Airfield Management Block 3 Practice Test

SALS configuration details

High intensity approach lighting system configured as ALSF-1, 1,500 ft long and without sequenced flashing lights. Medium intensity system with full sequenced flashing lights. Low intensity system with no sequencing. ALS F-2 configuration with 2,000 ft length and sequencing lights.

Correct Answer:

Low intensity system with no sequencing.

Explanation:

Approach lighting system configurations are defined by the level of intensity and whether lights sequence along the path. SALS is the Simplified Approach Lighting System used at smaller airports or for less demanding instrument approaches. Its hallmark is low intensity lighting and no sequencing along the approach path, which keeps both cost and maintenance simple while still providing basic alignment cues for pilots. That’s why the correct option—low intensity with no sequencing—best fits SALS. The other options describe more complex systems (full ALS configurations) that feature higher intensity and lights that flash in sequence, or longer standard lengths, which are not characteristic of SALS.

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