Many people have claimed to see a curvature of the earth from tall towers or from aircraft. Well the RE model is clear, such a curve is not observable at these low altitudes. What then are people seeing?
It is tempting to dismiss such observations as nonsense or nincompoopual, but they are quite possible.
The FE model demonstrates that the accelerating earth would act as a visible block from light reflected of the earth at far distances. Because of this, the viewable horizon of FE is much closer than that of FE. FE actually predicts a visible curve (the visible area being a disk and appearing curved) at much lower altitudes.
So when you are seeing a curve to the earth at such low altitudes, you are actually witnessing proof of the earth's flatness and it's acceleration upwards!