MSL stands for which altitude term?

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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

MSL stands for which altitude term?

Explanation:
MSL refers to altitude above Mean Sea Level—the average level of the ocean’s surface used as the baseline for measuring elevation. This datum is the standard reference in aviation for calibrating altimeters and reporting altitude, unless another reference such as above ground level (AGL) is specified. The other terms listed aren’t used as the standard aviation altitude reference, so Mean Sea Level is the correct and widely accepted choice.

MSL refers to altitude above Mean Sea Level—the average level of the ocean’s surface used as the baseline for measuring elevation. This datum is the standard reference in aviation for calibrating altimeters and reporting altitude, unless another reference such as above ground level (AGL) is specified. The other terms listed aren’t used as the standard aviation altitude reference, so Mean Sea Level is the correct and widely accepted choice.

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