Garmin Approach G5 - GPS-Enabled Golf Handheld User manual

190-01112-10 December 2019 Revision 21
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. 21
Page 2
©2016 - 2019 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
and to print one copy of this manual or of any revision hereto, provided such electronic or printed copy
of this manual or revision must contain the complete text of this copyright notice and provided further
any unauthorized commercial distribution of this manual or any revision hereto is strictly prohibited.
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trademark of Garmin International or its subsidiaries. These trademarks may not be used without the
express permission of Garmin.
Garmin International, Inc
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Telephone:[phone]
Technical Support and Field Service Engineers: 888.606.5482
www.flyGarmin.com
Garmin (Europe) Ltd.
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Telephone: [phone]
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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. 21
Page 3
RECORD OF REVISIONS
Revision
Revision Date
Description
1
07-14-2016
InitialRelease
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.
10
11/02/2017
Corrected Cessna Third Party autopilot model coverage and minor
wiring typographical fixes.
11
12/04/2017
Changed the configuration sections to match the changes from SW
5.00 and minor typographical fixes.
12
02/27/2018
Updated Section 5 to add two single ADI interconnects and related
configurations. Removed wiring interface to GFC600 and minor
typographical fixes. Updated document to reflect G5 software
version 5.20 updates. Added Section 4.2.2 for glare shield GPS ant.
13
03/06/2018
Removed the installation of the glare shield GPS antenna
14
07/06/2018
Updated configuration items for VNAV functionality and other
miscellaneous corrections.
15
03/13/2019
Updated configuration items for GNS/GTN ARINC 429 interface and
other miscellaneous corrections.
16
03/14/2019
Corrected TNC/BNC connector P/N in Table 1-2.
17
04/04/2019
Added Carlisle IT contact information, and updated CAN wire P/N.
18
04/12/2019
Added optional use of M27500 wire for CAN bus connections and
other minor clerical updates.
19
07/18/2019
Added dual nav interface, GAD 13 (OAT), 2”navigators (GPS 175,
GNX 375). Various typographical errors corrected.
20
08/20/2019
Added Piper Altimatic IIIC Autopilot to approved interfaces. Various
typographical errors corrected.
21
12/12/2019
Added GNC 355, Density Altitude annunciator. Various typographical
errors corrected.

Garmin G5 Electronic Flight Instrument Part 23 AML STC Installation Manual 190-01112-10
Rev. 21
Page 4
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 beexported, released, or disclosed to foreign nationals inside or outsideof 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
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.
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
Rev. 21
Page 5
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.
The G5 has an operating temperature range of -4˚F to 140˚F (-20˚C to +60˚C). The G5 will
prevent operation from the battery when the battery is outside of this temperature range.
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.
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.

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....................................................................................................................13
1.1 Introduction ....................................................................................................................................13
1.2 Acronyms and Abbreviations.........................................................................................................14
1.3 Reference Documents ...................................................................................................................14
1.4 STC Permission.............................................................................................................................15
1.5 Scope.............................................................................................................................................15
1.6 System Overview...........................................................................................................................16
1.7 Technical Specifications.................................................................................................................25
2LIMITATIONS ........................................................................................................................................26
2.1 Installation Limitations....................................................................................................................26
2.2 OperationalLimitations...................................................................................................................26
3INSTALLATION OVERVIEW.................................................................................................................27
3.1 Introduction ....................................................................................................................................27
3.2 Installation Materials.......................................................................................................................27
3.3 Test Equipment..............................................................................................................................30
3.4 Installation Considerations.............................................................................................................30
4INSTALLATION PROCEDURES...........................................................................................................43
4.1 Mechanical Installation...................................................................................................................43
4.2 Electrical Installation ......................................................................................................................81
4.3 Weight and Balance.......................................................................................................................89
4.4 Electrical Load Analysis.................................................................................................................89
4.5 Electrical Bonding ..........................................................................................................................98
5SYSTEM INTERCONNECTS..............................................................................................................106
5.1 G5 Interconnect Notes.................................................................................................................107
5.2 Power and Ground.......................................................................................................................108
5.3 G5 (ADI) with a GPS Antenna .....................................................................................................109
5.4 G5 (ADI) with GPS Position Input................................................................................................111
5.5 G5 (ADI) and GMU 11 with GPS Position Input ..........................................................................115
5.6 G5 (ADI or DG), GMU 11 and GPS Antenna...............................................................................119
5.7 G5 (HSI) with VHF Navigator.......................................................................................................122
5.8 G5 (HSI) with GPS/VHF Navigator..............................................................................................125
5.9 Dual G5 without Navigator...........................................................................................................131
5.10Dual G5 with VHF Navigator........................................................................................................134
5.11Dual G5 with GPS/VHF Navigator...............................................................................................138
5.12G5 (ADI) with GPS/VHF Navigator..............................................................................................144
5.13G5 (ADI) with VHF Navigator.......................................................................................................150
5.14G5 (HSI) with GPS Navigator ......................................................................................................154
5.15Dual G5 with GPS Navigator .......................................................................................................157
5.16G5 (ADI) with GPS Navigator ......................................................................................................161
5.17G5 (HSI) with Two-Inch GPS Navigator.......................................................................................164
5.18Dual G5 with Two-Inch GPS Navigator........................................................................................168

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5.19G5 (ADI) with Two-Inch GPS Navigator.......................................................................................173
5.20G5 Portable Avionics Unit Interface.............................................................................................177
5.21GAD 13 Interface .........................................................................................................................180
5.22GAD 29B Interface to Garmin Autopilots.....................................................................................181
5.23GAD 29B Interface to Non-Garmin Autopilots.............................................................................182
6SYSTEM CONFIGURATION AND CHECKOUT PROCEDURES......................................................194
6.1 Overview......................................................................................................................................194
6.2 Mounting, Wiring, and Power Checks..........................................................................................194
6.3 Post-Installation Checkout Procedures........................................................................................194
6.4 Documentation Checks................................................................................................................217
FIGURES
FIGURE PAGE
Figure 1-1, G5 Electronic Flight Instrument (Attitude) ................................................................................16
Figure 1-2 G5 Standby Battery...................................................................................................................18
Figure 1-3 G5 Electronic Flight Instrument (DG/HSI).................................................................................19
Figure 1-4 GMU 11 .....................................................................................................................................22
Figure 1-5 GAD 29/29B...............................................................................................................................22
Figure 1-6 –Glare Shield Mounted GPS Antenna......................................................................................23
Figure 1-7 –GAD 13...................................................................................................................................23
Figure 1-8 –GTP 59 (Temperature Probe).................................................................................................24
Figure 3-1 CAN Bus Backbone...................................................................................................................33
Figure 3-2 Correct CAN Bus Wiring Example and Node Connections.......................................................33
Figure 3-3 Incorrect CAN Wiring Example..................................................................................................34
Figure 3-4 CAN Bus Termination (011-02887-00) for G5, GMU 11, and GAD 13 .....................................34
Figure 3-5 CAN Bus Termination for GAD 29/29B.....................................................................................35
Figure 3-6 CAN Bus Termination for G5 on M27500 Wire.........................................................................35
Figure 3-7 GAD 29B Inline Transformer Mounting Instructions..................................................................37
Figure 3-8 G5 Diode and Resistor Method A Buildup.................................................................................38
Figure 3-9 Method A Placement of G5 CAN Bus Resistors .......................................................................39
Figure 3-10 Method B G5 Resistor Preparation..........................................................................................40
Figure 3-11 Method B Placement of CAN Bus Components......................................................................41
Figure 3-12 Wire P/N M27500 Simplified Resistor connections.................................................................41
Figure 3-13 Placement of G5 Power Diode (Bothe Wire Types)................................................................42
Figure 4-1 Typical G5 Installations for IFR Approved Aircraft ...................................................................44
Figure 4-2 G5 Mounting Ring.....................................................................................................................45
Figure 4-3 Maximum Misalignment of the G5 in the Lateral Axis..............................................................45
Figure 4-4 Maximum Misalignment of the G5 in the Longitudinal Axis......................................................46

Garmin G5 Electronic Flight Instrument Part 23 AML STC Installation Manual 190-01112-10
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Figure 4-5 Maximum Misalignment of the G5 in the Vertical Axis.............................................................46
Figure 4-6 G5 Alignment Pin.......................................................................................................................47
Figure 4-7 G5 Hex Driver Insertion.............................................................................................................47
Figure 4-8 G5 Captive Mounting Screw Replacement ...............................................................................48
Figure 4-9 Required Vertical Spacing Between G5 Units...........................................................................49
Figure 4-10 Instrument Panel Modification.................................................................................................49
Figure 4-11 G5 Adapter Plate.....................................................................................................................50
Figure 4-12 G5 Adapter Plate Assembly ....................................................................................................50
Figure 4-13, G5 Instrument Hole Dimensions.............................................................................................51
Figure 4-14, Clearance for Connections.....................................................................................................52
Figure 4-15 Recessed Adapter Plate..........................................................................................................52
Figure 4-16 Recessed Adapter Plate Template Reference Holes..............................................................53
Figure 4-17 Single G5 Recessed Adapter Plate Installation.......................................................................54
Figure 4-18 Single G5 Recessed Installation..............................................................................................54
Figure 4-19 Dual Vertical G5 Recessed Adapter Plate Installation............................................................55
Figure 4-20 Dual Vertical G5 Recessed Installation...................................................................................55
Figure 4-21 Dual Horizontal G5 Recessed Installation..............................................................................56
Figure 4-22, Instrument Panel Limitations..................................................................................................57
Figure 4-23 Instrument Panel - View Looking Forward ..............................................................................58
Figure 4-24 Instrument Panel - View with Instruments Removed...............................................................58
Figure 4-25 Recessed Adapter Plate Located on Panel.............................................................................59
Figure 4-26 Match Drilling Through Panel - Using Adapter Plate as Template..........................................59
Figure 4-27 Preliminary Trimming of Adapter Plate....................................................................................60
Figure 4-28 Adapter Plate Located on Far Side of Instrument Panel.........................................................60
Figure 4-29 Additional Trimming of Adapter Plate Required......................................................................61
Figure 4-30 Trimmed Adapter Plate............................................................................................................61
Figure 4-31 Adapter Plate Mounting Holes.................................................................................................62
Figure 4-32 Dual G5 Panel Cutout - Using Match Drilled Holes for Reference..........................................62
Figure 4-33 Instrument Panel After Cutout for Dual Vertical G5 Units .......................................................63
Figure 4-34 Adapter Plate Installed ............................................................................................................63
Figure 4-35 Dual Vertical G5 Units Installed...............................................................................................64
Figure 4-36 G5 Flush Mount Adapter Plate Printable Template.................................................................65
Figure 4-37 GMU 11 Pitch and Roll Requirements ....................................................................................67
Figure 4-38 GMU 11 Heading Alignment Requirements............................................................................68
Figure 4-39 GMU 11 Mounting Hardware...................................................................................................69
Figure 4-40 GAD 29/29B Mounting Hardware............................................................................................71
Figure 4-41 GAD 13 Mounting Hardware ...................................................................................................72

Garmin G5 Electronic Flight Instrument Part 23 AML STC Installation Manual 190-01112-10
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Figure 4-42 –Glare Shield Mounted GPS Antenna Dimensions................................................................74
Figure 4-43 –Glare Shield Mounted GPS Antenna (Screw-mounted Installation Example) .....................75
Figure 4-44 –Glare Shield Mounted GPS Antenna (Hook & Loop Installation Example)..........................76
Figure 4-45 –GTP 59 OAT Probe Dimensions ..........................................................................................77
Figure 4-46 –GTP 59 Mounting (Aircraft with Metallic Skin Example).......................................................78
Figure 4-47 –GTP 59 Mounting - Composite Aircraft (Non-conductive Access Panel).............................79
Figure 4-48 –GTP 59 Mounting - Composite Aircraft (Conductive Access Panel)....................................80
Figure 4-49 Wiring Harness Connector Assembly......................................................................................86
Figure 4-50 Shield Termination Methods....................................................................................................87
Figure 4-51 Ammeter Placement for Current Measurements.....................................................................92
Figure 4-52 Blank Electrical Load Tabulation Form, Sheet 1 of 2..............................................................94
Figure 4-53 Blank Electrical Load Tabulation Form, Sheet 2 of 2..............................................................95
Figure 4-54 Sample Completed Electrical Load Tabulation Form, Sheet 1 of 2 ........................................96
Figure 4-55 Sample Completed Electrical Load Tabulation Form, Sheet 2 of 2 ........................................97
Figure 4-56 –Nut and Washer Electrical Bonding......................................................................................98
Figure 4-57 –Nut Plate Electrical Bonding.................................................................................................98
Figure 4-58 Fiberglass Insulation for Carbon Fiber Material ....................................................................100
Figure 4-59 Aluminum Tape Joint.............................................................................................................100
Figure 4-60 Aluminum Tape Ground Termination....................................................................................101
Figure 4-61 GAD 29/29B Aluminum Tape Installation (GAD 13 similar)..................................................102
Figure 4-62 #10 Terminal Installation on Garmin Backshell....................................................................104
Figure 4-63 - Pan Head Screw Ground Stud Buildup...............................................................................105
Figure 5-1 G5 Interconnect Notes.............................................................................................................107
Figure 5-2 Power and Ground ..................................................................................................................108
Figure 5-3 G5 (ADI) with a GPS Antenna.................................................................................................109
Figure 5-4 G5 (ADI) with GPS Position Input............................................................................................111
Figure 5-5 G5 (ADI) and GMU 11 with GPS Position Input......................................................................115
Figure 5-6 G5 (ADI or DG), GMU 11 and GPS Antenna..........................................................................119
Figure 5-7 G5 (HSI) with VHF Navigator..................................................................................................122
Figure 5-8 G5 (HSI) with GPS/VHF Navigator..........................................................................................125
Figure 5-9 G5 (HSI) with GPS/VHF Navigator Notes...............................................................................126
Figure 5-10 Dual G5 without Navigator.....................................................................................................131
Figure 5-11 Dual G5 with VHF Navigator .................................................................................................134
Figure 5-12 Dual G5 with GPS/VHF Navigator.........................................................................................138
Figure 5-13 Dual G5 with GPS/VHF Navigator Notes..............................................................................139
Figure 5-14 G5(ADI) with GPS/VHF Navigator.........................................................................................144
Figure 5-15 G5 (ADI) with GPS/VHF Navigator Notes.............................................................................145

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Figure 5-16 G5 (ADI) with VHF Navigator ................................................................................................150
Figure 5-17 G5 (HSI) with GPS Navigator................................................................................................154
Figure 5-18 Dual G5 with GPS Navigator.................................................................................................157
Figure 5-19 G5 (ADI) with GPS Navigator................................................................................................161
Figure 5-20 G5 (HSI) with GPS Navigator................................................................................................164
Figure 5-21 Dual G5 with Two-Inch GPS Navigator.................................................................................168
Figure 5-22 Dual G5 with Two-Inch GPS Navigator Notes.......................................................................169
Figure 5-23 G5 (ADI) with Two-Inch GPS Navigator................................................................................173
Figure 5-24 G5 (ADI) with Two-Inch GPS Navigator Notes......................................................................174
Figure 5-25 G5 Portable Avionics Unit Interface ......................................................................................177
Figure 5-26 GAD 13 Interface...................................................................................................................180
Figure 5-27 GAD 29B Interface to Century Autopilots, Sheet 1 of 2........................................................183
Figure 5-28 GAD 29B Interface to Century Autopilots, Sheet 2 of 2........................................................184
Figure 5-29 GAD 29B Interface to Cessna Autopilots, Sheet 1 of 2.........................................................186
Figure 5-30 GAD 29B Interface to Cessna Autopilots, Sheet 2 of 2.........................................................187
Figure 5-31 GAD 29B Interface to Honeywell Autopilots..........................................................................188
Figure 5-32 GAD 29B Interface to S-TEC Autopilots................................................................................190
Figure 5-33 GAD 29B Interface To Piper Autopilots.................................................................................192
Figure 6-1, Attitude Calibration Example..................................................................................................200
Figure 6-2, Example of Calibration Equations..........................................................................................200
Figure 6-3 Engine Vibration Test Failure Indication..................................................................................202
Figure 6-4 ADI display of OAT and TAS (typical values shown)..............................................................212
Figure 6-5 HSI Display of Crosswind (Typical Values Shown).................................................................213
Figure 6-6 Example EMC Source/Victim Matrix........................................................................................214
Figure 6-7 J51 on the G5..........................................................................................................................219
Figure 6-8 J111 on the GMU 11 ...............................................................................................................220
Figure 6-9 J291 on the GAD 29/29B.........................................................................................................222
Figure 6-10 J292 on the GAD 29/29B.......................................................................................................222
Figure 6-11 J131 on the GAD 13..............................................................................................................224
Figure 6-12 GTP 59 ..................................................................................................................................225
Figure 6-13 G5 Outline Drawing...............................................................................................................226
Figure 6-14 G5 Installation Drawing .........................................................................................................227
Figure 6-15 G5 Panel Cutout Measurements (Not to Scale)....................................................................228
Figure 6-16 GAD 29/29B Outline Drawing................................................................................................229
Figure 6-17 GAD 29/29B Install Breakdown.............................................................................................230
Figure 6-18 GMU 11 Outline Drawing.......................................................................................................231
Figure 6-19 GMU 11 Install Breakdown....................................................................................................232

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Figure 6-20 GAD 13 Outline Drawing.......................................................................................................233
Figure 6-21 GAD 13 Install Breakdown ....................................................................................................234
Figure 6-22 GTP 59 Outline Drawing........................................................................................................235
Figure 6-23 GTP 59 Install Breakdown.....................................................................................................236
Figure 6-24 Magnetic Interference Test Harness.....................................................................................238
Figure 6-25 GMU 11 Overbraid Installation..............................................................................................242
Figure 6-26 GMU 11 Overbraid Termination ............................................................................................243
Figure 6-27 Zoning for Wingtips on Aircraft Not Limited to VFR Operation..............................................268
Figure 6-28 Zoning for Wingtips on Aircraft Limited to VFR Operations ..................................................270
Figure 6-29 Zoning for Wings Affected by Landing Gear .........................................................................271
Figure 6-30 Zoning for a Single Propeller (Low- or High-Wing)................................................................272
Figure 6-31 Zoning for a Low- or High-Wing Canard with a Rear-Mounted Propeller..............................273
Figure 6-32 Zoning for a Low- or High-Wing Aircraft with a Curved Lower Fuselage..............................274
Figure 6-33 Zoning for a Single, Rear-Mounted Prop above Fuselage....................................................275
Figure 6-34 Zoning for Front-Mounted Twin Propellers (Low- or High-Wing) ..........................................276
Figure 6-35 Zoning for Rear-Mounted Twin Propellers (Low- or High-Wing)...........................................277
Figure 6-36 Zoning for Front- and Rear-Mounted Propellers (Low- or High-Wing)..................................278
Figure 6-37 Zoning for High-Wing with Front and Rear Propellers Mounted Above Fuselage................279
Figure 6-38 Zoning for Low or High Wing Canard with Twin Rear-Facing Props.....................................280
Figure 6-39 Zoning for Single-Propeller Biplane.......................................................................................281
Figure 6-40 Zoning for Empennage..........................................................................................................282
Figure 6-41 V-tail Empennage Zoning......................................................................................................283
Figure 6-42 Dual Vertical Stabilizer With Low Horizontal Stabilizer Zoning.............................................283
Figure 6-43 Example Lightning Zoning for Single-Engine Aircraft............................................................284
Figure 6-44 Example Lightning Zoning for Twin-Engine Aircraft..............................................................285

Garmin G5 Electronic Flight Instrument Part 23 AML STC Installation Manual 190-01112-10
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TABLES
TABLE PAGE
Table 1-1: Reference Documents...............................................................................................................14
Table 1-2 G5 Attitude and G5 DG/HSI Equipment.....................................................................................15
Table 1-3: Physical Characteristics.............................................................................................................25
Table 1-4: Power Requirements.................................................................................................................25
Table 3-1: Contents of the G5 Installation Kit (011-03892-00)...................................................................27
Table 3-2: Contents of the GMU 11 Installation Kit (011-04349-90) ..........................................................27
Table 3-3: Contents of the G5, GMU 11, and GAD 13 Connector Kits (011-03002-00/10) .......................28
Table 3-4: Contents of the GAD 29/29B Connector Kit (011-03271-00)....................................................28
Table 3-5: G5 Adapter Plate .......................................................................................................................28
Table 3-6: G5 Recessed Adapter Plate......................................................................................................28
Table 3-7: G5 and Supporting LRU Circuit Breaker Labels........................................................................32
Table 4-1 GMU 11 Supporting Hardware ...................................................................................................67
Table 4-2 GAD 29/29B, GAD 13 Supporting Hardware..............................................................................70
Table 4-3: Contact Crimp Tooling...............................................................................................................81
Table 4-4: G5 (1P51, 2P51), GMU 11 (P111), and GAD 13 (P131) Connector Parts................................83
Table 4-5: GAD 29/29B 9-pin (P291) Connector Parts...............................................................................84
Table 4-6: GAD 29/29B 25-pin (P292) Connector Parts.............................................................................85
Table 4-7: LRU Weights..............................................................................................................................89
Table 4-8: Sample Net Electrical Load Change Calculation.......................................................................90
Table 4-9: Bonding Strap Potential Part Numbers....................................................................................102
Table 5-1: Non-Garmin Autopilots ............................................................................................................182
Table 6-1: Post-Installation Calibration Procedure Summary...................................................................198
Table 6-2: Heading Verification.................................................................................................................205
Table 6-3: Aircraft Model-Specific Data....................................................................................................245
Table 6-4: Lightning Zoning Legend.........................................................................................................267
APPENDICES
APPENDIX PAGE
- CONNECTOR INFORMATION........................................................................................219
- OUTLINE AND INSTALLATION DRAWINGS .................................................................226
- MAGNETIC INTERFERENCE SURVEY.........................................................................237
- GMU 11 MOUNTING IN NONMETALLIC WINGTIP.......................................................241
- MODEL SPECIFIC DATA................................................................................................244
- LIGHTNING PROTECTION.............................................................................................267

Garmin G5 Electronic Flight Instrument Part 23 AML STC Installation Manual 190-01112-10
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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 serve as an attitude indicator or rate-of-turn
indicator. The G5 can also serve as a DG or HSI, either standalone or in combination with a G5 attitude
display.
When installed as a DG/HSI with a GAD 29/29B, the G5 can interface with a Garmin GFC 500, Garmin
GFC 600 and Non-Garmin 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.

Garmin G5 Electronic Flight Instrument Part 23 AML STC Installation Manual 190-01112-10
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1.2 Acronyms and Abbreviations
The following acronyms and 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
OAT
Outside Air Temperature
CFR
Code of Federal Regulations
STC
Supplemental Type Certificate
FAA
Federal Aviation Administration
TSO
Technical Standard Order
FIKI
Flight Into Known Icing
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 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
GFC 600 Automatic Flight Control System Part 23 AML STC Installation Manual
190-01937-00
GFC 500 Autopilot with Electronic Stability and Protection Part 23 AML STC
Installation Manual
190-02291-00
GPS 175 Part 23 AML STC Installation Manual
190-02207-A1
GNX 375 Part 23 AML STC Installation Manual
190-02207-A4
GNS 400 Series Installation Manual
190-00140-02
GNS 500 Series Installation Manual
190-00181-02

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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 forthe
installationofequipment listed below. Only the interfaces between the Garmin G5 Electronic Flight
Instrument and equipment listed in this manual are approved by the STC.
Table 1-2 G5 Attitude and G5 DG/HSI Equipment
Model
Nomenclature
Unit P/N
Mod
Status
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
--
010-01788-01
N/A
GAD 29
Data Bus Converter
011-03236-01
--
010-01172-01
006-B1760-XX*
GAD 29B**
Data Bus Converter
011-03236-11
--
010-01172-11
006-B1760-XX*
GAD 29/29B
GAD 29/29B Connector Kit
011-03271-00
--
N/A
N/A
GPS Antenna,
TNC
Glareshield mount GPS
antenna
011-04036-00
--
010-12444-00
N/A
TNC/BNC Adapter
Coax adapter for
glareshield antenna
330-01754-00
--
--
N/A
GAD 13
Unit Only
011-04938-00
--
010-02203-00
N/A
GAD 13
Connector Kit
011-03002-10
--
N/A
N/A
GTP 59
OAT Probe Installation Kit
494-00022-08
--
011-00978-00
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 Flight
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 an autopilot,
or interface with a Garmin navigator.

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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.
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.

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1.6.1.4 GPS Aiding
The G5 requires GPS for attitude aiding. It contains an internal GPS receiver that can be connected to a
GPS 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:
•GTN 6XX/7XX series navigators (See section 1.6.1.11)
•GNS 4XX/5XX with WAAS 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)
•Connection to the Glare Shield Mounted GPS Antenna (See section 1.6.5)
•GPS 175/GNX 375 series navigators (See section 1.6.1.11)
Note: It is possible to connect to both a Glare Shield Mounted GPS Antenna via a coaxial cable and a
GPS navigator over RS-232 simultaneously.
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 and optionally connected to the GAD 13 for
Outside Air Temperature (OAT) information. 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
•True Airspeed (TAS)
•Crosswind speed and direction
•OAT
The G5 is capable of sharing OAT information with navigators and transponders over the CAN bus,
which is converted to ARINC 429 at the GAD 29/29B.

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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.
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 connection for the Glare Shield
Mounted GPS Antenna. The following list is a summary of interfaces used by the G5 Attitude indicator.
•Aircraft Power and Ground
•Aircraft Pitot/Static
•GPS Coax connection
•One RS-232 connection
•One CAN bus connection
•Standby battery
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 4.1.5
for installation specifics.

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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.
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, communication between the G5 Attitude indicator and the G5 HSI, and
communication of Outside Air Temperature (OAT) information from the GAD 13.
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)

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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, VHF NAV and/or GPS NAV, system
#1 or #2. 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.
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