1-171 Technology both within and outside the industry, is central one obvious extemal factor is the 747 jumbo jet heralping the age of long-haul mass transport This over a period of a few yaeysremovd the deomd for major passenjer liners At the same time the tirst class intemational service transferred trom sea to air and dmall a turther plow fo fixed sche duie liner frattic.