Reply to post: "twice the speed of sound (Mach 2 - 2,447kph, 1,522mph)"

Take-off crash 'n' burn didn't kill the Concorde, it was just too bloody expensive to maintain

Anonymous Coward
Anonymous Coward

"twice the speed of sound (Mach 2 - 2,447kph, 1,522mph)"

Sorry to be a pedant but Mach 2 doesn't correspond to any specific velocity, it simply means "exactly twice the local speed of sound". What that means in true air speed depends on the local conditions. It's just that the performance of the plane is similarly affected by the same local conditions so Mach number is more relevant when flying the plane in those circumstances.

</rant>

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