Left unstated is that the Concorde was designed at a time when aviation gas EDIT jet fuel ENDEDIT was priced at pennies per gallon.
That said, it might still be flying if its recertification flight hadn't happened on 9/11.
That said, it might still be flying if its recertification flight hadn't happened on 9/11.
Jet fuel cost about $1/gallon when Concorde retired. Five years later, it would hit $3/gallon. I have to imagine that would have ended it if nothing else had by that point.