When docking or taking another boat alongside, what is the primary purpose of rigging fenders?

The primary purpose of rigging fenders when docking or taking another boat alongside is to prevent structural damage. Fenders are designed to absorb the impact between vessels and between a vessel and the dock. They cushion the contact points, allowing boats to come together without causing harm to their hulls or other structural elements. This is crucial because even minor impacts can lead to scrapes, dents, or leaks which could compromise the integrity of the vessels involved. By effectively using fenders, boat crews ensure that both their boat and the adjacent vessel maintain their structural integrity while coming into contact with each other.

The other aspects listed, such as preventing environmental hazards, enhancing boat speed, and reducing fuel consumption, do not directly relate to the function of fenders during docking maneuvers. Their primary role focuses solely on protecting the vessels from physical damage.