[Never on my watch]

Not sure why you felt the need to write this since I was very clear in my post:

“...the plane is called “Air Force One...
If you are lazy. There are two of them, do you call both of them AF One? Or AF One and AF One A?”

The aircraft is a VC-25 Air Force One (you may check the annual Air Force Almanac if you wish). There are 2 aircraft distinguished by tail numbers.

“F-15s are Eagles...
And when they are airborne, they have a call sign, not F-15 One, Two etc.”

The point of my comment was to clarify the difference between the nomenclature and call sign. When I was airborne I had a call sign but my aircraft's nomenclature never changed. Someone on the ground looking up would refer to the nomenclature not the call sign (which is the true context of my post).

I don't get the need for your "lazy" comment.

[xone]

The point of my comment was to clarify the difference between the nomenclature and call sign.

And yet, using the term AF One for the aircraft is confusing callsign and nomenclature.