About 5 years in.
Because of the National Anthem being sung.
it's more of a training mission by our military, for our countrys security, and the race tracks are actually coordinates as in what would be used as a "target". It's serious business for the military but also a more pleasant, and exhilarating experience, for the race fans.
Having been in the Air Force, I can tell you that a "fly over"is a "salute". And since NASCAR does so much for the armed forces, I thing the military is giving that fly over "salute" as a Thank you to NASCAR fo rall their help. But it is also done right on (or about) the last note of the national anthem, therefore it's a patriotic thing to do as well.
Depends on where you're coming from but about 20 hours plus stop overs.
I remember it taking about 10-14 hours depending on the lay overs
I would think the sponsors and/or organizers of the race. Out of ticket sale proceeds of course.
I'm sure that some of them have planes but one driver who really likes to fly airplanes is Carl Edwards.
The bridge is under compression, that means that weight created by the passage of traffic is pushed outwards to the abutments
they fly when they can fly
There is no commercial air service to anywhere on the Antarctic continent, except perhaps for expensive fly-overs.
Radios or talkies. It's basically the only way to communicate.
It took me 25 hours to come back from Auckland with 3 lay overs it's not too bad