I have found after reading these posts for the last couple hours that the MO of the flat earther is to come up against a wall, and suddenly disappear or start attacking the person questioning them, leaving their half baked theory forgotten. So I am starting to think maybe I should play devils advocate and work their stupidity out to its conclusion.
To facilitate that, I will now calculate the flight time between Sydney and Perth when using the FE map that I have seen multiple FE'ers post up.

The distance I know from living here is coast to coast in the United States which is roughly 3,000 miles. The size of Australia on that map is roughly double the size of the United States. So in this fantasy world where the earth is flat, Australia is 6,000 miles long.
The cruising speed of a Boeing 747-400 is 570 mph.
So using simple, provable math, the flight time from Sydney to Perth using a flat Earth map is 6000/570 which equals roughly ten and a half hours.
Wait... but planes make the same trip in roughly 3 hours... how can my impeccably thought out and tested flat earth model be so far off observable real world tests??
Obviously the 747-400s are actually traveling at 1,710 miles an hour, but only in Australia, because they suddenly can make the 3,000 mile trip in 5 hours for the coast to coast trip in America. Because bending light rays, ether and the earths acceleration down.