Which option correctly states the light formation requirements for sling load operations?

• A. Inverted Y uses 5 lights; T formation uses 4 lights
• B. Inverted Y uses 4 lights; T formation uses 5 lights
• C. Inverted Y uses 3 lights; T formation uses 5 lights
• D. Inverted Y uses 4 lights; T formation uses 6 lights

Answer: (B)

The signals used in sling load operations rely on recognizable light silhouettes so the helicopter pilot can quickly interpret ground guidance. The inverted Y formation is designed with four lights to create a clear, compact silhouette that marks the pickup point from multiple angles and distances. Adding one more light to form the T shape gives a longer, more defined signal that emphasizes the load’s alignment and centerline, which is especially helpful as visibility changes or when the aircraft needs precise positioning for the hoist. That’s why the inverted Y uses four lights and the T formation uses five. The other counts wouldn’t reproduce these standard silhouettes accurately, which could lead to misinterpretation by the pilot.