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 ...

The Boeing 747 variants had different top speeds, with the 747-100 hitting 600 mph and the 747-8 reaching 614 mph. The unique 747SP was introduced for long-haul flights, with a top speed over 621 ...