In 1980, Pan Am significantly upgraded its first class cabins on its Boeing 747 and 747SP aircraft by introducing Sleeperette ...

Its how the wide-body concept came into being. The 747-100, the first variant of the aircraft type, was ordered by Pan Am in 1966, according to the Lewiston Morning Tribune. Pan Am ordered 25 ...

If not already evident, the Boeing 747-100 was the first generation 747 that Boeing delivered to its initial set of customers, which included Pan Am, Saudi Arabian Airlines, and Kalitta Air.