G3X with a 650 or 750

[PilotX]

Opinions requested. If you were looking to save a few AMUs. If you chose to put a 650/GNC355 with your G3X vs a 750/650. Given my level of use and understanding, the 750 and 650 can both power the G3X, Foreflight and pushing flight plans to the panel outweigh any benefit of increased 750 real estate for button pushing. Currently have a 530W/King Nav/com.

Thoughts?

[Pinecone]

If you need to save funds, I see no reason to not go G3X with GTN-650.  And a simpler nav/com (non-GPS) as secondary.

 

[hubcap]

I believe that most of the functionality of the 750 is replaced by the G3x. The 650 has all of the nav capabilities of the 750, if I am not mistaken. I have the G3x with the 650 and I am very content.

[Fly Boomer]

24 minutes ago, Pinecone said:

If you need to save funds, I see no reason to not go G3X with GTN-650.  And a simpler nav/com (non-GPS) as secondary.

 

I looked at a Rocket with two 430s and a G500.  It seems like the small screen on the 430 doesn't matter because everything is shown on the G500.  Seems like the relationship between the G3X and a 430 or 650 would be similar.

If you have the G3X, what do you get from a 750 that you can't get from a 650?

[Rick Junkin]

8 hours ago, PilotX said:

Opinions requested. If you were looking to save a few AMUs. If you chose to put a 650/GNC355 with your G3X vs a 750/650. Given my level of use and understanding, the 750 and 650 can both power the G3X, Foreflight and pushing flight plans to the panel outweigh any benefit of increased 750 real estate for button pushing. Currently have a 530W/King Nav/com.

Thoughts?

My original plan was G3X/GNC355/GNC255A. I opted for G3X/GTN650Xi/GNC255A mainly to get the Smart Glide integration.

I considered the GNC355 in place of the GNC255A but decided that was a cost savings opportunity with minimal impact to operational capability, along with providing a second VOR receiver for old school navigation if GPS hiccuped. I never really considered the GTN750Xi because I figured the G3X would be my primary user interface. The 750 would provide a larger display screen for other formats, but I went with a second G3X display for EIS redundancy and to use it for the other formats. If you take a look through the GTNXi Pilot Guide it shows you all of the differences between the 750 and 650. There are not a lot, and none that swayed my decision or the ultimate capability of my panel. The most impactful difference I saw is the 750 displays both the comm and nav frequencies, and the 650 can only display the comm OR the nav frequencies and you have to switch between them. Same with the GNC255A. I've got my MFD configured to display nav freqs for both the 650 and the 255A, problem(?) solved. It's definitely a first world problem, if a problem at all. The other thing would be the 750 can display Flight Charts and the 650 can't, but if you're using Foreflight that probably doesn't matter much to you. I have Flight Charts on the G3X but I still prefer the Foreflight presentation on the iPad and may drop them from my data subscription in the future. Or I may keep them for redundancy for when the iPad craps out. Yeah, I'll probably keep the subscription, cheap insurance.

Here's what it looked like yesterday:

[PilotX]

All makes sense. G3X presentation is great. Pushing from FF to a 650 is ideal. Thanks everybody.

[Pinecone]

15 hours ago, Fly Boomer said:

I looked at a Rocket with two 430s and a G500.  It seems like the small screen on the 430 doesn't matter because everything is shown on the G500.  Seems like the relationship between the G3X and a 430 or 650 would be similar.

If you have the G3X, what do you get from a 750 that you can't get from a 650?

Another big screen to use for something else. 

My plane will end up with G3X, 750, 650 and AERA 760 in dock.  And an Ipad.   I have found I really like something running the dedicated traffic screen.  The map screens show traffic, but they are somewhat cluttered, so it does not stand out.

On long flights, I like one screen set to show 200 miles or more to see weather  well before I get there.

I already have the 650, and was going to change to the 750 with a lower level #2 nav/com, but the delta to keep the 650 was low enough to do that.

[Fly Boomer]

3 hours ago, Pinecone said:

Another big screen to use for something else. 

My plane will end up with G3X, 750, 650 and AERA 760 in dock.  And an Ipad.   I have found I really like something running the dedicated traffic screen.  The map screens show traffic, but they are somewhat cluttered, so it does not stand out.

On long flights, I like one screen set to show 200 miles or more to see weather  well before I get there.

I already have the 650, and was going to change to the 750 with a lower level #2 nav/com, but the delta to keep the 650 was low enough to do that.

Wasn't too long ago that the adverts for airplanes specified "3-screen EFIS" or "4-screen EFIS".  More screens=more better.

[toto]

23 hours ago, hubcap said:

I believe that most of the functionality of the 750 is replaced by the G3x. The 650 has all of the nav capabilities of the 750, if I am not mistaken. I have the G3x with the 650 and I am very content.

Much of the display functionality is replaced, but the G3X still depends on the 750 for its nav source. The G3X has a reversionary GPS that is VFR only iirc. 

The 650 would be a perfectly adequate replacement for the 750 as a nav source. The only real difference between the 650 and 750 is the display size, and with the G3X it matters much less. 

[RoundTwo]

8 hours ago, Pinecone said:

Another big screen to use for something else. 

My plane will end up with G3X, 750, 650 and AERA 760 in dock.  And an Ipad.   I have found I really like something running the dedicated traffic screen.  The map screens show traffic, but they are somewhat cluttered, so it does not stand out.

On long flights, I like one screen set to show 200 miles or more to see weather  well before I get there.

I already have the 650, and was going to change to the 750 with a lower level #2 nav/com, but the delta to keep the 650 was low enough to do that.

If you plan on hardwiring the Aera 760 into the 650 or 750, check ahead on available RS-232 protocols. I found out the hard way that my 750 can only have 1 MAP MX serial connection, and it’s using that to talk to the G3X. So much for the Aera receiving flight plan updates for the right seater.

[Pinecone]

Thanks.  I could just leave it connected via BT.

[icurnmedic]

On 10/20/2023 at 8:00 PM, hubcap said:

I believe that most of the functionality of the 750 is replaced by the G3x. The 650 has all of the nav capabilities of the 750, if I am not mistaken. I have the G3x with the 650 and I am very content.

Same here.