAY OR STICK SHAKER ACTIVE)
1. Throttles MAXIMUM THRUST.
2. Aircraft Attitude and Altitude MONITOR.
AFTER STICK SHAKER DEACTIVATES
3. Autopilot RESELECT VERTICAL AND LATERAL MODES AS NECESSARY
4. Throttles ADJUST AS NECESSARY
NOTE
Underspeed protection is triggered by stick shaker activation when the autopilot is
engaged. When underspeed protection is active, the FD provides a pitch down
command to maintain 2 KIAS above stick shaker de-activation airspeed.
Procedure completed
GFC 600 Autopilot Installed in Textron Aviation 525 190-02011-15 Rev. 1
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AUTOPILOT EMERGENCY DESCENT MODE (EDM ON SHOWN ON
GMC 605 DISPLAY)
NOTE
The autopilot must be engaged for Autopilot Emergency Descent Mode to activate.
AUTOMATIC ACTIVATION
IF CAB ALT 10,000 FEET WARNING LIGHT ON AND MASTER WARNING
1. Oxygen Masks DON and EMER.
2. Microphone Select Switches MIC OXY MASK.
3. Throttle - IDLE.
4. Speed Brakes EXTEND.
5. Passenger Oxygen MAKE SURE passengers are receiving oxygen.
6. Passenger Advisory Switch PASS SAFETY.
7. Transponder EMERGENCY.
8. Altitude MONITOR FOR LEVEL OFF AT 15,000 FEET MSL
IF DESCENT INTO ICING CONDITIONS IS REQUIRED
9. Throttles AS REQUIRED (maintain sufficient power, above 70% N
2
, to keep the ANTI-ICE
annunciators extinguished).
Procedure completed
IF DESCENT INTO ICING CONDITIONS IS NOT REQUIRED
Procedure completed
IF CABIN ALTITUDE IS NORMAL
1. EDM Inhibit Button PRESS AND RELEASE.
MANUAL ACTIVATION
1. Manual EDM Button PRESS AND RELEASE.
2. Throttle - IDLE
3. Speed Brakes EXTEND.
4. Passenger Advisory Switch PASS SAFETY.
5. Transponder EMERGENCY.
6. Altitude MONITOR FOR LEVEL OFF AT 15,000 FEET MSL
IF DESCENT INTO ICING CONDITIONS IS REQUIRED
7. Throttles AS REQUIRED (maintain sufficient power, above 70% N
2
, to keep the ANTI-ICE
annunciators extinguished).
Procedure completed
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FAA APPROVED Page 17 of 53
IF DESCENT INTO ICING CONDITIONS IS NOT REQUIRED
Procedure completed
GFC 600 Autopilot Installed in Textron Aviation 525 190-02011-15 Rev. 1
Page 18 of 53 FAA APPROVED
TO EXIT EDM
1. AP DISC / TRIM INT or AP Button PRESS AND RELEASE.
Procedure completed
WARNING
AUTOPILOT EDM WILL COMMAND AIRSPEED TO V
MO
/M
MO
MINUS 10 KNOTS AND
THUS WILL NOT ACHIEVE MAXIMUM DESCENT RATE. IF MAXIMUM DESCENT
RATE IS REQUIRED DISENGAGED THE AUTOPILOT AND HAND FLY THE
AIRPLANE.
CAUTION
WHILE EDM IS ACTIVE, THE AUTOPILOT CANNOT BE DISENGAGED BY
ACTUATING EITHER HALF OF THE MANUAL ELECTRIC TRIM SPLIT SWITCH. ONLY
THE AP DISC / TRIM INT OR AP BUTTON WILL DISENGAGE THE AUTOPILOT.
ALTITUDE PRE-SELECT AND AIRSPEED REFERENCES ARE LOCKED OUT AND
CANNOT BE CHANGED WHILE EDM IS ACTIVE VIA ANY COCKPIT CONTROL.
NOTE
Refer to the G600 TXi AFMS for location of manual EDM activation and EDM inhibit
buttons. After level-off, the pilot must retract the speed brakes and apply thrust to resume
normal flight. If the airplane slows and the stick shaker activates, the autopilot will enter
Underspeed Protection.
AC POWER FAILURE (INVERTER FAIL 1 AND 2 CAUTION LIGHT
AND AC FAIL WARNING LIGHT ON, MASTER CAUTION AND
MASTER WARNING) DUAL INVERTER FAILURE
The note stating, “The Honeywell Flight Guidance System will be inoperative.” is not applicable with
the GFC 600 installed. Remainder of AFM procedure is unchanged.
EFIS FAILURE (FLIGHT GUIDANCE COMPUTER FAILURE)
The statement in step 1. of “IF EFIS STILL DISPLAYS RED X, OR BOTH DISPALYS BLANK” for
“The autopilot will be inoperative” is not applicable with the GFC 600 installed. Remainder of AFM
procedure is unchanged.
AC POWER FAILURE (INVERTER FAIL WARNING LIGHT ON AND
MASTER WARNING)
The note stating, “The Honeywell Flight Guidance System will be inoperative.” is not applicable with
the GFC 600 installed. Remainder of AFM procedure is unchanged.
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Section 3AAbnormal Procedures
ELECTRONIC STABILITY AND PROTECTION (ESP) ACTIVATION
1. Throttles ADJUST AS NECESSARY.
2. Aircraft Attitude MAINTAIN / REGAIN AIRCRAFT CONTROL
3. LVL Key PRESS TO ENGAGE AUTOPILOT
NOTE
If ESP is active for at least 50% of the last 20 seconds, the autopilot will automatically
engage in LVL mode, an aural ENGAGING AUTOPILOTwill be played, and the autopilot
will roll the wings level and fly at zero-vertical speed. Refer to Section 7 System
Description for further information.
AFTER RECOVERY
4. Autopilot RESELECT VERTICAL AND LATERAL MODES AS NECESSARY
Procedure completed
AUTOPILOT PRE-FLIGHT TEST FAIL
Illumination of the red LED next to the AP key and AP FAIL on the GMC 605 display indicates the
AFCS system failed the automatic Pre-Flight test. The autopilot, yaw damper, ESP, and electric
elevator trim are inoperative. Flight Director may still function.
LOSS OF AIR DATA (AIRDAT FAIL ON GMC 605 DISPLAY)
IF TXi PFD INSTALLED WITH DUAL ADC SOURCES
1. G600 TXi AFMS abnormal procedure for loss of air dataCOMPLETED.
IF AIRDAT FAIL MESSAGE REMOVED
Procedure completed
IF AIRDAT FAIL MESSAGE REMAINS
CAUTION
AUTOPILOT PERFORMANCE IS AFFECTED IF AIRSPEED IS INVALID OR
INACCURATE. USE OF THE AUTOPILOT WITH INVALID OR INACCURATE
AIRSPEED SHOULD BE DISCONTINUED.
NOTE
With loss of air data, one or more modes dependent on air data may not be supported
such as ESP high speed, OSP, USP, IAS, VS, or ALT modes.
Procedure completed
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Garmin GFC™ 600 Digital Autopilot Owner's manual

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Owner's manual
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