Like many on this site, I am interested in beachcat hull design and with some information posted on another site I was able to build a crude 3D CAD model of the MM A2 hull. By crude I mean that you probably would not want to be making moulds straight from this data but its more than adequate for getting design information from. See picture below.

I am sure there are a few designers out there like me with CAD skills that could help produce and distribute 3D hulls.

These CAD models should enable us to make more objective comparisons of different catamarn designs, so when we talk about how much volume a Hobie Wave has or discuss the merits of wave piercing hulls we have access to real numbers, like hull volume, wetted surafce area, Cp and all the other ratios used.

So I have 4 requests

1. If anyone can send me or post links to any public domain drawings of catamaran hulls I would be happy to carry on creating these models. I need plan, side and section views. Such as was posted on http://www.morrellimelvin.com/a2/specifications.htm and http://www.geocities.com/patrik_elfving111/

2. How should I distribute these models?

3. Does anyone have suggestions how else we could present this data for people without access to CAD, i.e. Cp values, Volumes, Wetted surface area.

4. Is anyone else willing to lend a hand to create and post these models.

All the best

Gareth
www.fourhulls.com