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547.50 mach is about twenty times as fast as The Space Shuttle.
In other words, it's 23.4420 times the speed of The Space Shuttle, and the speed of The Space Shuttle is 0.042658 times that amount.
(Orbiter vehicle velocity)
The space shuttle orbits at a speed of 23.3560 mach. During liftoff, the space shuttle accelerates to orbital speed in 8.5 minutes, consuming over 1.59 million kg (3.51 million lbs) of propellant in the process.
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