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TAT to SAT Conversion
I briefly looked around this forum on the subject, but I failed to find anything. I am currently working on some performance charts for the 135 outfit I fly Citations for and I am having a difficult time finding any easy to use formula for converting TAT to SAT for climb performance. I've spent a few hours searching for it using various media, but have been at a loss. Any input will help, a simple chart or anything would be of great use.
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Calculating ram rise? [Archive] - PPRuNe Forums
Some good info there, such as: Another rule of thumb that we used was TAT= SAT + (TAS/100)^2. It works pretty well for approximation. True enough, an approximation. If you want the exact figure with Knots TAS as the entry variable - TAT= SAT + (TAS/87.1)^2, which is exact :ok: Or, if your entry variable is Mach Number - TAT= SAT + (1+.2*M^2), which is also exact :ok: Prop operators may prefer the former, jet jockeys the latter. |
TAT=SAT+IAS/100^3
is another WAG. |
Use whichever Cessna uses which is probably RAT or TAT, no need for converting them.
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