What are the 4 types of keels?

Answer 1

There are two different elements to a keel. They are the hydrodynamic element and the structural element. In layman terms, the keel is the backbone. There many different hulls. When you speak of hulls, you have displacement hulls, semi-displacement hulls or planing hulls. Hulls come in different shapes like moulded or hard chined or simply chined.