[Photo Group] Unveiling the Development History of U.S. President's Special Plane

According to foreign media reports, Air Force One is a radio call name used to refer to any US Air Force aircraft carrying the US President. In order to avoid confusion with other aircraft in the same airspace, once the President boards, the aircraft is unanimously called "Air Force One" by all the maintenance personnel and all air traffic controllers. Below, let us uncover the mystery of "Air Force One".