The two Boeing 747s currently used to carry the President of the United States are set to be replaced within the next few years. The present planes are heavily modified Boeing 747-200 aircraft designated VC-25A. The type is the latest to be nominated for Presidential usage after winning a competition against McDonnell Douglas with its DC-10 for the role. They were delivered during the administration of President George H. W. Bush in 1990 and have been flown by all five subsequent US Presidents.