True Round Metal Boat Building
(Made Easy)
Bezier Curve Design & Construction


Metal Boat Building

"Bezier Curve" is a design and construction methods simipfling the construction of Steel and aluminum "True Round" Hulls. To illustrate "Bezier Curve" construction I have redesigned the classic Herreshoff 12.5 for aluminum construction.

Proof of the Concept

Construction of the Bezier 12.5

See for yourself how simple & accurate "Bezier Curve" builds true round metal hulls:

Current Bezier 12.5 Pictures:


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Radius Chine - Bezier Chine

The first step towards simplifying construction of rounded metal hulls is a popular building method know as "Radius Chine". This method places a large single radius (arc of a circle) along and between two developable surfaces to create a rounded effect.

"Bezier Curve" takes the basic concept of "Radius Chine" to the next level - True Round by using a freeform curves.

You can compare the many similarities and differences between "Bezier Curve" chine and "Radius Chine"

Click Blue Button

Bezier Curve Chine:

"Bezier Curve" construction enables you to build a true round design as easily as a hard or radius chine design. The beauty of Bezier Curve is that it is simple, consistent, and predictable. There is nothing vague about the method. You can see the process thoroughly by following the building of the "Bezier 12.5". Judy vhose a topic on the "Right Toolbar".

If you think you have the skills to build a hard or radius chine hull, then you have the skills to build a true round hull using "Bezier Curve Construction".

Bezier Chine in a nutshell:

  • Bezeir Curve does away with vague and obscure techniques like Line Heating, English Wheels, special tooling, fixtures, and exotic methods to achieve a true round hulls.
  • The pre-engineered design and fabrication method enables an average person to build a true round bottom hull using the same skills as required in hard chine construction.
  • Hull panels are shaped using a cold forming "Press Break" process. The method is simple, consistent, and predictable.
  • The curved sections of this hull fit together easily, with minimal adjustment onto the framework.
  • Along with Architectural drawings Bezier Curve Constdruction uses full size flat patterns and or Cad-Cam cutting files for the build.
  • The result is the unmistakable beauty of a round hull - the uninterrupted graceful line curving to meet the water.

  • Dennis Schaffer, Yacht Designer
    Telephone - 617-653-1063

    B├ęzier Curve DESIGN
    (The next logical step)

    Bezier Building Plans

    Complete True Round Hull construction plans using "Bezier Curve" Design are now available - Click any of the three links below for Details.


    Bezier 12.5 Plans
    Aluminum Construction

    Bezier 35 Plans
    Steel Construction

    Bezier 28 Plans
    Aluminum Construction