PPRuNe Forums - View Single Post - Mach-Number to Airspeed Conversion Above 65,000 Feet
Old 5th Feb 2011, 21:34
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mm43
 
Join Date: Jun 2009
Location: NNW of Antipodes
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There's an ISA Chart to 70,000 feet at:-

ISA Chart

It is an adaption of stuff floating around on the web.
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