Outside Air Temperature (OAT) is also referred to as what?

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Study for the Pilot's Handbook of Aeronautical Knowledge Exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

Outside Air Temperature (OAT) is also referred to as what?

Explanation:
Outside Air Temperature describes the actual temperature of the air outside the aircraft, i.e., the ambient air the airplane is flying through. In aviation, this ambient air temperature is referred to as the true air temperature—the real, undisturbed air temperature that affects air density and performance calculations. The air data system can read a related value called total air temperature, which includes ram heating from motion, but the standard reference for the outside air is the true (ambient) air temperature. So when you see OAT, think of it as the true air temperature of the surrounding atmosphere.

Outside Air Temperature describes the actual temperature of the air outside the aircraft, i.e., the ambient air the airplane is flying through. In aviation, this ambient air temperature is referred to as the true air temperature—the real, undisturbed air temperature that affects air density and performance calculations. The air data system can read a related value called total air temperature, which includes ram heating from motion, but the standard reference for the outside air is the true (ambient) air temperature. So when you see OAT, think of it as the true air temperature of the surrounding atmosphere.

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