Thread: Massive jetstream!!!
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Old 06-07-2011, 08:21 PM
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DavidTrap (David)
Really just a beginner

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Join Date: Jun 2009
Location: Brisbane
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So Peter, if you were in a jet stream at 240knots doing ~490knots at cruise in a 747 wouldn't your ground speed be greater than the speed of sound?

DT
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