Air Force One

Air Force One is the official air traffic control call sign for a United States Air Force aircraft carrying the president of the United States. In common parlance, the term is used to denote US Air Force aircraft modified and used to transport the president and a metonym for the primary presidential aircraft, VC-25, although it can be used to refer to any Air Force aircraft the president travels on.

On July 2 1987, an emergency peace conference was called aboard the aircraft, following a series of nuclear missile strikes, which were themselves prompted by the destruction of Western Switzerland, by a nuclear device of unknown origin.

Real world
In 1987, the term Air Force One was applied to VC-137C SAM 27000, a modified Boeing 707.