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?
The primary posting should be approximately 100 words.
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