RTL with no 3D FIX

What happens if I RTL with no 3D fix (or 0 sats)?

Most likely a gps glitch protection will be triggered and your copter will land.

As we are talking abour plane 2.78, I’m really interested to know how it will handle loss of Gps. Has anyone seen how well it handles dead reckoning?

This could be major problem, RTL with 0 sats or no 3d fix should switch to CIRCLE. From what I see on ground tests… it doesn’t.

It will do what you set it up to do. Each person wants a different thing to happen so its upto the end user.

Maybe I was not clear enough…

What happens when RTL is activated with 0 satellites or no 3D fix?

I don’t remember seeing any GPS failsafe parameters in arduplane.