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The Concorde achieved supersonic speeds using afterburners.

Supercruise is the ability of a standard jet engine to achieve supersonic speeds without fuel gulping afterburners.

The F-22 was the first non X-plane to make supersonic speeds without afterburners.

Supercruise is a compromise in design that uses more fuel than subsonic flight to cover the same distance in less time, but less fuel than afterburners used to make the same speed over the same distance.

http://en.wikipedia.org/wiki/Supercruise