![](https://www.flyingmag.com/uploads/2021/10/httpswww.flyingmag.comsitesflyingmag.comfilesimages201711chart-wise-nov-17-preview.jpg?auto=webp&auto=webp&optimize=high&quality=70&width=1440)
Localizer-only approaches have been around for decades, providing better-than-VOR lateral guidance while demanding no special cockpit avionics except the standard VOR-ILS indicator common to most airplanes. When it comes to accuracy, full-scale deflection of the course-deviation indicator from the center on a VOR signal represents 12 degrees off course, while a similar deflection on the narrower localizer signal represents between 3 and 6 degrees from the center position. The limitation of a localizer approach, however, is that it does not provide vertical guidance to the runway like a full ILS and is hence considered a non-precision approach.
Rob Mark and Jason BlairWriter
Comments(0)
Related Stories
![](https://www.flyingmag.com/uploads/2022/09/Pilot-and-copilot_adobe-stock-rs.jpg?auto=webp&auto=webp&optimize=high&quality=70&width=1440)
Subscribe to Our Newsletter
Get the latest FLYING stories delivered directly to your inbox