Installation manual gi-275 & g3x

[McMooney]

I'm trying to decide between a g5 ai or a gi-275 but am stuck thinking about upgrade paths.

thinking birdy will eventually be upgraded to a g3x as primary with a g5 or gi-275 as backup and would like to know what those configs looks like from a  hardware/wiring  point of view.

anyone have the appropriate installation manual they can share?

 

 

 

Edited February 12, 2023 by McMooney
more words

[glbtrottr]

Request one directly from garmin - g3xpert@garmin.com - but it is for my experimental , not my mooney.


Sent from my iPhone using Tapatalk

[Ragsf15e]

2 hours ago, McMooney said:

I'm trying to decide between a g5 ai or a gi-275 but am stuck thinking about upgrade paths.

thinking birdy will eventually be upgraded to a g3x as primary with a g5 or gi-275 as backup and would like to know what those configs looks like from a  hardware/wiring  point of view.

anyone have the appropriate installation manual they can share?

 

 

 

The G5 is designed to work with the g3x and is seamless.  The gi-275 is not.  @PT20J has details.  But stuff like setting the altimeter on a g5 crossfills to the g3x, but not the -275?  Skip has more info.

What autopilot do you have now though?  The -275 is compatible with more legacy autopilots than g5.

[McMooney]

15 hours ago, Ragsf15e said:

The G5 is designed to work with the g3x and is seamless.  The gi-275 is not.  @PT20J has details.  But stuff like setting the altimeter on a g5 crossfills to the g3x, but not the -275?  Skip has more info.

What autopilot do you have now though?  The -275 is compatible with more legacy autopilots than g5.

Brittain b5, unfortunately, due to not being on any drawing or compatability list,  no avionics shop will connect it anyway.

 

trutrak or gfc500 are most likely in my future

Edited February 12, 2023 by McMooney

[Ragsf15e]

4 hours ago, McMooney said:

Brittain b5, unfortunately, due to not being on any drawing or compatability list,  no avionics shop will connect it anyway.

 

trutrak or gfc500 are most likely in my future

Well than either will work with your current autopilot.  If i was thinking future g3x, I’d go with the g5.  If i was going any other direction, I’d probably do the gi-275 as it’s newer, has more options and fits round holes.

[PT20J]

The problem is that the technology keeps changing making incremental upgrade planning difficult. If you are putting in either G5s or GI 275s you will want two, but you will only need one if you later put in a G3X. And, as it stands now (but who knows in the future) the G5 integrates with the G3X for a standby instrument, but the GI 275 does not so if the GI 275 is used as a standby instrument for the G3X it is reduced to just being an artificial horizon with no nav or autopilot capabilities.

If I just wanted to upgrade the instrument panel now and add a GFC 500 later, I would go with GI 275s.

If I really wanted a G3X, I would either go ahead and install that now with a G5, or if that's not currently feasible, I would just save my pennies and do it all later. One thing that often gets overlooked is that the installation cost is about half the hardware cost if you do it all at once, but it is more if you do it incrementally.

Skip

[McMooney]

purchased 2x g5's, waiting on the harness to be built.

Thank you Saint, aircraft spruce and sarasota avionics.

 

No thanks to Garmin and a number of other "Good" avionics shops.

 

 

Edited February 16, 2023 by McMooney

[McMooney]

On 2/15/2023 at 9:42 PM, McMooney said:

purchased 2x g5's, waiting on the harness to be built.

Thank you Saint, aircraft spruce and sarasota avionics.

 

No thanks to Garmin and a number of other "Good" avionics shops.

 

 

G5's arrived, was super excited until amazon sent a note rescheduling delivery of EVERYTHING we need to install