What cargo hook should the lightest load be attached to on a CH-47?

The correct answer indicates that the lightest load on a CH-47 should be attached to the aft cargo hook. The reasoning behind this is primarily related to the helicopter's balance and weight distribution during flight. The CH-47 has two sets of cargo hooks: a forward and an aft hook, allowing for flexibility in load distribution. When the lightest load is attached to the aft cargo hook, it allows for better aerodynamic stability and helps maintain the center of gravity safely.

Attaching the lightest load to this hook helps in reducing the risk of excessive yaw and lateral movement, ensuring smoother flight dynamics. This practice is especially important when the helicopter is heavily loaded or when carrying multiple loads of varying weights, which can affect overall handling and performance.

The options that suggest using the center, forward, or underbelly hooks are less optimal for this specific scenario, as they may impact the helicopter's center of gravity and overall stability differently. Therefore, utilizing the aft cargo hook for the lightest load helps maintain operational safety and efficiency.