If you are considering building a chine hull such as a power boat, single or double chine sail boat or similar craft, you should consider using the “Ezi-Build” fibreglass technique. There are two main Ezi-Build methods - one where you build an inexpensive female mould and lay up the hull in that mould and another where you pre-make the hull panels and assemble them inside a simple frame mould.
First we will look at the female mould method. Back in the early 1960’s, we were designing fishing trawlers that could be built of fibreglass using inexpensive one-off or limited production moulds. With the current rise in the number of people interested in power boats and the acceptance of chine hulls in general, we decided to simplify and streamline our original methods to make them suitable for one-off production by amateur and professional builders.
When looking at these techniques, we were developing a new range of power boat designs using the latest CAD software so that these designs did not involve difficult curves but instead were easily assembled in simple one-off moulds. These new designs all reflected the ability of the computer to produce absolutely fair, developable hull surfaces suitable for turning flat sheets of fiberglass into attractive hulls. Most of the original designs were directed towards steel or aluminium but the demand for similar fiberglass methods led us to develop computer lofted hulls with full developable surfaces and the result is the Ezi-Build technique.