What does LOC in the LOC RWY 13 procedure stand for?

In the context of the LOC RWY 13 procedure, LOC stands for Localizer. A localizer is a ground-based navigation aid that provides lateral guidance to pilots for aligning the aircraft with the runway during the final approach phase of landing. It operates on the VHF (Very High Frequency) band and broadcasts a radio signal that helps pilots determine their lateral position relative to the optimal flight path toward the runway.

Localizers are essential components of Instrument Landing Systems (ILS), facilitating precision approaches, especially in low visibility conditions. When pilots refer to a procedure like LOC RWY 13, they are indicating the use of the localizer component of the ILS for arriving at runway 13, ensuring safe and accurate alignment for landing.