'True Round Metal Boat Design'



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'Bezier Chine' is a High-Tech Design – Low--Tech Construction process that enables ‘Metal Boat Builders’ to fabricate true round metal sailboat hulls as easily as a hard chine design.

‘Bezier Chine’ design is based on a computer enhanced application of 'Approximate Development'. A sheet-metal layout method, dating back to a much earlier time, used to develop 'Warp' or 'Compound' architectural surfaces onto a 'Single Plane'.

My first book 'True Round Metal Boat Building' began with the theory of ‘Approximate Development’ takes the mystery out of Bezier Chine. I did not Father ‘Approximate Development’. I did however successfully apply ‘Approximate Development’ to the ultimate ‘Warped’ or ‘Compound’ surface - A Sailboat Hull. In this book 'True Round Metal Boat Design' I am going to share my Design knowledge with you.

‘True Round Metal Boat Design’ will cover the idiosyncrasies specifically related to metal boat design and construction.



Contents

Introduction:                                                        

Surface Design Concepts:                                    

The Model File:                                                     

Profiling Transverse Frames:                              

Defining Transverse Frames:                             

Creating Longitudinal Frames:                            

Defining Longitudinal Frames:                             

Plating Developable Surfaces:                            

Defining True Round Shell Plating:                    

Plating & Longitudinal Crossings:                       

Alternate Longitudinal Placement:                     

Redesigning The Bezier 12.5:                             

Master Curves Dimensions:             

     




Dark Harbor

Click Here

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The Catspaw Dinghy

Click Here


Steel and Aluminum True Round Plans

Click Here


"Lighting Strike'

Why weight does not the sole factor in determining the speed of a Displacement hull.

Go to Lighting Strike's Velocity Predictions


How to layout and fabricate Hull Intergrals

Fabricating Hull Intergrals such as a Hatch Coaming is the next stage of boat construction.

The below pics is an initial dimensioned hand sketch - The first step in the layout process.


Click here to continue the process.


Complimentary

English Wheel Test Pattern

Includes the flattened layout for the second section from the bow of the 'Bezier 28', in PDF file format, to be formed in your English Wheel along with the plywood 'Forming Templates' used to guide the 'English Wheeling' process.

(Practice your English Wheeling Skills)

While, this may not be your 'Forte'. It sure will give you the feel for English Wheeling!)

To receive a Full-size test pattern simply send a request text to:

617-653-1063

Go to English Wheeling page:



Which type of hull is faster - A True Round design or Hard Chine design? See which via the results of 'Velocity Prediction' software.

Click Here

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The top pic is the orginal design - The bottom pic is the converted True Round version.

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