Although Chuck Yeager first broke the sound barrier in 1947, the first flight of a commercial supersonic travel did not take place until 1969.Discuss the subject of supersonic flight, both military and civilian.
Why were supersonic bombers, such as the B-58 and the B-70, phased out, whereas the subsonic B-52 is scheduled to fly for up to 90 years?
Why were the Concorde and Tu-144 supersonic transports commercial failures?
Why did the United States end its SST project in 1971?