Garmin Approach G5 - GPS-Enabled Golf Handheld User manual

190-01112-10 October 2017 Revision 9
Page 1
Garmin G5
Electronic Flight Instrument
Part 23 AML STC Installation Manual

Garmin G5 Electronic Flight Instrument Part 23 AML STC Installation Manual 190-01112-10
Rev. 9
Page 2
©2016, 2017 Garmin International or its subsidiaries
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and of any revision to this manual onto a hard drive or other electronic storage medium to be viewed
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any unauthorized commercial distribution of this manual or any revision hereto is strictly prohibited.
Garmin®, flyGarmin®, are registered trademarks of Garmin International or its subsidiaries. G5™
trademark of Garmin International or its subsidiaries. These trademarks may not be used without the
express permission of Garmin.
Garmin International, Inc
1200 E. 151st Street Olathe, KS 66062 USA
Telephone:[phone]
Technical Support and Field Service Engineers: 888.606.5482
www.flyGarmin.com
Garmin (Europe) Ltd.
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Telephone: [phone]
Fax: [phone]
Garmin AT,Inc.
2345 Turner Rd. SE
Salem, OR 97302 USA
Telephone:[phone]

Garmin G5 Electronic Flight Instrument Part 23 AML STC Installation Manual 190-01112-10
Rev. 9
Page 3
RECORD OF REVISIONS
Revision
Revision Date
Description
1
07-14-2016
Initial Release
2
07-21-2016
Revised to incorporate comments and changes driven by document
reviews.
3
08-08-2016
Removed shock mount installation limitation in section 2.1, removed
shock mount replacement instructions in section 4.1 and added
engine run up details in section 5.3.7.2.
4
01-05-2017
Updated Section 1.5 to show software P/N 006-B2304-02, revised
section 3.4.1 to add clarification on GPS receiver configuration,
updated Table 5-1 to add clarification on GPS receiver configuration.
5
03-07-2017
Revised to add G5 DG/HSI, supporting equipment and associated
functions.
6
04-26-2017
Updated GAD 29 and GMU 11 Part Numbers
7
06-20-2017
Updated GMU 11 & GAD 29 Dimensions and EMI Test Harness
8
10/14/2017
Revised to cover changes associated with the addition of the
G5/GAD 29B third party autopilot interfaces.
9
10/26/2017
Update third party autopilot configurations and minor typographical
corrections.
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Garmin G5 Electronic Flight Instrument Part 23 AML STC Installation Manual 190-01112-10
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INFORMATION SUBJECT TO EXPORT CONTROL LAWS
This document may contain information which is subject to the Export Administration Regulations
(“EAR”) issued by the United States Department of Commerce (15 CFR, Chapter VII, Subchapter C)
and which may not be exported, released, or disclosed to foreign nationals inside or outside of the United
States without first obtaining an export license. A violation of the EAR may be subject to a penalty of
up to 10 years imprisonment and a fine of up to $1,000,000 under Section 2410 of the Export
Administration Act of 1979. Include this notice with any reproduced portion of this document.
DEFINITIONS OF WARNINGS, CAUTIONS, AND NOTES
This area intentionally blank
WARNING
Warnings are used to bring to the installer’s immediate attention not only damage
to the equipment but personal injury may occur if the instruction is disregarded.
CAUTION
Cautions are used to alert the individual damage to equipment may result if the
procedural step is not followed to the letter.
NOTE
Notes are used to expand and explain the preceding step and provide further
understanding of the reason for the particular operation.

Garmin G5 Electronic Flight Instrument Part 23 AML STC Installation Manual 190-01112-10
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Page 5
WARNING
This product, its packaging, and its components contain chemicals known to the State of
California to cause cancer, birth defects, or reproductive harm. This notice is being provided in
accordance with California's Proposition 65. If you have any questions or would like additional
information, please refer to our web site at www.garmin.com/prop65.
WARNING
Perchlorate Material –special handling may apply, See www.dtsc.ca.gov./hazardouswaste/
perchlorate.
BATTERY WARNINGS:
If these guidelines are not followed, the lithium-ion battery may experience a shortened life span
or may present a risk of damage to the device, fire, chemical burn, electrolyte leak, and/or injury.
Do not leave the battery exposed to a heat source or in a high temperature environment. To help
prevent damage, store the battery out of direct sunlight.
For maximum battery longevity, store within a temperature range of 32˚ to 77˚F (from 0˚ to
25˚C).
Do not use a sharp object to remove the battery.
Do not disassemble, puncture, damage, or incinerate the device or battery.
Keep the battery away from children.
Only replace the battery with the approved replacement from Garmin. Using another battery
presents a risk of fire or explosion. To purchase a replacement battery, see you Garmin dealer or
the Garmin website.
Contact your local waste disposal department to dispose of the device and battery in accordance
with applicable local laws and regulations.
CAUTION:
The display uses a lens with a special coating that may be sensitive to skin oils, waxes, and
abrasive cleaners. CLEANERS CONTAINING AMMONIA WILL HARM THE ANTI-
REFLECTIVE COATING. It is very important to clean the lens using a clean, lint-free cloth and
a cleaner that is specified as safe for anti-reflective coatings. Avoid any chemical cleaners or
solvents that can damage plastic components.
CAUTION:
The G5 does not contain any user-serviceable parts. Repairs should only be made by an
authorized Garmin service center. Unauthorized repairs or modifications could result in
permanent damage to the equipment and void both the warranty and the authority to operate this
device under FAA, FCC, and other applicable regulations.

Garmin G5 Electronic Flight Instrument Part 23 AML STC Installation Manual 190-01112-10
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NOTE:
Use of polarized eyewear may cause the display to appear dim or blank.
NOTE
All screen shots used in this document are current at the time of publication. Screen shots are
intended to provide visual reference only. All information depicted in screen shots, including
software file names, versions, and part numbers, is subject to change and may not be up to date.
This area intentionally blank

Garmin G5 Electronic Flight Instrument Part 23 AML STC Installation Manual 190-01112-10
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TABLE OF CONTENTS
SECTION ..............................................................................................................................................PAGE
1GENERAL DESCRIPTION....................................................................................................................12
1.1 Introduction ....................................................................................................................................12
1.2 Acronyms and Abbreviations .........................................................................................................12
1.3 Reference Documents ...................................................................................................................13
1.4 STC Permission.............................................................................................................................13
1.5 Scope.............................................................................................................................................13
1.6 System Overview...........................................................................................................................14
1.7 Technical Specifications.................................................................................................................21
2LIMITATIONS ........................................................................................................................................22
2.1 Installation Limitations....................................................................................................................22
2.2 OperationalLimitations...................................................................................................................23
3INSTALLATION OVERVIEW.................................................................................................................23
3.1 Introduction ....................................................................................................................................24
3.2 Installation Materials.......................................................................................................................24
3.3 Test Equipment..............................................................................................................................27
3.4 Installation Considerations.............................................................................................................27
4INSTALLATION PROCEDURES...........................................................................................................34
4.1 Mechanical Installation...................................................................................................................34
4.2 Antenna Cable Installation and Connections.................................................................................64
4.3 Electrical Installation ......................................................................................................................65
4.4 Weight and Balance.......................................................................................................................72
4.5 Electrical Load Analysis.................................................................................................................72
4.6 Electrical Bonding ..........................................................................................................................80
5SYSTEM INTERCONNECTS................................................................................................................86
5.1 G5 Interconnect Notes ...................................................................................................................87
5.2 Power and Ground.........................................................................................................................88
5.3 G5 (Attitude Indicator) with External GPS Antenna.......................................................................89
5.4 G5 (Attitude Indicator) with GPS Position Input.............................................................................91
5.5 G5 (Attitude Indicator) and GMU 11 with GPS Position Input .......................................................94
5.6 G5 (Attitude Indicator or DG), GMU 11 and GPS Antenna............................................................97
5.7 G5 (HSI) with VHF Navigator.......................................................................................................100
5.8 G5 (HSI) with GPS/VHF Navigator ..............................................................................................103
5.9 Dual G5 without Navigator...........................................................................................................108
5.10 Dual G5 with VHF Navigator........................................................................................................111
5.11 Dual G5 with GPS/VHF Navigator...............................................................................................115
5.12 GAD 29B Interface to Third-Party Autopilots...............................................................................121
6SYSTEM CONFIGURATION AND CHECKOUT PROCEDURES ......................................................132
6.1 Overview ......................................................................................................................................132
6.2 Mounting, Wiring, and Power Checks..........................................................................................132
6.3 Post-Installation Checkout Procedures........................................................................................132
6.4 Documentation Checks................................................................................................................154

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FIGURES
Figure Page
Figure 1-1, G5 Electronic Flight Instrument (Attitude) ...................................................................15
Figure 1-2 G5 Standby Battery ......................................................................................................16
Figure 1-3 G5 Electronic Flight Instrument (DG/HSI) ....................................................................18
Figure 1-4 GMU 11 ........................................................................................................................20
Figure 1-5 GAD 29/29B..................................................................................................................21
Figure 3-1 CAN Bus Backbone......................................................................................................30
Figure 3-2 Correct CAN BUS Wiring Example and Node Connections.........................................30
Figure 3-3 Incorrect CAN Wiring Example.....................................................................................31
Figure 3-4 CAN Bus Termination (011-02887-00) for G5 and GMU 11 ........................................31
Figure 3-5 CAN Bus Termination for GAD 29/29B ........................................................................31
Figure 4-1 Typical G5 Installations for IFR Approved Aircraft ......................................................35
Figure 4-2 G5 Mounting Ring........................................................................................................36
Figure 4-3 Maximum Misalignment of the G5 in the Lateral Axis .................................................36
Figure 4-4 Maximum Misalignment of the G5 in the Longitudinal Axis.........................................37
Figure 4-5 Maximum Misalignment of the G5 in the Vertical Axis ................................................37
Figure 4-6 G5 Alignment Pin..........................................................................................................38
Figure 4-7 G5 Hex Driver Insertion................................................................................................38
Figure 4-8 G5 Captive Mounting Screw Replacement ..................................................................39
Figure 4-9 Required Vertical Spacing Between G5 Units..............................................................40
Figure 4-10 Instrument Panel Modification ....................................................................................40
Figure 4-11 G5 Adapter Plate........................................................................................................41
Figure 4-12 G5 Adapter Plate Assembly .......................................................................................41
Figure 4-13, G5 Instrument Hole Dimensions................................................................................42
Figure 4-14, Clearance for Connections........................................................................................43
Figure 4-15 Recessed Adapter Plate.............................................................................................43
Figure 4-16 Recessed Adapter Plate Template Reference Holes.................................................44
Figure 4-17 Single G5 Recessed Adapter Plate Installation..........................................................45
Figure 4-18 Single G5 Recessed Installation.................................................................................45
Figure 4-19 Dual Vertical G5 Recessed Adapter Plate Installation...............................................46
Figure 4-20 Dual Vertical G5 Recessed Installation......................................................................46
Figure 4-21 Dual Horizontal G5 Recessed Installation.................................................................47
Figure 4-22, Instrument Panel Limitations .....................................................................................48
Figure 4-23 Instrument Panel; View looking forward.....................................................................49
Figure 4-24 Instrument Panel view with instruments removed......................................................49
Figure 4-25 Recessed Adapter Plate located on panel .................................................................50

Garmin G5 Electronic Flight Instrument Part 23 AML STC Installation Manual 190-01112-10
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Figure 4-26 Match drilling through panel, using adapter plate as template...................................50
Figure 4-27 Preliminary trimming of adapter plate.........................................................................51
Figure 4-28 Adapter plate located on far side of instrument panel................................................51
Figure 4-29 Additional trimming of adapter plate required.............................................................52
Figure 4-30 Trimmed adapter plate ...............................................................................................52
Figure 4-31 Adapter plate mounting holes.....................................................................................53
Figure 4-32 Dual G5 panel cutout, using match drilled holes for reference ..................................53
Figure 4-33 Instrument panel after cutout for dual vertical G5 units..............................................54
Figure 4-34 Adapter plate installed................................................................................................54
Figure 4-35 Dual vertical G5 units installed...................................................................................55
Figure 4-36 G5 flush mount adapter plate printable template .......................................................56
Figure 4-37 GMU 11 Pitch and Roll Requirements .......................................................................58
Figure 4-38 GMU 11 Heading Alignment Requirements ...............................................................59
Figure 4-39 GMU 11 Mounting Hardware......................................................................................60
Figure 4-40 GAD 29/29B Mounting Hardware...............................................................................62
Figure 4-41 GAD 29B Inline Transformer Mounting Instructions...................................................62
Figure 4-42 Wiring Harness Connector Assembly.........................................................................69
Figure 4-43 Shield Termination Methods.......................................................................................70
Figure 4-44 Ammeter Placement for Current Measurements........................................................75
Figure 4-45 Blank Electrical Load Tabulation Form, Sheet 1 of 2.................................................77
Figure 4-46 Blank Electrical Load Tabulation Form, Sheet 2 of 2.................................................78
Figure 4-47 Sample Completed Electrical Load Tabulation Form, Sheet 1 of 2 ...........................79
Figure 4-48 Sample Completed Electrical Load Tabulation Form, Sheet 2 of 2 ...........................80
Figure 4-49 Fiberglass Insulation for Carbon Fiber Material .........................................................82
Figure 4-50 Aluminum Tape Joint..................................................................................................83
Figure 4-51 Aluminum Tape Ground Termination .........................................................................84
Figure 4-52 GAD 29/29B Aluminum Tape Installation...................................................................84
Figure 5-1 G5 Interconnect Notes..................................................................................................87
Figure 5-2 Power and Ground .......................................................................................................88
Figure 5-3 G5 (Attitude Indicator) with External GPS Antenna......................................................89
Figure 5-4 G5 (Attitude Indicator) with GPS Position Input ...........................................................91
Figure 5-5 G5 (Attitude Indicator) and GMU 11 with GPS Position Input......................................94
Figure 5-6 G5 (Attitude Indicator or DG), GMU 11 and GPS Antenna ..........................................97
Figure 5-7 G5 (HSI) with VHF Navigator .....................................................................................100
Figure 5-8 G5 (HSI) with GPS/VHF Navigator.............................................................................103
Figure 5-9 G5 (HSI) with GPS/VHF Navigator Notes ..................................................................104
Figure 5-10 Dual G5 without Navigator........................................................................................108

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Figure 5-11 Dual G5 with VHF Navigator ....................................................................................111
Figure 5-12 Dual G5 with GPS/VHF Navigator............................................................................115
Figure 5-13 Dual G5 with GPS/VHF Navigator Notes .................................................................116
Figure 5-14 GAD 29B Interface to Century Autopilots Sheet 1 of 2 ............................................122
Figure 5-15 GAD 29B Interface to Century Autopilots Sheet 2 of 2 ............................................123
Figure 5-16 GAD 29B Interface to Cessna Autopilots Sheet 1 of 2.............................................125
Figure 5-17 GAD 29B Interface to Cessna Autopilots Sheet 2 of 2.............................................126
Figure 5-18 GAD 29B Interface to Garmin Autopilots..................................................................127
Figure 5-19 GAD 29B Interface to Honeywell Autopilots.............................................................128
Figure 5-20 GAD 29B Interface to S-TEC Autopilots...................................................................130
Figure 6-1, Attitude Calibration Example.....................................................................................138
Figure 6-2, Example of Calibration Equations .............................................................................138
Figure 6-3 Engine Vibration Test Failure Indication.....................................................................140
Figure 6-4 Example EMC Source/Victim Matrix...........................................................................151
Figure 6-5 J51 on the G5.............................................................................................................156
Figure 6-6 J111 on the GMU 11 ..................................................................................................157
Figure 6-7 J291 on the GAD 29/29B............................................................................................159
Figure 6-8 J292 on the GAD 29/29B............................................................................................159
Figure 6-9 G5 Outline Drawing ....................................................................................................162
Figure 6-10 G5 Installation Drawing ............................................................................................163
Figure 6-11 G5 Panel Cutout Measurements (Not to Scale).......................................................164
Figure 6-12 GAD 29/29B Outline Drawing...................................................................................165
Figure 6-13 GAD 29/29B Install Breakdown................................................................................166
Figure 6-14 GMU 11 Outline Drawing..........................................................................................167
Figure 6-15 GMU 11 Install Breakdown.......................................................................................168
Figure 6-16 Magnetic Interference Test Harness ........................................................................170
Figure 6-17 GMU 11 Overbraid Installation.................................................................................174
Figure 6-18 GMU 11 Overbraid Termination ...............................................................................175

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TABLES
Table Page
Table 1-1: Reference Documents..................................................................................................13
Table 1-2 G5 Attitude and G5 DG/HSI Equipment ........................................................................14
Table 1-3: Physical Characteristics................................................................................................21
Table 1-4: Power Requirements ....................................................................................................22
Table 3-1: Contents of the G5 Installation Kit (011-03892-00)......................................................24
Table 3-2: Contents of the GMU 11 Installation Kit (011-04349-90) .............................................24
Table 3-3: Contents of the Connector Kit (011-03002-00).............................................................24
Table 3-4: Contents of the GAD 29/29B Connector Kit (011-03271-00) .......................................25
Table 3-5: G5 Adapter Plate ..........................................................................................................25
Table 3-6: G5 Recessed Adapter Plate.........................................................................................25
Table 3-7 Supported Garmin Antennas .........................................................................................28
Table 3-8 Supported Non-Garmin Antennas .................................................................................28
Table 3-9 GPS Antenna Minimum Requirements..........................................................................28
Table 3-10: G5 and Supporting LRU Circuit Breaker Labels.........................................................29
Table 4-1 GMU 11 Supporting Hardware ......................................................................................58
Table 4-2 GAD 29/29B Supporting Hardware................................................................................61
Table 4-3: Contact Crimp Tooling..................................................................................................65
Table 4-4: G5 (1P51, 2P51) and GMU11 (P111) Connector Parts ...............................................66
Table 4-5: GAD 29/29B 9-pin (P291) Connector Parts..................................................................67
Table 4-6: GAD 29/29B 25-pin (P292) Connector Parts................................................................68
Table 4-7: LRU Weights.................................................................................................................72
Table 4-8: Sample Net Electrical Load Change Calculation..........................................................73
Table 5-1: Third-Party Autopilots .................................................................................................121
Table 6-1: Post-Installation Calibration Procedure Summary......................................................136
Table 6-2: Heading Verification....................................................................................................143

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1 GENERAL DESCRIPTION
1.1 Introduction
The G5 is an electronic instrument display capable of operating as a primary attitude indicator,
backup attitude indicator with primary rate-of-turn indicator, DG or HSI. This STC approves
the installation of the G5(s) in the existing instrument panel.
In the attitude application, the Garmin G5 indicator can replace an existing vacuum attitude
indicator or rate-of-turn indicator. The G5 can also replace existing vacuum driven DGs or
existing HSI’s, either standalone or in combination with a G5 attitude display.
When installed as a DG/HSI, the G5 can interface with third party autopilots using the GAD
29B.
The G5 is designed to be installed into a standard 3 1/8” instrument hole in place of the
existing indicators mentioned previously. The other primary flight instruments remain in the
current approved locations. The G5 cannot replace an existing primary attitude indicator that
has a Flight Director; however, if the existing attitude indicator is interfaced to the autopilot
and it does not include a Flight Director, that existing attitude indicator can be moved to the
rate-of-turn indicator location and the G5 installed as the primary attitude indicator.
Alternatively, for installations that do not install the G5 as a replacement primary attitude
indicator, the G5 can be installed as a second attitude indicator in place of the existing rate-of-
turn indicator. If the existing rate-of-turn indicator is interfaced with the autopilot, it cannot
be replaced by a G5. The G5 can only be installed in the locations specified in this STC. It is
the installer’s responsibility to ensure the installation limitations are considered prior to
modifying the aircraft.
NOTE
Throughout this document the term “rate-of-turn indicator” will be used and could be speaking
to either a turn coordinator or turn and bank indicator. Typically these instruments are used to
cross-check the attitude indicator and directional gyro for bank information. However, these
instruments only provide information that the aircraft is in a turn and whether the turn is at the
standard rate (a standard rate turn is 3 degrees per second, or 2 minutes for a full 360-degree
circle). They do not provide information on the bank angle. Regardless of the specific
instrument installed the G5 is capable of replacing either configuration of a turn coordinator or
turn and bank indicator.
The software versions and information in this document are subject to change without notice.
Visit www.Garmin.com and navigate to the Aviation Product/General Aviation/Indicators/G5
page for current updates and supplemental information concerning operation of the G5 attitude
indicator.
1.2 Acronyms and Abbreviations
The following acronymsand abbreviations are used in this manual:
AFMS
Airplane Flight Manual Supplement
HSI
Horizontal Situation Indicator
ALT
Altitude (mode)
ICA
Instructions for Continued Airworthiness
AML
Approved Model List
I/O
Input/Output
CAN
Controller Area Network
LRU
Line Replaceable Unit
DG
Directional Gyro
STC
Supplemental Type Certificate

Garmin G5 Electronic Flight Instrument Part 23 AML STC Installation Manual 190-01112-10
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CFR
Code of Federal Regulations
TSO
Technical Standard Order
FAA
Federal Aviation Administration
WAAS
Wide Area Augmentation System
GPS
Global Positioning System
1.3 Reference Documents
Table 1-1: Reference Documents
Title
Document Number
FAA Advisory Circular, Acceptable Methods, Techniques, and Practices
–Aircraft Inspection and Repair
AC 43.13-1B
FAA Advisory Circular, Acceptable Methods, Techniques, and Practices
–Aircraft Alterations
AC 43.13-2B
Aerospace Systems Electrical Bonding and Grounding for
Electromagnetic Compatibility and Safety
SAE ARP1870
Standard Guide for Aircraft Electrical Load and Power Source Capacity Analysis
ASTM F 2490-05
GTN 6XX/7XX Install Manual
190-01007-A3
GNS 400W Series Installation Manual
190-00356-08
GNS 500W Series Installation Manual
190-00357-08
Garmin GPS and XM®Antenna STC Installation Manual
190-01284-00
Garmin G5 Electronic Flight Instrument Part 23 AML STC Maintenance Manual
including Instructions for Continued Airworthiness
190-01112-11
Pilots Guide, Garmin G5 Electronic Flight Instrument, Part 23 AML STC
190-01112-12
Airplane Flight Manual Supplement Garmin G5 Electronic Flight Instrument Part
23 AML STC
190-01112-13
1.4 STC Permission
A permission letter to use this STC data is available for download for each authorized G5
installation. The STC Installation Kit contains instructions for downloading the STC permission
letter from www.Garmin.com. Contact a local Garmin Dealer for G5 Attitude, G5 DG and G5
HSI STC Kit Part Numbers.
1.5 Scope
This manual applies to the modification of an aircraft listed on the Part 23 AML STC
SA01818WI for the installation of equipment listed below. Only the interfaces between the
Garmin G5 Electronic Flight Instrument and equipment listed in this manual are approved by the
STC.

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Table 1-2 G5 Attitude and G5 DG/HSI Equipment
Model
Nomenclature
Unit P/N
Catalog P/N
Software P/N
and Version
G5
Electronic Flight Instrument
011-03809-00
010-01485-00
006-B2304-XX*
G5
Installation Kit
011-03892-00
010-12493-10
N/A
G5
Battery pack
011-03893-00
010-12493-00
N/A
GMU 11
Magnetometer
011-04349-01
010-01788-01
006-B2770-XX*
GMU 11
GMU 11 Installation Kit
011-04349-90
010-12598-00
N/A
GAD 29
Data Bus Converter
011-03236-01
010-01172-01
006-B1760-XX*
GAD 29B**
Data Bus Converter
011-03236-11
010-01172-10
006-B1760-XX*
GAD 29/29B
GAD 29/29B Connector Kit
011-03271-00
N/A
N/A
* The approved G5 Part 23 AML STC Electronic Flight Instrument software is P/N 006-B2304-XX. XX
denotes the specific version P/N, i.e. 006-B2304-02 is software version 2.60. The G5 Electronic
Instrument, GMU 11 Magnetometer and GAD 29/29B listed above is shipped with approved software. To
verify the latest approved software visit www.Garmin.com and navigate to the Aviation /General
Aviation/Flight Instruments & Indicators/G5 page. Select ‘Software” in the overview tab.
** The GAD 29B is only required in installations that utilize the G5 heading and course output to a third party
autopilot.
1.6 System Overview
1.6.1 G5 Attitude Indicator
The G5 Electronic Flight Instrument configured as an attitude indicator, is shown in Figure 1-1
. The G5 is an electronic instrument display operating as a standalone flight display. It features
a bright, sunlight readable, 3.5-inch color display which is sized to fit in a standard 3-1/8-inch
instrument cutout. The G5 contains integrated attitude/air data sensors that provide display of
attitude and secondary display of air data information. The G5 has battery backup and in the
case of aircraft power loss will sustain G5 operation with up to 4 hours of emergency power.
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Garmin G5 Electronic Flight Instrument Part 23 AML STC Installation Manual 190-01112-10
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Figure 1-1, G5 Electronic Flight Instrument (Attitude)
1.6.1.1 Attitude
The G5 calculates aircraft attitude using information from its built-in inertial sensors. If the G5
senses that the attitude solution is valid, but not yet within the internal accuracy limits,
"ALIGNING" is displayed. The G5 can align itself both while taxiing and during level flight.
The G5 attitude functions are shown below:
•Pitch
•Roll
1.6.1.2 Turn Rate
The Turn Rate Indicator is located at the bottom of the display. A magenta Turn Rate Trend
Vector shows the current turn rate. A standard-rate turn (3 deg/sec) is shown on the indicator by
the trend vector stopping at the standard turn rate tick mark.
1.6.1.3 Slip/skid
The Attitude Indicator displays slip/skid information as indicated by the location of the ball at the
lower center portion of the indicator.
1.6.1.4 GPS Aiding
The G5 requires GPS for attitude aiding. It contains an internal GPS receiver that can be
connected to an external antenna or optionally can use external GPS input if available.
As installed in this STC, the G5 receives the GPS position for aiding via the following
methods:
•Previously installed and approved GPS antenna (See Section 3.4.1)
•GTN 6XX/7XX series navigators (See section 1.6.1.11)
•GNS 4XX(W)/5XX(W) series navigators (See section 1.6.1.11)
•GNS 480 series navigator (See section 1.6.1.11)
•GTX 3x5 w/GPS transponder with software version 2.10 or later. (See section 1.6.1.11)

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Additionally, the G5 functions provided by the GPS are shown below:
•Ground Track
•Ground Speed (GS)
1.6.1.5 Air Data
The G5 unit is connected to the aircraft Pitot / Static system. See section 4.1.2.4 for details.
The G5 functions provided by the air data are shown below:
•Secondary Airspeed indicator
•Secondary Barometric altimeter
•Secondary Vertical speed
•Secondary Altimeter Barometric Setting
•Secondary Altimeter
•Secondary Altitude Display
•Selected altitude setting, bug and visual altitude alerting
•Secondary Vertical Speed Indicator
•Vspeed references
1.6.1.6 Standby Battery
The standby battery is required. The G5 has an externally mounted lithium –ion battery that
sustains the G5 flight display with up to 4 hours of emergency power.
Figure 1-2 G5 Standby Battery
1.6.1.7 G5 Attitude Interfaced to GMU 11
The GMU 11 magnetometer can be installed as an optional interface for a standalone G5
attitude display. This will allow the display of heading on the attitude display in place of track,
but would not allow the removal of the existing DG.

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1.6.1.8 G5 Attitude Interface Summary
The G5 Electronic Flight Instrument when configured as an attitude indicator in this STC
installation uses 14VDC or 28 VDC power, ground, RS-232, CAN BUS and coax(1) connection
for external mounted GPS antennas. The following list is a summary of interfaces used by the
G5 Attitude indicator.
•Aircraft Power and Ground
•Aircraft Pitot/Static
•GPS Coax connection (1)
•One RS-232 connection
•One CAN Bus connection
•Standby battery
(1) Used only in installations utilizing an external GPS antenna for GPS input to the G5.
1.6.1.9 G5 Attitude Power and Ground Interface Summary
The G5 uses 14VDC or 28 VDC power and aircraft ground. Reference Section 5 for wiring
details.
1.6.1.10 G5 Attitude Pitot/Static Interface Summary
The G5 requires pitot and static inputs for the altitude and airspeed functions. Reference
Section 4.1.4 for installation specifics.
1.6.1.11 G5 Attitude RS-232Interface Summary
The G5 Attitude indicator can utilize RS-232 connections when available to receive GPS data.
When a G5 HSI is installed, the G5 Attitude indicator can utilize the RS-232 connection for
GPS and VHF navigation information.
If an existing connection is made to the RS-232 port, the G5 connection can be spliced into
the existing wiring at the connector. For specific wiring information refer to Section 5.
For specific configuration settings for RS-232 refer to Section 5.

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1.6.1.12 G5 Attitude CAN BUSInterface Summary
The G5 Attitude indicator can utilize CAN BUS connections when specified by a specific
equipment configuration to allow heading information from the GMU 11, communication of
navigation data from the GAD 29/29B and communication between the G5 Attitude indicator
and the G5 HSI.
For specific wiring information refer to Section 5.
1.6.2 G5 DG/HSI Indicator
The G5 Electronic Flight Instrument configured as an HSI, is shown in Figure 1-3. The G5 is
an electronic instrument display operating as a standalone flight display. It features a bright,
sunlight readable, 3.5-inch color display which is sized to fit in a standard 3-1/8-inch
instrument cutout. The G5 contains integrated attitude/air data sensors that provide a backup
display of attitude and air data information. The G5 has battery backup and in the case of
aircraft power loss will sustain G5 operation with up to 4 hours of emergency power. When the
G5 is installed as a DG/HSI the battery backup is optional.
Figure 1-3 G5 Electronic Flight Instrument (DG/HSI)
The Garmin G5 indicator can replace an existing vacuum-driven or electro mechanical
DG/HSI. In this location the G5’s primary function is the display of slaved compass, #1 VHF
NAV and/or #1 GPS NAV. The possible configurations for a G5 DG/HSI are discussed below.
(Note: The VHF navigators and GPS navigators interfaced by this STC are not installed by this
AML STC. Only the interface of the VHF NAV, GPS NAV and G5 Attitude and G5 DG/HSI
are approved with this STC.)
1.6.2.1 G5 Slaved DG
The basic installation is a G5 in the DG indicator location and a GMU 11.
•In this configuration the G5 is installed as a slaved compass with no NAV information.
•The G5 DG can be used as a backup Attitude/Airspeed/Altitude Indicator.

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1.6.2.2 G5 HSI VHF NAV
For installations where the G5 HSI is being used for basic VHF NAV, the G5 HSI is installed
with a GNC255 or SL30.
•The G5 HSI will be a situationally correct display of VHF NAV course information
with the heading of the aircraft
•The G5 HSI will be used to input OBS/Course information
•The G5 HSI can be used as a backup Attitude/Airspeed/Altitude Indicator
•If installed, a G5 Attitude indicator can also present VHF NAV lateral and vertical
deviation
1.6.2.3 G5 HSI GPS NAV
For installations where the G5 HSI is being used for GPS NAV, the G5 will be installed with a
Garmin GPS navigator and the GAD 29/29B
•The G5 HSI will be a situationally correct display of GPS NAV information with the
heading of the aircraft
•The G5 HSI will be used to input OBS/Course information
•The G5 HSI can be used as a backup Attitude/Airspeed/Altitude Indicator
•If installed, a G5 Attitude indicator can also present GPS NAV lateral and vertical
deviation
1.6.2.4 G5 HSI VHF NAV and GPS NAV
For installations where the G5 HSI is being used for full VHF NAV and GPS NAV, the G5 will
be installed with a Garmin GPS/VHF navigator and the GAD 29/29B.
•The G5 HSI will be a situationally correct display of VHF NAV or GPS NAV
information with the heading of the aircraft
•The G5 HSI will be used to input OBS/Course information
•The G5 HSI can be used as a backup Attitude/Airspeed/Altitude Indicator
•If installed, a G5 Attitude indicator can also present VHF NAV or GPS NAV lateral
and vertical deviation
1.6.2.5 Backup Attitude Indicator
All of the functions listed in 1.6.1 are also available by selecting the G5 HSI Menu via the
knob and selecting PFD.
1.6.2.6 G5 DG/HSI Interface Summary
•Aircraft Power and Ground
•Aircraft Pitot/Static
•GPS Coax connection (1)
•One RS-232 connection
•One CAN Bus connection
•Standby battery (optional)
(1) Used only in installations utilizing an external GPS antenna for GPS input to the G5.

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1.6.2.7 G5 DG/HSI Power and Ground Interface Summary
The G5 uses 14VDC or 28 VDC power and aircraft ground. Reference Section 5 for wiring
details.
1.6.2.8 G5 DG/HSI Pitot/Static Interface Summary
The G5 requires pitot and static inputs for the backup altitude and airspeed functions.
Reference Section 4.1.4.
1.6.2.9 G5 DG/HSI RS-232Interface Summary
The G5 DG/HSI can utilize RS-232 connections when available to receive
•GPS data for aiding.
•VHF navigation information, both lateral and vertical.
For specific configuration settings for RS-232 refer to Section 5.
If an existing connection is made to the RS-232 port, the G5 connection can be spliced into
the existing wiring at the connector. For specific wiring information refer to Section 5.
1.6.2.10 G5 DG/HSI CAN BUS Interface Summary
The G5 DG/HSI can utilize CAN BUS connections when specified by a specific equipment
configuration to allow heading information from the GMU 11, communication of navigation
data from the GAD 29/29B and communication between the G5 Attitude instrument and the
G5 HSI.
For specific wiring information refer to Section 5.
1.6.2.11 Standby Battery
The standby battery is optional for the DG/HSI installation. The G5 has an externally mounted
lithium –ion battery that sustains the G5 flight display with up to 4 hours of emergency power.
1.6.3 GMU 11 Magnetometer
The Garmin GMU 11 Magnetometer is a remote mounted device that interfaces with a Garmin
G5 to provide heading data to the G5 Attitude and/or G5 DG/HSI. The Garmin G5 and GMU
11 magnetometer replaces traditional rotating mass instruments. The GMU 11 Magnetometer
uses magnetic field measurements to create electronically stabilized heading data. The GMU
11 is required when a G5 is installed as a DG/HSI.
Figure 1-4 GMU 11