A keel is a structural element found in boats and ships, running along the bottom from the bow to the stern. It provides stability and helps the vessel maintain its balance in the water. The design of the keel can vary, with some being flat and others having a more pronounced shape, depending on the type of vessel and its intended use. In addition to its structural role, the keel also influences a boat's performance, particularly in sailing. A well-designed keel can enhance a vessel's ability to sail efficiently and maneuver effectively, making it an essential component for sailboats and yachts.