A new elevated passenger
boarding system that protects travelers from the weather,
noises, and odors went into operation at many airports in
1959 as commercial jet superliners became common.
The new Sikorsky S-60 represents
a major breakthrough in helicopter development because
vibration is not transmitted from the airframe to the
the Year 1959
Questions or comments about this
This page was last updated on 05/28/2017.