Meanwhile worldwide journey grew rapidly, and airways turned a number of the world’s largest employers. By the late Fifties, the most important airlines had transitioned to Boeing or Douglas-built jet airliners — which carried twice as many passengers at twice the velocity in higher consolation. Between 1960 and 1974 passenger quantity on worldwide flights grew six fold. The Boeing 747, a jumbo jet with 360 seats, took worldwide air travel to a model new degree of pleasure when launched in January 1970. Each nation had at least one airline, and each airline had barely different requirements for the aircraft they used. Boeing and McDonnell Douglas pioneered new strategies of mass customization to construct plane to these specs.
