How many approach lighting marker cones are placed off the minimum operating strip (MOS), and at what interval?

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Multiple Choice

How many approach lighting marker cones are placed off the minimum operating strip (MOS), and at what interval?

Marker cones off the minimum operating strip provide a clear lateral cue along the final approach, helping pilots align with the runway. The standard configuration in this context uses seven marker cones, spaced two hundred feet apart, and offset from the MOS. This setup gives a steady, readable progression of cues as the aircraft approaches, without creating excessive marker clutter or making the spacing too tight to read at distance. If you used fewer cones, the gaps would be larger and cues could be missed; using more cones or tighter spacing would add clutter and increase maintenance demands. The other options would alter either the number or the interval, which would not match this established arrangement.

Marker cones off the minimum operating strip provide a clear lateral cue along the final approach, helping pilots align with the runway. The standard configuration in this context uses seven marker cones, spaced two hundred feet apart, and offset from the MOS. This setup gives a steady, readable progression of cues as the aircraft approaches, without creating excessive marker clutter or making the spacing too tight to read at distance. If you used fewer cones, the gaps would be larger and cues could be missed; using more cones or tighter spacing would add clutter and increase maintenance demands. The other options would alter either the number or the interval, which would not match this established arrangement.

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