How many hand and arm signals are used by the signal person during sling load operations?

• A. 16
• B. 20
• C. 10
• D. 12

Answer: (A)

Communicating with the helicopter during sling load operations relies on a standardized set of hand and arm signals so the crew can understand commands quickly and clearly in a loud, dynamic environment. The standard framework uses sixteen distinct signals, each tied to a specific action such as lift, lower, move in a direction, or stop. This number provides complete coverage of the common tasks and safety actions encountered in a lift while remaining small enough to memorize and execute accurately under stress. Signals are performed with deliberate, visible motions and are used consistently to ensure everyone on the team shares the same understanding of intent.