Garmin Axis - Replacement/Upgrade for G3X

[flyingcheesehead]

Wait - right now, the GI275 can drive the GFC 500. I assume the Axis and GI275 would be synced. What if you just continued to drive the GFC500 with the GI275? Anything you do on the AXIS would flow to the GI275 and then onto the GFC 500.

Your GI275 would then be your Primary (as it is now), with the AXIS technically being a MFD that also shows and does everything it would do if it was technically the PFD.

Even if that would work, there's still no failover. If the GI275 fails, then the Axis wouldn't be able to control it directly. It doesn't matter which one is in control, there isn't any failover because they aren't both on the CAN bus.

I don't think that architecture is allowed any more, though, since the Axis is connected to a lot of stuff via CAN bus.

Didn't the G3x have that capability?

I don't think so, since the G3X GPS was VFR only. It may have mirrored the GTN flight plan, but you couldn't change the flight plan from the G3X and have it auto sync to the GTN.

 

[WDD]

I think that would work, but same thing - If the GI275 fails, then the Axis can't control it directly. It doesn't matter which one is in control, there isn't any failover because they aren't both on the CAN bus.

But... I'll have dual GI275's running. So if the AHRS GI175 fails, the secondary HSI GI275 takes over, and the Axis should still be able to control / cross feed into it???????

 

[flyingcheesehead]

But... I'll have dual GI275's running. So if the AHRS GI175 fails, the secondary HSI GI275 takes over, and the Axis should still be able to control / cross feed into it???????

Per the Axis install manual section 3.2.3.2, "Only a single GI 275 is approved for interface with the Axis flight display system." So, no.