It's true that any plane carrying the President is called AF1 (any Air Force plane actually), but that's just a technicality because the President doesn't fly on private aircraft unless you're Bill Clinton I guess. Here's something interesting from Wikipedia:
When President Bush came to the end of his second term in January 2009, a VC-25 was used to transport him to Texas. For this purpose the aircraft call sign was Special Air Mission 28000, as the aircraft did not carry the current president of the United States. Similar arrangements were made for former presidents Ronald Reagan, Bill Clinton, and Barack Obama.
It's true that any plane carrying the President is called AF1 (any Air Force plane actually), but that's just a technicality because the President doesn't fly on private aircraft unless you're Bill Clinton I guess. Here's something interesting from Wikipedia:
Didn't Trump take AF1 to Florida?