GI-275 Question

[flyboy0681]

2 hours ago, jlunseth said:

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. 

You like to see TAS to see how slow you are going, I like to see the wind speed and direction to see why I'm going slow.

[jlunseth]

11 hours ago, flyboy0681 said:

You like to see TAS to see how slow you are going, I like to see the wind speed and direction to see why I'm going slow.

Says the J to the K. My favorite cruise number there is 177. What’s yours?

Sorry, couldn’t resist.

[flyboy0681]

53 minutes ago, jlunseth said:

Says the J to the K. My favorite cruise number there is 177. What’s yours?

Sorry, couldn’t resist.

I file for 155. Coming from the PA28 world, I couldn’t be happier. 

[jlunseth]

5 hours ago, flyboy0681 said:

I file for 155. Coming from the PA28 world, I couldn’t be happier. 

I have been asked at least twice to slow down for the Citation on approach.  I wouldn't get in a drag race with them at cruise though. Hey, fast is what we Mooney people do!

[aviatoreb]

On 1/10/2024 at 2:32 PM, LANCECASPER said:

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.

 

Did you just tell me how to put a square peg in a round hole?

[LANCECASPER]

29 minutes ago, aviatoreb said:

Did you just tell me how to put a square peg in a round hole?

Not really, but I did have an employer about 15 years ago that wanted to install a security camera in my home office so that days I worked from home he could monitor me. I told him how to give himself a colonoscopy with a security camera which was sort of square shaped, come to think of it. 

[AdamJD]

@Neshi, as of a year ago, you could display multiple misc fields on the GI275 ADI.  See below for a pic from a friend of mine's F.  HOWEVER, I couldn't configure mine this way because I have the GFC500.  The command bar for the GFC500 is the reason.  I was bummed.  My solution is to display TAS on the ADI, winds on the HSI, temp on the GFX345 and GS on the 430W.  

 

[Neshi]

[mention=19022]Neshi[/mention], as of a year ago, you could display multiple misc fields on the GI275 ADI.  See below for a pic from a friend of mine's F.  HOWEVER, I couldn't configure mine this way because I have the GFC500.  The command bar for the GFC500 is the reason.  I was bummed.  My solution is to display TAS on the ADI, winds on the HSI, temp on the GFX345 and GS on the 430W.  
 

@AdamJD that would actually work for me


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[Neshi]

Ok dropped her off this morning.

And of course, when I get back to the office 2 weeks of work out of town work show up.

[PeteMc]

I put my GI-106B where you have your VSI.  I wanted to have them side by side so that if there was a deviation it would quickly get my attention.

[EricJ]

I'd suggest a JPI 900 instead of an 830 and ditch the old engine instruments except maybe a mechanical tach.

Also, a PSE PMA450B audio panel would ditch the intercom, give you 2xBT, etc., etc.   

 

[Pinecone]

Why keep any steam gauges?

[PeteMc]

3 hours ago, Pinecone said:

Why keep any steam gauges?

Personal preference OR pending your installation you have to.  I kept my Turn Coordinator as I had heard the Aspen's was hard to get use to, even more so than the Altitude and Speed tapes.  But I put it where I can someday add something else if a new gizmo comes out.  

 

[Neshi]

14 hours ago, EricJ said:

I'd suggest a JPI 900 instead of an 830 and ditch the old engine instruments except maybe a mechanical tach.

Also, a PSE PMA450B audio panel would ditch the intercom, give you 2xBT, etc., etc.   

 

Thanks.

The 730 is being reused. I've had from my old aircraft when we upgraded it to 900 a for a failing analog cluster. (Install & reprogramming cost next to nothing.)

Took quotes on the audio panel as well but as there is no slide in replacement for it could not justify all the money for functionally adding Bluetooth and inteliaudio(its nice but not amu nice).

 

[Neshi]

4 hours ago, Pinecone said:

Why keep any steam gauges?

It's what I had in the planes I've flown since I started my instrument training all those years ago.

Things just feal weird when they're not there.  

 

 

[LANCECASPER]

5 hours ago, Neshi said:

Thanks.

The 730 is being reused. I've had from my old aircraft when we upgraded it to 900 a for a failing analog cluster. (Install & reprogramming cost next to nothing.)

Took quotes on the audio panel as well but as there is no slide in replacement for it could not justify all the money for functionally adding Bluetooth and inteliaudio(its nice but not amu nice).

 

+1 for doing the upgrade to a JPI900 or a GI275 EIS on this airplane while you're doing your upgrade. The analog engine instruments will fail on this airplane also.

 

The PSEngineering 7000 series, which has bluetooth, is plug and play for a KMA24 audio panel. The only thing they'll have to do is make an intercom harness to tie into your existing intercom wiring. https://www.ps-engineering.com/PMA7000_Series.html

 

[Pinecone]

19 hours ago, Neshi said:

It's what I had in the planes I've flown since I started my instrument training all those years ago.

Things just feal weird when they're not there.  

The only steam gauge I prefer is the altimeter, since it is easy to see if you are off altitude at the big hand should be straight up or straight down.

I learned steam gauges, then tapes in a HUD, then glass panel.  My new panel has NO steam gauges.

[jlunseth]

On 4/16/2024 at 9:16 AM, Pinecone said:

Why keep any steam gauges?

Because removing the vacuum in some models results in a single point of failure. All becomes dependent on the single alternator and also the single battery.

@PeteMc If you install the correct version of the GI275 it includes a Turn Coordinator function certified as primary, in other words, as a replacement for your original TC. The TC shows up as two small aircraft symbols at the top of the 275, one on each side of center. There is also a slip/skid. I believe this version of the 275 requires an OAT sensor to be installed with the 275 as I recall. It then computes standard rate turn for the conditions and displays as the two symbols. However, you need to think about a backup AI, which is the other function of the TC. Personally, I would not rely on a TC for AI function in IMC with turbulence, you would not stand a chance.

[natdm]

On 1/9/2024 at 9:26 PM, PT20J said:

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

That's a good thing. All their stuff is just a giant touch screen now with new OS's that are better designed to be more modular, so why not roll updates with new features and bug fixes as soon as you can?

[natdm]

On 4/16/2024 at 12:00 PM, Neshi said:

It's what I had in the planes I've flown since I started my instrument training all those years ago.

Things just feal weird when they're not there.  

 

 

I'd think this would hurt the value of the plane slightly -- having redundant gi275's, then also maintaining a vac system. You've got two GI275's, why not just get used to the avionics the way they're designed to be used?

[natdm]

15 minutes ago, jlunseth said:

Because removing the vacuum in some models results in a single point of failure. All becomes dependent on the single alternator and also the single battery.

Correct me if I'm wrong (of course) but having two gi275's means he's got an alternator, a battery, and a backup AHRS unit plus 60 minutes of power in each unit (provided the backup batteries were purchased)? I'd think if I lost power and still had a vac system, I'm still landing within the hour. 

[PT20J]

1 hour ago, natdm said:

That's a good thing. All their stuff is just a giant touch screen now with new OS's that are better designed to be more modular, so why not roll updates with new features and bug fixes as soon as you can?

It would be a good thing if we could legally install them ourselves. But, all require at least a logbook entry from an A&P and for some certified products (G3X for instance) Garmin only makes the software available to dealers. Most dealers charge about an hour of shop time to install the software, make the logbook entry and print and update the AFMS. If you have multiple pieces of equipment, and you want to keep them all updated, you might have to take it to the shop several times a year. 

When I managed an enterprise software group for a Fortune 500 company, we planned and scheduled our releases to minimize customer impact unless it was a patch for a critical bug fix. 

[natdm]

1 minute ago, PT20J said:

It would be a good thing if we could legally install them ourselves. But, all require at least a logbook entry from an A&P and for some certified products (G3X for instance) Garmin only makes the software available to dealers. Most dealers charge about an hour of shop time to install the software, make the logbook entry and print and update the AFMS. If you have multiple pieces of equipment, and you want to keep them all updated, you might have to take it to the shop several times a year. 

When I managed an enterprise software group for a Fortune 500 company, we planned and scheduled our releases to minimize customer impact unless it was a patch for a critical bug fix. 

True. I'm a software engineer so I get planned release cycles. This for sure is different since it's definitely impactful. 

[PeteMc]

2 hours ago, jlunseth said:

If you install the correct version of the GI275 it includes a Turn Coordinator function certified as primary,

Correct, both my Aspen PFD and my fully loaded Backup 275 have a TC in them, but my points still hold true.  My TC is not required, I personally wanted to keep it as I had heard (and agree) the TC in the Aspen is SMALL and take some getting used to.  But in answer to the original question, not everyone can remove all their steam gauges.  Some may need them for an AP or it's just required for some other regulatory reason. 

And I don't know the details of the STC for the GI275, but can you really remove all your steam gauges if you install a single GI275?  I would have thought you required a second fail-over device. 

 

Edited April 18 by PeteMc

[Neshi]

34 minutes ago, PeteMc said:

Correct, both my Aspen PFD and my fully loaded Backup 275 have a TC in them, but my points still hold true.  My TC is not required, I personally wanted to keep it as I had heard (and agree) the TC in the Aspen is SMALL and take some getting used to.  But in answer to the original question, not everyone can remove all their steam gauges.  Some may need them for an AP or it's just required for some other regulatory reason. 

And I don't know the details of the STC for the GI275, but can you really remove all your steam gauges if you install a single GI275?  I would have thought you required a second fail-over device. 

 

I could if I wanted to remove everything from the panel but the 275s.

I don't want to though my reasons may seem silly to some, but they are mine.

Maybe one day ill rip out all and put in a G3X, G500xi or whatever Garmin sells to replace them. (Not likely unless I stumble into a huge pile of cash.  )

it does look nice when clean just not for me.