3 ms·
"and in the 1970s we had supersonic flight" 1947?
by jbay808 7y ago
"and in the 1970s we had supersonic flight"
1947?
- dredmorbius 7y agoI suspect commercial supersonic flight was meant. Concorde was testing by 1969, but didn't carry passengers until 1976. The USSR's Tu-144 actually beat Concorde on both dates -- 1968 and 1975. Though it also beat Concorde, by 25 years, on retirement from passenger service: 1978.