6.9 mile/hour in mach

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6.4 mile/hour in mach 6.5 mile/hour in mach 6.6 mile/hour in mach 6.7 mile/hour in mach 6.8 mile/hour in mach 6.9 mile/hour in mach 7 mile/hour in mach 7.1 mile/hour in mach 7.2 mile/hour in mach 7.3 mile/hour in mach 7.4 mile/hour in mach

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