There was a B version on the drawing board which would have dropped the afterburner... https://en.wikipedia.org/wiki/Concorde#Range https://en.wikipedia.org/wi

There was a B version on the drawing board which would have dropped the afterburner... https://en.wikipedia.org/wiki/Concorde#Range https://en.wikipedia.org/wiki/Concorde#Range And you're right, the ballpark fuel consumption for Concorde says your hourly rate is not that dissimilar in subsonic than in supersonic so you better fly fast quick...