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An altimeter measures an aircraft's altitude by comparing the atmospheric pressure outside the aircraft with a pre-set standard atmospheric pressure. As the aircraft ascends, the outside air pressure decreases, and the altimeter reflects this change in altitude. Accurate altitude readings are crucial for pilots to maintain safe separation from terrain and other aircraft, navigate effectively, and comply with air traffic control instructions. Overall, the altimeter is essential for safe and efficient flight operations.

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1mo ago

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