President: George H. W. Bush, Bill Clinton, George W. Bush, Barack Obama

The Boeing 747-based VC-25s, call-signs SAM-28000 and SAM-29000, that Bush Sr. purchased are the current main-stay of the presidential fleet. This is the jet that Bush Jr. boarded after being informed of the attack on the World Trade Center and Pentagon on Sept. 11th. 

Due to operational costs, the Air Force is currently looking into replacing the two VC-25s. Look to see either modified Boeing 747-8s or modified Airbus 380s carrying the commander-in-chief in the future.