ATC services are provided on a first come, first served basis, with a few
exceptions. Presidential aircraft are given priority over most other
aircraft, but not all other aircraft. Top priority is given to aircraft in
distress, and if it was deemed necessary for A1 to do a 360, A1 would be


I did hedge a little saying A1 wouldn't often be given a 360. I wasn't thinking
of an aircraft in trouble, thanks for giving a reasonable example.