What is the distance between the base light and directional light on an inverted Y light pattern?

What is the distance between the base light and directional light on an inverted Y light pattern?

• A. 7 meters
• B. 10 meters
• C. 14 meters
• D. 20 meters

Answer: (A)

The pattern relies on a central base light with two directional lights forming the arms of an inverted Y. The spacing between the base light and each directional light is seven meters to create a clear, recognizable shape from the air and on the ground. This distance ensures the pattern is neither too tight nor too wide, so pilots and ground crews can quickly interpret the layout and maintain safe clearance during sling load operations. If the lights were closer, the pattern could blur together; if they were farther apart, the shape would look distorted or harder to read.

The pattern relies on a central base light with two directional lights forming the arms of an inverted Y. The spacing between the base light and each directional light is seven meters to create a clear, recognizable shape from the air and on the ground. This distance ensures the pattern is neither too tight nor too wide, so pilots and ground crews can quickly interpret the layout and maintain safe clearance during sling load operations. If the lights were closer, the pattern could blur together; if they were farther apart, the shape would look distorted or harder to read.