Garmin Avionics & ForeFlight

Dennis M Carleton

Dennis M Carleton

Pre-Flight
Joined
Nov 7, 2019
Messages
41
Display Name
DMC
I’m getting a G3X installed and I’m a FF user. Will I still need my Sentry or will FF pull AHRS data from the G3X?
 
I don’t think it will send AHRS data to Foreflight. I have a GTX345 transponder, and that send AHRS data. The Bluetooth on the G3X in my installation is only for flight plan transfer.
 
Tangential questions.

What are the failure modes that would have your on-board AHRS be read by Foreflight but not by your primary avionics?

I know a number of pilots who have kept their Sentry and other GPS/ADS-B/AHRS portables as backup in case of system failures (I have an old XGPS portable). Have you considered this?
 
midlifeflyer said:
I know a number of pilots who have kept their Sentry and other GPS/ADS-B/AHRS portables as backup in case of system failures (I have an old XGPS portable). Have you considered this?
Click to expand...
Exactly. I keep a GDL 52 on top of my glareshield, not just because I can take my Sirius XM subscription with me to other planes that way, but also because this gives me a backup AHRS with my iPad should all the panel-mount avionics fail for some reason.

GDL52.jpg
 
midlifeflyer said:
Tangential questions.

What are the failure modes that would have your on-board AHRS be read by Foreflight but not by your primary avionics?

I know a number of pilots who have kept their Sentry and other GPS/ADS-B/AHRS portables as backup in case of system failures (I have an old XGPS portable). Have you considered this?
Click to expand...

For a G3X install, it would require the G3X and the backup (G-5 or GI-275) to fail, but not the GTX-345. So would not help in a total electrical failure after the backup battery runs out.

For my upcoming install, I am considering a back up battery for the G3X and one GPS/Nav/Com
 
Anthem said:
Though I have been tempted many times to move the subscription from the GDL52 to the GTN750 that is fixed inside the cockpit.
Click to expand...

Huh? 750 cannot source XM, it has come from some XM receiver. Or am I missing what you are saying?
 
OK, you shortened what you said to the point it was unclear.
 
Groundpounder said:
Assuming it's configured correctly by your installer, yes.
Click to expand...
The annoying part!

Garmin guy at Oshkosh told me to connect FF to both of them (gnc355 and the gtx345.) 345 for traffic/weather and the 355 for gps/flight plan transfer…he said if I used garmin pilot I wouldn’t have these issues (he might have been a sales guy at some point haha)
 
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