Which hand and arm signal is used to indicate Stop?

• A. Right arm extended horizontally with left arm overhead moving
• B. Holding arms crossed overhead, not moving
• C. Circular motion overhead ending in throwing motion
• D. Arms extended horizontally sideways beckoning upwards

Answer: (B)

In sling load operations, stopping the action must be communicated with a clearly visible, unmoving gesture. The Stop signal is shown by holding both arms crossed overhead and staying perfectly still. This stationary, high-contrast position is easy to spot from any angle and leaves no ambiguity that movement should cease immediately, which is crucial for safety around the load and aircraft.

Why this is the best answer: the crossed-arms-overhead gesture conveys a definitive halt without implying any direction or subsequent action. It stands out from motions that indicate starting, continuing, or adjusting the load, which could be misread under crane or helicopter operations where timing is critical. The other motions involve movement or directional cues, so they imply action to be taken rather than an immediate stop. Keeping the signal still and clearly overhead ensures the crew understands to stop all activity right away.