What is the Short Approach Lighting System (SALS) used for?

The Short Approach Lighting System (SALS) is designed specifically for situations where space constraints limit the installation of more extensive lighting systems. It provides essential visual guidance to pilots landing at airports, particularly in conditions that do not meet precision approach standards. By offering a simplified lighting option, SALS can effectively support non-precision approaches, making it easier for aircraft to align with the runway during landing.

This system is particularly advantageous in instances where there is limited space available for the installation of traditional lighting equipment while still being able to enhance safety and operational efficiency for aircraft. Therefore, the focus on accommodating non-precision approaches with the possibility of requiring a waiver further underscores the role of SALS in optimizing landing operations in challenging environments.