![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/0/05/ILS_localizer_illustration.svg/640px-ILS_localizer_illustration.svg.png&w=640&q=50)
Instrument landing system localizer
Horizontal guidance system / From Wikipedia, the free encyclopedia
An instrument landing system localizer, or simply localizer (LOC,[1] or LLZ prior to 2007[2]), is a system of horizontal guidance in the instrument landing system, which is used to guide aircraft along the axis of the runway.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Localizer_M39.jpg/640px-Localizer_M39.jpg)
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/0/05/ILS_localizer_illustration.svg/320px-ILS_localizer_illustration.svg.png)