Ship 6301 served as the prototype for the 747-400 and made its first flight on April 29, 1988. Pratt & Whitney then used the aircraft as a test bed for its PW4000 series engines, which would power ...

The -400 dominated the skies during the 90s and early 2000s, accounting for roughly half of the more than 1,500 747s produced during its five-decade-long run. Ship 6301 served as the prototype for the ...