No, the primary aircraft known by the call sign Air Force One is not a Gulfstream; it is a highly modified Boeing 747-200B, designated as the VC-25A. These iconic "Jumbo Jets" have been the centerpiece of presidential travel since the early 1990s. While the Air Force does maintain a fleet of smaller Gulfstream aircraft (the C-37A/B) for transporting high-ranking government and military officials, these only carry the "Air Force One" call sign on the rare occasion that the President is physically on board. In 2026, the older VC-25A models are being phased out in favor of the newer VC-25B, which are based on the Boeing 747-8 airframe. These "flying White Houses" are equipped with advanced secure communications, anti-missile defense systems, and enough fuel capacity to stay airborne indefinitely through mid-air refueling, features far beyond the capabilities of a standard executive Gulfstream jet.