Yeah, I’ve done a few Sydney -> SF as well, that’s been around for a while I think. I was wondering whether we’ll get to the point where we can go any airport

Yeah, I’ve done a few Sydney -> SF as well, that’s been around for a while I think. I was wondering whether we’ll get to the point where we can go any airport to any other airport direct. That means figuring out what are the longest theoretical flights. After a bit of thinking I realized that is equivalent to the distance between two points opposite each other on the surface of a sphere, which is just half the circumference of the sphere. Earth’s circumference is roughly 25,000 miles, so there you go: a 12,500 mile range gives you the ability to fly from any airport to any other airport direct. Qantas’s research flights for this project clocked 11,060 miles so we’re pretty close to this being possible.