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Asked by: 2484 views ,
Aerodynamics, Aircraft Systems, General Aviation

what is the different between TAT and OAT


and can we have OAT frim TAT, or we should use spearte sensore to measure OAT and TAT

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1 Answers

  1. Wes Beard on Oct 08, 2012

    Yes, it is possible to calculate the outside air temperature from the total air temperature using on board computers. These computers take into account the TAT temperature and speed of the aircraft at that moment.

    Total air temperature is saturated air temperature (SAT is the same as OAT inflgiht) with the effects of compressibility added in.

    I blogged about this awhile ago.

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