[jdblair]

That's right, the Concorde had engines capable of supercruise - long distance supersonic flight without afterburners.

https://en.wikipedia.org/wiki/Supercruise#Aircraft_with_supe...

[gpderetta]

IIRC Concorde could super cruise a Mach 2 which is unmatched. It would also flight supersonic for most of its journey which is also presented unprecedented difficulties.

It was really an unique plane.

[mshook]

This is correct, reheat / afterburner was used from Mach 0.9 something to 1.7, after which they'd were off. So yes, Concorde could supercruise.