[PCW] Hull design

[Mark]

Some folks do this, John Shuttleworth being one:
http://www.john-shuttleworth.com/Images/research2.jpg
http://www.john-shuttleworth.com/Images/T50Cdrwgs.jpg
These designs have the expanded section mostly in the midships.

I've often wondered whether a way to improve load carrying capacity is to keep the hulls slender but go deeper.  I understand some folks love the shallow draft, but most sailboats have 5-6' deep keels and even the Nordhavns are 5-6'draft on many models. 

Is a 4' draft that much of a sales impediment compared to a 2.5' draft?  

--- On Tue, 3/11/08, Jim Meader <jimmeader at mac.com> wrote:

> From: Jim Meader <jimmeader at mac.com>
> Subject: [PCW] Hull design
> To: "Power Catamaran List" <power-catamaran at lists.samurai.com>
> Date: Tuesday, March 11, 2008, 11:10 AM
> Just a thought.
> 
> Since most of the discussion on hull design centers around
> long and 
> narrow - why not a hull design where below the water line
> the hull 
> meets that requirement but above the water line it is
> flared wider to 
> give greater design livability.
>   |            |
>   |----\/----|  all I could do with a keyboard
> 
> I realize this would not make much difference under heavy
> weather 
> conditions, but most of us tend to stay out of heavy
> weather if we 
> can. There may be other issues but this was just a thought.
> 
> Another thing that I have observed in this forum, and that
> is assumed 
> usage of your boat.
> 
> First and foremost as anyone can see at any marina, most of
> the boats 
> never leave the dock.
> 
> Of the ones that do use their boat, day/weekenders are
> probably the 
> largest group.
> 
> With the smallest group being the very lucky cruising
> couple. with 
> this group being further divided into luxury and minimizing
> fuel 
> costs.
> 
> based on these obviously simplistic concepts - what is
> important to 
> each is very different. There is no right or wrong just
> different 
> usages.
> 
> I myself fall into the weekend with extended trips group.
> Which makes 
> me want more heavy luxuries on my boat ( costing more fuel
> to push it 
> through the water ) but I am wanting to enjoy my short
> periods of 
> usage and am willing to pay the fuel penalty. If I ever am
> able to do 
> a long extended cruise I am sure my needs would change.
> Bottom line 
> different designs for different usages.
> 
> I by no means feel these descriptions are anything more
> than an 
> attempt to maybe qualify our points of view, so they add to
> a readers 
> value. If we know their perspective we can better
> understand their 
> meaning.
> 
> By the way our  latest discussions have been wonderful and
> the reason 
> I wanted to be part of this group.
> 
> Jim Meader
> jimmeader at mac.com
> _______________________________________________
> Power-Catamaran Mailing List


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