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Old 1st May 2010, 08:49
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stubby1
 
Join Date: Jan 2010
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Tat & Sat
Is not SAT higher than TAT due to dynamic heating, as i remember tat = sat - (v /100) square.
so for anti icing TAT is appropriate and for the sake of erring on the safe side putting it off SAT is appropriate at these very low temp.
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