Rephrasing the original question a bit:
When using the FET, why would an aircraft, flying fom Buenas Aires to Sydney, fly away from Sydney, i.e. fly approximate in the direction of Antarctica? Why don't these flight always end up crashing in the big wall at the 'edges' around the flat earth?
My friend is flying this route later this week. I'll get her to take some photos of "the wall" for you.
Regarding flight time, it's only about 14hrs or so so this puts doubts to the FE theory, or at least the map!!
My friend is flying to the Andromeda Galaxy!
You have just as much creds as me.
You seem to be taking up grave digging as a profession! Does it pay better than janatorial work?
I can assure you though, that the distance from Buenos Aires to Sydney on the Globe is quite a lot less than the distance to the Andromeda Galaxy.
I can't answer for flat earthers, they don't even seem to have a map, so could just as easily end up in the Andromeda Galaxy as Sydney.
There is a slight problem with the Buenos Aires to Sydney flight - as far as I know there isn't one (any more) one problem with grave digging - things change!
You might have to go via Auckland, New Zealand (Air New Zealand) or via Santiago, Chile (QANTAS).