What is BANK CUSHION associated with in vessel operations?

BANK CUSHION refers to the phenomenon that occurs when a vessel is navigating close to a bank or shore. In this context, it specifically describes the effect of water pressure caused by the proximity of the bank, which can push or "cushion" a boat away from the nearest riverbank or shore. This effect can help maintain a safe distance from the bank while the vessel is maneuvering, particularly in narrow channels where there may not be much room for error.

When a vessel approaches the bank, the water between the vessel and the bank can become compressed, leading to a slight increase in pressure that encourages the vessel to move outward. This is an important consideration for ship maneuverability, as it allows for better control when making turns or adjusting the boat's position in relation to the bank.

In contrast, factors like vessel speed near the bank, fuel consumption, and maneuverability in open water pertain to different aspects of navigation and vessel operation, but they do not encapsulate the specific effect known as BANK CUSHION, which is primarily focused on the interaction between the vessel and the bank.