What are the limitations on the forward and aft cargo hooks of the CH-53E/K?

The correct answer reflects that the CH-53E/K is designed for specific load-bearing capabilities that affect how the cargo hooks can be utilized. In this case, the forward and aft cargo hooks must be used in combination to achieve optimal load distribution and stability during flight. This requirement is essential to ensure that the helicopter can maintain balance and control while carrying heavy or unevenly distributed loads.

When the hooks are used together, it helps distribute the weight more evenly across the aircraft, reducing the risk of an imbalance that could impact flight performance. Using both hooks in tandem allows for safer handling of larger or more complex cargo loads that might exceed the capacity or stability provided by a single hook.

By contrast, the other options suggest scenarios that either lessen the operational capabilities of the hooks, such as independent usage or single hook loading, or imply adjustments that are not standard practice in the operation of this aircraft type. Understanding the importance of combining both hooks is crucial for ensuring the helicopter's operational safety and efficiency during sling load missions.