Definition of HAT
HAT or Height Above Touchdown Elevation refers to the height of an aircraft above the designated touchdown point at a particular runway. It is an important parameter for pilots during landing, especially in difficult weather conditions. The HAT information is used in conjunction with the decision altitude (DA) or decision height (DH) to determine if the pilot has a clear line of sight for landing.
The HAT is a critical measurement that is taken into account during runway design, construction, and maintenance. It ensures that aircraft can land safely and effectively without any obstructions. The HAT information is usually available on approach charts, and pilots are required to monitor it during their approach.
In summary, HAT is a crucial measurement that helps pilots assess the safety of landing at a particular runway. It plays a vital role in ensuring the safety of aircraft, passengers, and crew during landing operations.
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