Which of the following is NOT a part of the primary ground crew during sling load operations?

In sling load operations, the primary ground crew is essential for the safe and effective handling of cargo. Each member has specific roles that contribute to ensuring a successful operation.

The signalman is responsible for guiding the helicopter and provides visual signals to the pilot during the approach and departure of the aircraft. The hookup man is crucial for attaching the load to the helicopter’s cargo hook, ensuring that it is securely fastened before flight. The static probe man plays a role in ensuring safety by detecting static electricity, preventing potential hazards during the operation.

The ground crew officer, while significant for overall coordination and management of the sling load operation, does not directly participate in the physical handling of the load. Instead, their responsibilities are more related to the overarching supervision and organization of the operation, which is why they are not classified as part of the primary ground crew directly involved in the loading and unloading tasks. Therefore, this distinction makes the ground crew officer the correct answer as not being a part of the primary ground crew during sling load operations.