Using G5 as GPS indicator

[bob865]

I'm looking at finally putting a GPS in my plane.  There was recently a discussion about what was required for making a GPS installation legal for IFR and one item, as I remember it, was an indicator and annuciators showing the source in the pilot's view.  My understanding was the GI-106 had all th annunicators on it so it covered this requirement. 

Anyway, my real question is, can I use a G5 as the indicator for the GPS for a legal IFR installation?  I know it's capable of displaying the info, but would this still be required to have a traditional indicator?  I was planning to upgrade my DG to a G5 as well when it dies, but if it can act as a legal indicator for IFR GPS use, then I would prefer to buy that over the traditional indicator.

Thoughts?

[ArtVandelay]

G5/HSI is all I have

[kpaul]

32 minutes ago, bob865 said:

I'm looking at finally putting a GPS in my plane.  There was recently a discussion about what was required for making a GPS installation legal for IFR and one item, as I remember it, was an indicator and annuciators showing the source in the pilot's view.  My understanding was the GI-106 had all th annunicators on it so it covered this requirement. 

Anyway, my real question is, can I use a G5 as the indicator for the GPS for a legal IFR installation?  I know it's capable of displaying the info, but would this still be required to have a traditional indicator?  I was planning to upgrade my DG to a G5 as well when it dies, but if it can act as a legal indicator for IFR GPS use, then I would prefer to buy that over the traditional indicator.

Thoughts?

You can see in the bottom left of the HSI the blue arrow which also has GPS below it.  That will change based on the NAV input..ie. VOR, LOC, GPS. 

[jaylw314]

4 hours ago, bob865 said:

I'm looking at finally putting a GPS in my plane.  There was recently a discussion about what was required for making a GPS installation legal for IFR and one item, as I remember it, was an indicator and annuciators showing the source in the pilot's view.  My understanding was the GI-106 had all th annunicators on it so it covered this requirement. 

Anyway, my real question is, can I use a G5 as the indicator for the GPS for a legal IFR installation?  I know it's capable of displaying the info, but would this still be required to have a traditional indicator?  I was planning to upgrade my DG to a G5 as well when it dies, but if it can act as a legal indicator for IFR GPS use, then I would prefer to buy that over the traditional indicator.

Thoughts?

AFAIK, the big requirement for annunciation of various modes is that they have to be within the primary field of view, so the main problem will be keeping the GPS display in that area.

Does the G5 annunciate approach modes, like LNAV vs LPV?

[EricJ]

6 hours ago, jaylw314 said:

AFAIK, the big requirement for annunciation of various modes is that they have to be within the primary field of view, so the main problem will be keeping the GPS display in that area.

Does the G5 annunciate approach modes, like LNAV vs LPV?

Yes, it does.    e.g., If you have LNAV and vertical guidance is added it will say LNAV+V.

[jaylw314]

6 minutes ago, EricJ said:

Yes, it does.    e.g., If you have LNAV and vertical guidance is added it will say LNAV+V.

Nice!  I wonder if you might not need the GPS in the primary field of view, then..

[jamesm]

For  me the GI106 didn't make  sense....  one more instrument hole /space  taken  by a mechanical instrument that has potential to be failure  prone. I am driving  2-G5 ADI/HSI  with a GNC255 and KX155 KI208 LOC/VOR indicator only. It  is in the G5 installation manual.  The G5 has for ILS capabilities.  I serious doubt the  G5 wouldn't be selling if  couldn't be used as a standalone instrument.

Just my thoughts

James '67C

[bob865]

That's perfect!  I bought a G5 when my ADI died back in January and absolutely love it.  It's time to finally add a GPS and was weighing the option of a $2000 GI106 or a $2500 G5 HSI and it felt like a no brainer which is why I did the G5 attitude in the first place.