MALSF lighting refers to a Medium-intensity Approach Lighting System with Sequenced Flashing lights, which is a visual aid used at airports to guide pilots during landing, especially in low visibility conditions.
Here's a more detailed breakdown:
- Purpose: The primary purpose of MALSF is to provide a clear visual path for aircraft approaching a runway, especially during instrument meteorological conditions (IMC) or at night.
- Configuration: A typical MALSF system extends 1400 feet from the runway threshold. It usually includes:
- Approach Lights: These are a series of lights arranged in a specific pattern along the approach path.
- Sequenced Flashers: Also known as "rabbit" lights, these lights flash sequentially towards the runway threshold, creating the visual effect of a moving ball of light. This helps pilots quickly orient themselves and align with the runway.
- Intensity: MALSF is a medium-intensity system, meaning the lights are bright enough to be seen in moderate visibility conditions but not so bright as to be blinding.
- Variations: While a standard MALSF is 1400 feet long, the length and configuration can be adjusted based on terrain and specific airport requirements.
- Manufacturer: Companies like Honeywell manufacture MALSF systems, ensuring they meet FAA standards and provide reliable performance. The Honeywell MALSF System is specifically designed to provide that visual lighting path for landing aircraft.
In summary, MALSF lighting is a crucial component of an airport's visual navigation aids, providing pilots with essential guidance during the critical approach and landing phase, particularly in challenging weather conditions.
