A monohull is a type of boat or ship that has a single hull, which is the main body of the vessel. This design is common in sailing yachts and motorboats, providing stability and ease of handling. Monohulls are often favored for their performance in various water conditions and their ability to sail efficiently. Monohulls can vary in size and purpose, from small recreational sailboats to large ocean-going vessels. They typically have a keel, which helps with stability and prevents capsizing. Popular examples of monohulls include the Beneteau and Catalina brands, known for their reliable and well-designed sailing yachts.