A "fore-and-aft cap" is a type of cap used in maritime contexts, particularly on ships. It is designed to cover the ends of a vessel's hull, providing protection against water and weather. The term "fore-and-aft" refers to the orientation of the cap, which runs parallel to the length of the ship, as opposed to across its width. These caps are essential for maintaining the integrity of the ship's structure and preventing water ingress. They are often made from durable materials to withstand harsh marine conditions, ensuring the safety and longevity of the vessel.