[PCW] Hull design

[Malcolm Tennant]

Marks comments on draught are interesting. Generally when you are designing a
power cat hull there are a number of variables involved. If you have set the
LOA then you try to calculate the full load displacement, you are looking for
a particular hull speed/length ratio, a particular displacement/length ratio
and probably a prismatic coefficient within a given range. Basically what this
means is that once you set the LOA the draught is fixed if you optimise all
the other variables.

Of course you can do it the other way by setting the draught, optimising all
the other variables and then the LOA will be what it will be to give you that
draught.

Once you set one of your variables your choice of values for the other
variables becomes severely limited.

Of course full load displacement is the most important. Once you have that
everything else tends to follow.

Regards,

Malcolm Tennant.

MALCOLM TENNANT MULTIHULL DESIGN LTD
PO Box 60513, Titirangi.
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