Concorde's Engines

Date:         12 May 99 02:48:29 
From:         "Bill Herman" <>
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I don't regularly read this group, so sorry if this has been asked

Do the Concorde's Olympus engines use some form of afterburner while flying
supersonic?  A friend of mine doesn't think so, but I don't see how that
plane can fly at Mach 2 without reheat.  I thought the F-22 was considered
to be a great technological achievement because of its ability to fly beyond
Mach 1 at military power (no afterburner).  It's hard to believe that a
plane designed 20+ years prior to the F-22 already had that capability.

Thanks for your help.

Bill Herman