Commercial flights are not a scientific instrument to measure the earth
And no one says they are.
However, they are enough to show just how wrong the bipolar model is.
But of course, rather than admit that, you just appeal to more magic to try to save your failed model.
There are many variables outside of geography which determines flight routes and flight times.
And none which exist which allow a plane to travel over twice the distance in roughly half the time, and especially not for that happening in both directions.
For example, if there was a persistent wind, such as the wind from Perth to Sydney, you would expect significantly different flight times and likely different routes. But we don't get that.
At the bottom of that page in the bipolar section it says that many flat earthers diverged from Rowbotham's work. This means that it's your fault if you use an old model that others have moved on from.
No, given the monopole model is in your FAQ, and with such certainty, it is your fault.
Again, you happily use the monopole model, until it falls apart and then you bring out the bipolar model to just push the problems around.
If you want to officially switch, you should discard the monopole model entirely.
The monopole model is the main and classical model, wrong or not. You are the child who came to me wanting to learn about this. In Physics, you need to teach children the classical Newtonian model before you get to Relativity. Relativity still has not replaced classical Newtonian physics as the "main" model that is taught in schools, even though the school's academics agree that Einstein discredited a lot of what Newton said.
No, I'm not a child.
I'm the intelligent adult who called out your fantasy as BS, so you continually switch around between models to pretend your fantasy isn't BS while just pushing the problem around.
Comparing it to how things are taught in science is quite dishonest.
Do you know a big difference? In the low energy limit, the results from relativity and Newtonian mechanics are virtually identical.
Newtonian mechanics is an approximation which works quite well when dealing with low speeds.
And it is still used for lots of things, because it is accurate enough and more importantly, much simpler.
e.g. the math of u+v is much simpler than (u+v)/(1+u*v/c^2)
Einstein didn't discredit what Newton said, he demonstrated it was an approximation.
The monopole vs bipolar model is nothing like that.
That comparison is more comparable to phlogiston vs oxygen.
When students are taught about combustion, they are not first taught the phlogiston theory. It is entirely wrong, not an approximation and not simpler than oxygen theory.
Most students have no idea about phlogiston, and if you asked them what it was they likely wouldn't even recognise the word.
Likewise, when students are taught about elements, they are not taught about Earth, fire, wind and water as elements of nature, at least not in science. Because that model is incapable of explanation so much it is effectively useless.
And you are not just introducing the monopole model as an approximation.
The FAQ has text clearly incompatible with the bipolar model:
The Earth is surrounded on all sides by an ice wall that holds the oceans back. This ice wall is what explorers have named Antarctica. Beyond the ice wall is a topic of great interest to the Flat Earth Society. To our knowledge, no one has been very far past the ice wall and returned to tell of their journey. What we do know is that it encircles the earth and serves to hold in our oceans and helps protect us from whatever lies beyond.
Here you are claiming to know that Antarctica is a wall of ice which circles Earth.
That is not merely putting forward it as a model. That is effectively making a statement that the bipolar model is wrong.
The displaced nature of the sun images in the Analemma proves that the sun does change speed.
Or that Earth is rotating on its axis and orbiting in an ellipse.
The point I was making was that because you have no actual explanation which allows a numerical prediction of where the sun should appear, you can just insert whatever vague magic is needed to get it regardless of what the sun is doing. That it doesn't indicate one FE model over another.