Which element is NOT part of the WASP acronym used in sling loading?

The correct answer, which identifies an element not part of the WASP acronym used in sling loading, is Safety Protocol. The WASP acronym stands for Weight of Load, Aircraft Cargo Hook, Stability of the Load, and Point of Attachment. Each of these elements is crucial in ensuring safe and effective sling loading operations.

The Weight of Load refers to the importance of knowing the weight you're working with to avoid exceeding limitations. Aircraft Cargo Hook refers to the specific hardware on the helicopter designed for lifting and securing loads safely. Stability of the Load ensures that the cargo is properly balanced and secured, preventing shifting or instability during flight. Point of Attachment highlights the correct method and location for attaching the load to the aircraft for optimal safety and efficiency.

Since Safety Protocol encompasses a general set of guidelines for safe practices but is not one of the core components represented by the WASP acronym, it is the element that does not fit within this specific framework for sling load operations.