No, there are parts of the flat earth we've never been to so no planes go there. See?
You don't need to go everywhere with a plane to calculate the greatest possible distance of the sun from an observer. I have explained BEFORE that even flat earthers know the EXTENT of the sun travels NORTH and SOUTH and the approximate distance between those two. These are the two EXTREMES where the sun is DIRECTLY overhead. Since we know for CERTAIN the limits of THESE extents, we can determine the FARTHEST possible distance that an observers can be from the sun.
The actual size of the flat earth outside of these bounds is IRRELEVANT to the FARTHEST distance an observer can be FROM THE SUN.
Now use the 200,000 and the 1,000 mile sun that's 32-72 miles wide, those are my numbers although eart could be even bigger.
With the kind of non-facts that you throw out, it's impossible to actually discuss real things with you. Are you just going to keep trying to make the earth larger and larger until geometry and trigonometry change into unicorns and fairy dust?
The sun hasteth back to the place it arose according to the Bible.
Which is exactly what we SEE on the globe earth.
You probably already did and you realize that nobody on earth AT Night can see the sun.
Once AGAIN, that is IMPOSSIBLE on the flat earth. Even with your ridiculous 200 K mile earth, the sun will still be ~0.34 degrees ABOVE the horizon and ~170,000 miles away.
The sun would become A TINY DOT long before is could "disappear over the horizon". The sun and the moon are the SAME SIZE all day long. Get out of your mom's basement and take a look.
Flat earth BUSTED.
Read my posts in the Biblical thread for more clarification. Your nasa buddies nor anyone can measure the WHOLE flat earth beyond the ice wall yet, period. Forget the numbers and the math for that circle in a square image AND forget the pyramid. Instead picture the flat earth circle in the square, NOT the pyramid.
Guilt by false association is just another of the many fallacies that you like to promote.
I have SPECIFICALLY stuck so SIMPLE math to prove your bogus "theory" incorrect. The math is so SIMPLE, that you can prove it yourself, but you won't.
You have not ONCE looked at the actual SIMPLE math and prefer false accusations instead.