>Any ideas?
The US Air Force has a pair of VC-25As (tail numbers 28000 and 29000) which are basically highly modified Boeing 747-200Bs.
These planes use the traffic control sign "Air Force One" when the president of the USA is on board one of them.
The VC-25A is capable of flying 12600 km, but can also re-fuel in-flight, which means they can stay up almost indefinitely.
Might be tricky to charter one though
Cheers,
Geoff Glave
Vancouver, Canada