last time I flew it did .
Every time you fly at normal cruising altitudes, the horizon is a few degrees below you and the surface visibly slightly curved.
It's worth noting that it's not a huge drop. 3.5 degrees is like a drop of 1 foot at 16 feet away. Very easy to measure with a theodolite, but takes a bit of care to identify by eye.
last time I flew it did .
Hi noodles. I better continue working though. Been lazy.