Supersonic transport

Supersonic transport (SST) became operational in 1970, particularly in Europe and the Soviet Union. Despite technical success, they were never adopted in the US because of environmental concerns and noise issues.
 England, France, Russia 1970 Supersonic transport

Supersonic transport (SST) became operational in 1970, particularly in Europe and the Soviet Union. Despite technical success, they were never adopted in the US because of environmental concerns and noise issues.