What are the hull classifications?
There are two major classifications of hulls–mono hulls and hydro hulls. Mono Hulls get their name from their V like shape. This classification is probably the best known boat hull because it was used in the popular TV series Miami Vice. The Mono hull has a continuous wetted surface when operating at racing speeds. A Tunnel Hull (also called a hydro) is a variation of the 3-point design, but the sponsons usually run the full length of the boat. A Catamaran is a type of hydro hull with the usual full side sponsons, running the length of the boat. With an extended free board, they resemble a full-sized offshore racing hull. Outriggers are another type of hydro hull which can be a 3-point suspension, 4-point suspension, or a multi-suspension hull (as classified by IMPBA). Along either side of the main portion of the boat are sponsons which do not run the length of the boat. These sponsons may be in the front, at the rear, or both. When racing, the sponsons and the propeller are typically
