The Secret Service and USAF
preposition equipment at airports/city frequently visited by the President. How much and what kind of equipment depends on availability.
During the 1st Bush administration AMC moved a stairtruck to Kennebunkport. This ended up being seldom used though as AF1 usually went to Pease and he rode Marine One from there.
Oh BTW: The new White House website has something interesting to say re: the title "Air Force One"... It's safe to call the VC
-25s "Air Force One" even when the pres is not aboard. Obama must surf a.net!!
No matter where in the world the President travels, if he flies in an Air Force jet, the plane is called Air Force One. Technically, Air Force One is the call sign of any Air Force aircraft carrying the President. In practice, however, Air Force One is used to refer to one of two highly customized Boeing 747-200B series aircraft, which carry the tail codes 28000 and 29000. The Air Force designation for the aircraft is VC-25A.