Approach Lighting System (ALS) explained simply Ever wondered how pilots manage to line up with the runway during low visibility or at night? That’s where the ALS comes in. It’s a sequence of high-intensity lights leading up to the runway threshold. It helps you visually identify where to land, and gives critical guidance to align the aircraft, especially in low visibility or night operations. You’ll find different ALS configurations depending on the type of approach: • Non-instrument • Non-prec

🫡🫡🫡aircraft runway lighting systems** used for approach and landing 1. Simple Approach Runway Lighting (RL)** – Basic lighting configuration aiding pilots in low-visibility landings. 2. Runway CAT I RL** – Enhanced lighting system showing **starter extension**, **stopway**, and **yellow caution zones** for improved safety. 3. Runway CAT II & CAT III RL** – Advanced lighting system with **touchdown zone lights**, **centerline lights**, and supplementary approach lighting**, critical for landin