GI-275 Question

[Neshi]

I've seen on the many GI275 photos and videos online that you can display TAS, winds or temp but never all at the same time.

Is this a possibility like on the g5 some on the top unit some on the bottom.

 

[Neshi]

got my answer from Garmin which sucks but still better than the current king system.

[flyboy0681]

Rather harsh words, "not a possibility". It would be possible with a software update.

[PeteMc]

I'd question them on the "not a possibility."  Was it a poor choice of words and then mean not possible at the moment?  I doubt there's a hardware issue that they can't do it, so the rest would be code. 

And maybe it will never happen or be years, but if enough people request it, there is always a possibility. 

 

[201Mooniac]

I thought it would work if you disable PFD Sync between the units.  I'm not sure there is much use for PFD Sync if the units are ADI and HSI anyway but maybe it is useful for reversionary mode.

[Utah20Gflyer]

I ran into this issue.  I’d like to display both but since I have to choose I go with True airspeed.  

[flyboy0681]

Just now, Utah20Gflyer said:

I ran into this issue.  I’d like to display both but since I have to choose I go with True airspeed.  

Wind speed and direction.

[EricJ]

1 hour ago, PeteMc said:

I'd question them on the "not a possibility."  Was it a poor choice of words and then mean not possible at the moment?  I doubt there's a hardware issue that they can't do it, so the rest would be code. 

And maybe it will never happen or be years, but if enough people request it, there is always a possibility. 

It means "we're not going to do that".   It may be technically possible, but apparently not business/management possible.    I suspect it means that the engineering development resources for the GI-275 are now "support only", i.e., bug fixes, etc.   That could be for a large number of reasons, the most common being the needed engineering resources are working on other projects with higher expected ROI.   Functional changes that would require any sort of recertification hurdle or other FAA/regulator scrutiny might be difficult to justify.

[PT20J]

I don’t know. Garmin has turned into a software company. They have more releases than Microsoft. 

[Ibra]

Why do you need OAT on PFD? it does not vary that much with distance and altitude and you can read it from elsewhere if you have analog transponder, analogue gauge...

Unless you are looking to avoid icing with +/-1C accuracy (you still need to look at the wings in case instrument are not accurate and in Mooney true speeds TAT will be higher) 

Edited January 10, 2024 by Ibra

[Neshi]

1 hour ago, Ibra said:

Why do you need OAT on PFD? it does not vary that much with distance and altitude and you can read it from elsewhere if you have analog transponder, analogue gauge...
Unless you are looking to avoid icing with +/-1C accuracy (you still need to look at the wings in case instrument are not accurate and in Mooney true speeds TAT will be higher) 

Not a need but if I could get all my info in on one place that would be nice. As for now I get my temp from analogue temp probe and later from my edm upgrade. Winds are from the ifds calculators and TAS from my asi.


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[PeteMc]

8 hours ago, Ibra said:

Why do you need OAT on PFD?

You don't NEED it.  But as @Neshi said, it puts everything in one place.  And with OAT, your PFD can calculate your TAS, among other things.  So you only need to look at one display to get a LOT of various information. 

 

[jlunseth]

Its certainly nice to dream, but tell me, where on that small round face would you put more readouts? It is already cluttered as it is.

[hammdo]

I like having it on one screen…

-Don

[flyboy0681]

7 minutes ago, jlunseth said:

Its certainly nice to dream, but tell me, where on that small round face would you put more readouts? It is already cluttered as it is.

Just to the left of the altimeter setting, in a box similar to the wind speed & direction.

[Hank]

38 minutes ago, flyboy0681 said:

Just to the left of the altimeter setting, in a box similar to the wind speed & direction.

How about in the otherwise empty box already at the top right? Or is "----" supposed to mean something?

[LANCECASPER]

2 minutes ago, Hank said:

How about in the otherwise empty box already at the top right? Or is "----" supposed to mean something?

Altitude pre-select I think

[Hank]

Just now, LANCECASPER said:

Altitude pre-select I think

That would spoil me! When IFR, I just write my clearance on my kneeboard, with arrows Up / Down and the new altitude whenever it changes.

[hammdo]

Preselect Probably the same as G5…

-Don

[LANCECASPER]

20 hours ago, hammdo said:

I like having it on one screen…

-Don

The width of the G5 looks considerably bigger than the GI-275, but if the width of a square instrument and the width of a round instrument were exactly the same, there would be about 21.5% less area with which to work on the round one.  (π/4) = 0.785398    (  @aviatoreb will confirm or correct this  )

Actually the display part of the G5 looks more rectangular. It would be interesting to know exactly what the dimensions of the display are.

The G5 and GI-275 each have their own advantages. The G3X and the TXi have their own. Some of the reasons why deciding what to put in the panel is challenging.

 

[flyboy0681]

9 minutes ago, LANCECASPER said:

Altitude pre-select I think

Correct. When approaching the altitude a tone is heard, which sounds exactly like that from a 747.

[Utah20Gflyer]

10 minutes ago, flyboy0681 said:

Correct. When approaching the altitude a tone is heard, which sounds exactly like that from a 747.

Yes, sets the visual altitude bug, the tone is heard at 1000 ft from the altitude and 200ft.  

[jlunseth]

5 hours ago, flyboy0681 said:

Just to the left of the altimeter setting, in a box similar to the wind speed & direction.

Yes, I am aware of that, and it is only big enough to accept one value. I use TAS, I suspect that is what most people put there. I also suspect that if you Garmin were to try to program in a second value right next to the first one, it would mask or interfere with the markings on the AI when the plane pitches and rolls and the AI rolls correspondingly. 

Edited January 10, 2024 by jlunseth

[jlunseth]

4 hours ago, Hank said:

How about in the otherwise empty box already at the top right? Or is "----" supposed to mean something?

That’s to set altitude. If you don’t have a type of AP that can climb to an altitude and level off, then it is just a warning, but I believe it is used to set altitude for the “climb to” APs. Not sure, don’t have one, but I know that is the altitude window. I have an Icarus SAM that I can set “climb to” altitude into and it gives an oral warning when I am getting there, or once there if I deviate, so I don’t use the one in the 275, but it works similarly. 

[PeteMc]

4 hours ago, Hank said:

That would spoil me! When IFR, I just write my clearance on my kneeboard, with arrows Up / Down and the new altitude whenever it changes.

Similar practice, but rather than move the pen for an "arrow" I just do one line.  For a climb it will start up at a 45 and then continue across a little bit, then I write the number under the line in the little "box" so to speak.  Kind of like the basic long division box from grade school, but more of a slant.  Opposite for a descent, angle down and write the Alt. on top of the line.  Simple quick action that has worked well for me.