suresh What is the purpose of the altimeter and how is it used during flight?
In aviation, the altimeter is a crucial instrument used to measure an aircraft's altitude above a given reference point, typically sea level. The primary purpose of the altimeter is to provide the pilot with information about the aircraft's vertical position in the airspace.
During flight, the altimeter is used to continuously display the current altitude of the aircraft, allowing the pilot to maintain the desired flight level and safely navigate through different altitudes and airspaces. It helps the pilot to maintain vertical separation from other aircraft, follow prescribed altitudes for a specific route, and comply with air traffic control instructions.
The altimeter works based on atmospheric pressure changes with altitude. As the aircraft ascends, the air pressure decreases, and the altimeter interprets and displays this change as an increase in altitude. Similarly, as the aircraft descends, the altimeter detects the increase in air pressure and reflects this as a decrease in altitude.
Overall, the altimeter is a critical instrument that assists pilots in ensuring safe and precise altitude control during flight, contributing to the overall safety and efficiency of air travel.
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