If an aircraft is approaching from 500 feet or higher, which marking pattern is used?

• A. NATO T
• B. Inverted Y
• C. Circular beacon
• D. Five lights in a T

Answer: (D)

Marking patterns on the landing zone are chosen to give the pilot clear cues from distance so they can locate and align with the LZ as they descend. When approaching from 500 feet or higher, the five lights arranged in a T shape provide a large, high-contrast signal that’s easy to recognize from far away and clearly indicates the landing area center and orientation. This helps the pilot establish the correct approach path early and reduce confusion as they descend.

The other patterns are used in different contexts: a circular beacon is a general nighttime signaling device rather than a ground cue for a far-off approach, and inverted Y or NATO T patterns serve other orientation roles or distance cues that aren’t as effective from that higher altitude.