Q&A
Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.
Q: I know the STC for the Garmin G5 to be used as a primary HSI has now been approved. Will the G5 co figured for HSI receive glideslope input from a King KX 155 and will the WAAS position source for an Aparreo Stratus work with the G5 for a non-GPS equipped aircraft?
Per Garmin, the G5 will not interface with the KX 155. The G5 has an internal GPS which can be used with an external antenna or can receive GPS data from a GTN or GNS GPS source.
Q: Will the G5 HSI heading bug drive a STEC 50 autopilot in heading mode?
Yes, the STC'd G5 HSI now has the capability to drive an autopilot system. Supported autopilot systems are listed on our web page.
Q: Can this G5 act as primary for Attitude Indicator, Directional Gyro, and Turn Coordinator, HSI and Secondary for airspeed, altitude, vsi?
This G5 is only STC'd as a primary replacement for the directional gyro. It is locked in the DG screen and cannot display any other information.
Q: Our aircraft already has the Dynon D-10A EFIS installed. Is there any problems or loss of capability integrating the G5 DG/HSI into our system? NOTE: we will be connecting our GTN-750 as the GPS source.
We are not aware of any capability issues with these units and their integration.
Q: Will the Garmin G5 DG display Glide Slope from a GNC255A?
Yes, this unit will display glide slope information from a gnc255a.
Q: If I install two G5s, will the heading bugs move together when set by either knob? That is, the one on the G5 AI or the one on the G5 DG.
At this time no, as Garmin does not show the two units tied together in the install manual.
Q: Does the Garmin G5 show glide slope (vertical guidance) from a GTN650 during an approach with vertical guidance?
Per Garmin, yes, the Garmin G5 HSI will display vertical guidance during approach.
Q: What other parts will I need to buy so the Garmin G5 will work as a HSI coupled with a GNS 430 NON WAAS?
Per the G5 installation manual, the G5 DG/HSI will work with the GNS 4xx/5xx with either WAAS or non-WAAS. You will require the use of a GAD29B and GMU11 if you intend to use G5 for VHF navigation.
Q: The comment about the G5 DG/HSI not working with a GNS-430 non-WAAS is a little confusing. Two press releases say it works but you have to have GAD-29B too. Can you clarify this? Thank you.
Per the G5 installation manual, the G5 DG/HSI will work with the GNS 4xx/5xx with either WAAS or non-WAAS. You will require the use of a GAD29B and GMU11 if you intend to use G5 for VHF navigation.
Q: Is there a non certified version of the G5 HSI like there is a non certified version of the G5 ADI/EFIS? The G5 Efis says it has an HSI mode so would that basically be this unit w/o the cert paperwork?
Thanks
KM
The experimental G5 has the ability to switch between the AI/EFIS and HSI page using the control knob on the unit. The STC'd units are locked in either the AI or HSI, respectively.
Q: From maintenance & install manual it is not clear that the G5 DG STCd version will display navigation signals : VOR and ILS (LOC+GS) from a GNC255 unit. Please confirm?
The G5 will display GS and LOC needles when connected to a VHF navigation source such as a GNC 255.
Q: If Im understanding correctly, a G5 and a G5 DG/HSI are pretty similar to, say, an Aspen PFD. Other than maybe backup use, is there any reason I would need to keep my traditional airspeed, altimeter, AI, DG or VSI?
The G5 can only be legally installed as a replacement DG and AI in certified aircraft. The G5 AI and G5 HSI are the only STC'd versions available for the G5 at this time. You will have to keep your traditional airspeed, altimeter, and vsi.
Q: On multiple Q&A it is stated that the Garmin G5 DG/HSI is locked into DG/HSI mode. How then do we utilize it as a backup AI?
PER THE G5 TSO INSTALLATION MANUAL, THE BACKUP AI FUNCTIONS CAN BE ACCESSED BY - 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.
Q: Is the magnetometer included in the Garmin G5 DG / HSI part # 11-15015? If no, what is the reference number for this magnetometer?
Yes The GMU 11 magnetometer is included with the Garmin G5 DG / HSI GAD 29B kit. The GMU 11 can be ordered separately under part number 11-15077.
Q: In one question it is asked if the G5 will display GS/LOC information from a GNC255 and there is no mention of the GAD29B and GMU11. If I would like to install the G5 HSI with a Garmin 430W, will I need the GAD29B or GMU11 to display GS/LOC information when using GPS or NAV radio? I am essentially looking for the functions of a GI-106B while eliminating my vacuum DG. Can two G5s share one GPS source, IE one antenna to drive both G5s and a separate antenna for the 430W?
The G5 HSI can be interfaced with both a GNC 255 and 430W simultaneously with a GAD 29B. The GMU 11 is required to be installed when the G5 is configured as a DG / HSI. The G5 will function as a GI106B DG when connected to a VHF NAV source such as a GNC 255. In a dual G5 installation, a single GPS antenna can be used if the G5's are interfaced together via the can bus. Both units will share the GPS input from a single antenna source.
Q: I have a 530W, KAP140 can a G5 AI/HSI driver the autopilot? What additional information equipment would I need?
Yes, but you would also need the Garmin GAD 29B in order to interface your autopilot system.
Q: There is an option to purchase a 4 foot harness with this Garmin G5 DG / HSI. Is the harness generic or is it specific to what it is intended to be hooked up to? For example, if I ordered the unit with a harness, would it come preconfigured to plug up to a GTN650?
The 4 fot harness is power, ground, andRS-232 line. If ordered with the GMU 11 or GAD 29B, a can-bus wire is also included. If you require a special connection or lead lengths, we recommend ordering the unit with the custom harness so we can build it exactly to your specs.
Q: One question answer says the G5 will drive an S-Tec 50 autopilot. I dont see a left right output from the GAD 29 needed to drive the 50. Will the GAD 29B have the needed output?
The GAD 29B will have the outputs needed for the S-tec 20/30/40/50/55/60-1/60-2/65 as well as other commonly available autopilot systems.
Q: Does the Garmin G5 as an HSI display VOR needle bearing information (like an RMI),and does it display Flight Director bar information? The Aspen I have does both.
Per Garmin: The CDI is capable of displaying two sources of navigation: GPS or NAV (VOR, localizer).
Q: The title of the ad says the unit is a DG/HSI - STCs for certified aircraft. However, the answer to one of the questions states that only the DG is STCd and all other displays are locked out. So, is it STCd for only the DG or for both the DG and the HSI as the ad title suggests? If only for DG, the ad should be more clear the HSI is only for experimentals only.
This is referring to the STC for certified aircraft. When paired with an affordable GMU 11 magnetometer, GAD 29 navigation data interface and select VHF Nav/Comms or GPS navigators, G5 can serve as your primary reference source for magnetic heading, VOR/LOC guidance and/or GPS course guidance as well as providing distance and groundspeed indications. https://buy.garmin.com/en-US/US/p/570665/pn/K10-00280-20# So, it can be used as an HSI when paired with the other items mentioned.
Q: Which features on the Garmin G5 can be used as primary and which can only be treated as secondary, and thus require separate instruments? Thanks!
The G5 can be used as primary attitude indicator, or a backup attitude indicator with primary rate-of-return indicator, DG, or HSI. In the attitude application, the G5 can replace an existing vacuum attitude indicator or rate-of-turn indicator and can also replace existing vacuum driven DGs or existing HSI's.
Q: Does the [G5 DG/HSI + GAD 29B], P/N 11-15031 come with the GMU 11 Magnetometer or does it have to be purchased separately?
Part number 11-15031 will include the G5, GMU11, interconnect harness, and GAD29B.
Q: Does the certified / Stc'd Garmin G5 now support a flight director?
The G5 cannot replace a primary attitude indicator that includes a flight director or is part of an autopilot system (an existing attitude indicator in the primary location that is part of an autopilot but without flight director may be moved to the turn coordinator location and a G5 installed in the primary location).
Q: I have a G5 DG/HSI that I plan on installing with a Garmin 430W. To be IFR certified as my primary DG HSI can I install it with just the GMU 11 or do I need the GAD 29? If I do need the GAD 29, is it sold separately? If I do not need it, what extras does the GAD 29 give me?
If you want GPS data from the GNS 430W to the G5 and / or G5 heading information to go to a certified autopilot then yes you will need the GAD 29B.
Q: Only in dual installations a secondary G5 for certified aircraft can revert to display attitude information or can it revert even in stand alone configuration?
Per the G5 certified install manual there is no reversionary mode as the display will show a red "X" on the data source that has failed.
Q: Just to confirm, If I install two G5 units with the battery backup , the GMU 11 and have an electric turn coordinator I can remove my vacuum system and be legal IFR?
Per the manual 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 HSIs, either standalone or in combination with a G5 attitude display.
Q: Will the Garmin G5 HSI unit work with the Garmin GPS 150XL unit?
No, this is not included in the G5 manual as a possible interface option.
Q: I have read the G5 now supports the Stec-55x autopilot. But I am not clear if it replaces the rate based turn co-ordinator or not.
The G5 DG HSI can only replace your aircraft's vacuum directional gyro.
Q: A couple of the reviews state the certified G5 DG/HSI does mot have a functioning heading bug despite one being shown in the advertisement. Please clarify whether it does or does not have a heading bug and why there would be confusion about this. Regarding the heading bug, more specifically, is there a heading bug interface?
Per the manual, when displaying the Selected Heading, a light blue bug on the tape corresponds to the Selected Heading. When displaying Ground Track, a magenta bug is displayed on the tape. The heading bug turns hollow when GPS is selected.
Q: I have a garmin gnc255 vhf nav unit installed on my aircraft.
i m planning to have a dual G5 installation to replace original instruments.
Do i need a gad29 interface to be added in order that the G5 HSI display VOR
and ILS signals from the gnc255a ? garmin documentation is not very specific on this.
Per the manual, the GAD 29 is not required for the G5 to interface with the GNC 255.
Q: I just had two G5s (AI and HSI) installed in my RV6. Where can I secure the operating instruction manual for these?
The instruction manuals are available for download at fly.garmin.com.
Q: Would the Garmin G5 interface with a King Knl90b GPS?
Unfortunately, we have no compatibility information between the G5 and King KLN 90B.
Q: If you are installing the dual Garmin G5 system, do you need to hook up static and pitot tubing to both G5 units if your connecting the HSI to the waas 430?
Yes, both will need to be hooked up to the pitot static system.
Q: Will a single Garmin G5 unit interface simultaneously with GTN650 and GNC255 to show NAV signals? (VOR or ILS)
Per the installation manual, the Garmin G5 can only be configured to interface with one unit.
Q: Can The G5 DG be hooked up to a KX155 VOR indicator?
Per Garmin Manual Rev 18, the G5 can not be hooked up to a KX 155 King VOR CDI.
Q: Will the G5 interface with the SL-30 NAV/LOC/GS?
Per the installation manual, yes, the G5 will interface with an SL30.
Q: Will the G5 HSI interface with a King 770 Nav/Com?
No, the G5 will not interface with the King 770.
Q: If I mount the G5/HSI, can I revert it in AI mode provided that it could get infos by my Aspen AI?
The G5/HSI can revert to the AI mode. We have no compatibility information for the Aspen AI.
Q: Does the G5 DG/HSI in VHF Navigation show distances?
Yes. The G5 DG/HSI P/N 11-15014 will show distance to way points.
Q: The overview says that the G5 can provide GPSS output to an autopilot when coupled with a GTN or GNS. Will it also provide GPSS output when coupled to the new GPS-175?
Per Garmin: No, the GPS-175 will not provide GPSS when coupled with G5.
Q: Can the G5 use a KX170B as its nav source?
Unfortunately, we have no compatibility information between the G5 and the KX 170b.
Q: Going to install a G5 hsi and a Garmin 155xl certified for IFR. Does it require a GAD29? and will the G5 supply the altitude encoding needed for the 155xl?
Per the installation manual the GAD 29B is required for the GPS 155XL and will not provide altitude information.
Q: Can The Garmin G5 DG/HSI work with GNS480 as directional gyro and communicate(work) with Piper Autopilot-III?
The GNS480 will work with the G5, however the Piper Autoplilot-III will not communicate with the G5.
Q: Will the G5 interface with the Garmin 300XL?
Yes, the G5 can be interfaced to the GNC 300XL.
Q: Does this G5 HSI / DG unit have a heading bug or not?
Per the manual, when displaying the Selected Heading, a light blue bug on the tape corresponds to the Selected Heading. When displaying Ground Track, a magenta bug is displayed on the tape. The heading bug turns hollow when GPS is selected.
Q: Will the G5 DG / HSI work with a TruTrak autopilot?
Per Garmin: that is not on the approved autopilot list.
Q: Can the G5 be used with a GPS 175 for IFR, ILS approach?
The G5 can interface with the GPS 175 to receive GPS data for Ground Track and Ground Speed.
Q: I purchased two G-5s, What I thought was one ADI and one HSI with GAD-29B and GMU-11. The part number is the same on both units. Is there a difference or does it just matter which components provide input as to whether its an ADI or HSI?
The HSI and Attitude Indicator are separate part #s. For the HSI, order part # 11-15015. For the attitude indicator, order Part # 11-14579.
Q: I have a king kx 155 with GS can the G5 HSI interface and can function for ILS LOC?
Per Garmin, the G5 will not interface with the KX-155.
Q: Is this compatible with Apollo GX55 GPS?
Per the installation manual it is not compatible with Apollo GX55.
Q: Does the G5 DG/HSI (11-15015) come with the installation kit (11-14313), or do I need to order that item separately?
Part # 11-15015 comes with the following in the box.
G5 Electronic Flight Instrument
Backup Battery
GMU 11 Magnetometer
GAD 29B GPS Interface Adapter
Connector Kits for G5, GMU 11, & GAD 29B
STC Permission Letter Redemption Card
Q: Can I interface a single G5 to both a GNC255 and GNX375 and switch between the GPS signal and VOR signal on the G5 for navigational guidance? if so, do I need any additional equipment?
The GAD29B can be added to allow connection to both the GPS as well as the NAV.
Q: If paired wirh GPS 175 and GNC 255, will it give VOR/LOC stearing to a Century II Autopilot or only GPSS?
Yes, the G5 can serve as your primary reference source for magnetic heading, VOR/LOC guidance and/or GPS course guidance as well as providing distance and ground speed indications.
Q: Looking to install the G5 HSI, I currently use the 175 as my WAAS nav source, and do not anticipate installing autopilot, do I need the GAD 29 or the basic HSI with GMU 11?
The GMU11 is always included in the Kit. The GAD29B allows for EFIS/Airdata to be transferred between units.
Q: Does the G5 HSI come with mounting hardware?
Yes, it will be included.
Q: When installing a single certified G5 as an AI (continuing to use old vacuum-based DG), would installing a GAD29B add any features to G5 AI?
No, the GAD29B is meant for the DG/HSI to have GPS/Autopilot interface.
Q: For part number 11-15015, is a lightning protection module included in the connector kits, or should it be purchased separately?
You can use 11-18413 which includes the LPM module.
Q: Is there an Experimental version of the G5 with the HSI indicator?
No, the dedicated HSI model only comes in the STC'd version.
Q: Does the G5 work with the Garmin 300xl GPS unit?
Yes, the GNC300xl is compatible with the G5.
Q: Can I interface a G5 with KLN 89B?
Per the installation manual that is not an acceptable GPS unit.
Q: For the G5 HSI to display horizontal and vertical guidance from a GPS 175 do I need a GAD29?
Yes, the GAD29 will be required.
Q: I have a non WAAS 530. Will the G5 with the Garmin WAAS antenna provide Vertical guidance for a Century 41 autopilot with the GAD29B installed and while using the internal WAAS receiver on the G5?
The manual states that a 530W would be required for this installation.
Q: What amp Circuit breaker do I need for the GAS-29B?
Per the G5 installation manual, it requires a 5 amp breaker.
Q: Will the G5 display LOC/GS and DME from a KN 53?
The G5 is not compatible with the KN53.
Q: Will the G5 HSI work with a Garmin GPSMAP 696?
No, it will not.
Q: My aircraft has a 12 volt battery, will it work since the specifications say 14 or 28 volt required?
If the aircraft has an electrical system (alternator) it should be a 14v system running off a 12v battery. Yes, this item will work.
Q: Does this ship with the Gad 29B or Gad 29 D. Do you have all the part number of everything that ships with the G5 , Gmu 11, Gad 29
Part # 11-18413 ships with the GMU11, GAD29B and the LPM.
Q: Is the GAD 29 required when the G5 is used with a Garmin GPS 175?
The GAD 29 is an ARINC 429 module for the G5. To have the course guidance (CDI needles, glideslope, etc.) show up on the G5 from the GPS 175, a GAD 29 will be needed to interface between the two units.
Q: Will the G5 interface with a Avidyne IDF 440 and will the HSI and Glide slope interface?
Yes, this will interface with the IDF 440.
Q: Will the G5s couple with the AeroCruze 100?
Yes, this will work with a G5.
Q: Does the Garmin G5 HSI have to be install by a Garmin approved dealer or can be install by an A&P?
The Garmin G5 HSI can be installed by an A&P.
Q: Can the G5 be installed as just a plain DG with out having to install all the other attachments for other electronic stuff and would the pitot static connections be required?
Yes, this can act as a stand alone DG. The G5 has ports on the back labeled"S" and "P" for standard pitot and static connections 1/8-27 NPT.
Q: I have the G5 ADI, If I add the G5 DG/HSI and GAD29 will it work with my Piper Altimatic IIIC autopilot?
Yes. The Altimatic IIIC Interface is covered and approved and covered in section 5.24 of the G5 STC Install Manual.
Q: I am planning to buy a dual G5 (one with the GAD29) . My autopilot´s plane is an STEC 55 (not the 55X). Is the G5 compatible with the STEC 55 ?
Yes per the manual the G5 is compatible with the Stec 55
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