Definition of Localizer (LOC)
Localizer (LOC) is a vital component of the Instrument Landing System (ILS) used to provide directional guidance for aircraft during their final approach to the runway. Its main purpose is to provide left/right guidance information to the pilot necessary to keep the aircraft on course and on the centerline of the runway.
The Localizer consists of a phased array antenna system located at the end of the approach runway. It emits a radio signal that is picked up by receivers mounted on the aircraft, allowing navigation with precision along the Localizer beam. The radio signal provides the pilot with precise directional guidance information in the form of a needle on the instrument panel that remains centered when the aircraft is in the correct position on the approach path to the runway.
The Localizer is essential in providing precision approach guidance, especially when visibility is low or the weather conditions are adverse. It is a crucial aid in ensuring a safe landing by helping the pilot to maintain the correct course and direction to the runway, reducing the risk of runway excursions, and ensuring safe and efficient landings.
In conclusion, Localizer (LOC) is a key component of the ILS used for precision navigation during the final approach phase of an aircraft. It provides left/right guidance information to the pilot to ensure accurate alignment with the centerline of the runway, especially in adverse weather conditions.
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