It will be more costly than expected due to a time-consuming modification process, supply disruptions, and other challenges.

For a time, the Boeing 747 and the Airbus A380 were the world's two double-decker passenger aircraft in production. The last ...

The Airbus A380 was delivered between 2007 and 2021 ... the Space Shuttle and for being converted as the Presidential Air Force One aircraft. Number of Boeing 747s built: 1,574 Number of Boeing ...