Air Force 1 and air force 2 are call signs for planes carrying the president and Vice President, not actual specific names or tail number of specific planes. It’s merely a air traffic control thing.
If your referring to the number of engines the planes have that is incorrect.
So any plan could be air force 1 or 2. Although it is typically one of a few planes designated to be used by them, and not some random plane.
If Trump was flying on his private jet, it’s call sign would be air force 1 while he is on it. Then would revert back to whatever it’s tail number actually is if he wasn’t on it
