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Old 26th Apr 2010, 00:30
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Timocracy
 
Join Date: Sep 2007
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ATPL - performance and loading question

When calculating a SAR or SGR.

How do you convert mach to TAS using the whizz wheel or BASIC rule of thumb arithmetic?


ie
"what is the SAR for a 727 that weighs 72,000Kg cruising at FL350 @ Mach .82 and ISA temp?"

SAR = TAS/FF*1000

TAS = ??
FF = 4410KG/h(normal cruise at mach .82)
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