Subject: [harryproa] Re: Concept for Liveaboard 55
From: "gardner.pomper" <gardner@networknow.org>
Date: 4/4/2008, 3:51 PM
To: harryproa@yahoogroups.com.au
Reply-to:
harryproa@yahoogroups.com.au

Rob,

It is great for you to offer to put together a 3D model of this, but I
would hold for a bit. I think I am coming around to your opinion of
just bumping up from 55 to 60' because I have jammed things together a
bit in terms of walking around the saloon. If I go ahead with the
longer length, which everyone keeps saying isn't a big deal, I will
not be adding more stuff (except for a bit more deck and hardtop), so
I should gain on the payload issue, which should help.

I need to look up specifics to get weights. I know I want the following:

cat dinghy (12' with 15+ HP outboard)
Stove w/oven
microwave
inverter
generator
fridge w/freezer
3 heads w/holding tanks
2 propane cannisters
6 large solar panels
undetermined engine system. Electric on rudders sounds good. I am
watching those threads. I want a system that can drive the boat at 8
knots in protected waters when I can't sail. What this will require in
terms of extra weight is unclear to me. I assume it will just run off
the generator for long (4+ hour) motoring days.

I don't know an even approximate weight on this stuff yet. I will fill
in what I can with the next drawing I post.

As I go ahead an move closer to your charter layout, I was wondering
if you could say again the tradeoffs between the schooner rig and the
single main, in terms of cost, performance and short handed or single
handed crew.

And the reason behind my "visibility" push is that I often don't sit
behind the wheel when sailing. For long sails, I like to lock in the
autopilot and move around the cockpit and want good visibility from
everywhere. It is also more fun for the crew and passengers if they
have a good view from where ever they are (especially the cook).

Thanks again. I am amazed by the amount of effort you put in to
answering all the posts in the group.

- Gardner

--- In harryproa@yahoogroups.com.au, "Rob Denney" <harryproa@...> wrote:
>
> >
> >
> > These new designs make it impossible to dismount I would think
>
> They are all demountable.
>
> I really, really like my visibility from the helm, so I
> > am worried about having the
> > > cabins and heads all at deck level.
>
> There is a 400mm/16" step between the cabin floor and the bridgedeck,
> so there is all round vision from the helm while standing, or with an
> elevated chair.
>
> > >
> > > I tried putting this layout onto the Visionarry hulls, but I expect
> > that they would not carry
> > > the payload, but I am trying to keep this as small (read
affordable)
> > as possible, so I just
> > > went halfway between the 50' and 60' ideas mentioned in the group.
> > To keep the hull
> > > shapes simple (cheaper), I just needed a 5' width in the ww
hull for
> > queen bunks (I want
>
> 5' wide hulls are fine, as long as the waterline is kept narrow.
> Nothing less than 12:1 length to waterline beam. Once you know your
> boat weight, this can be tweaked accordingly. Adding another 5'/1.5m
> is a very cheap exercise.
>
>
> > >
> > >
> > > I would love to get feedback on this. I am particularly interested
> > if I can get away with a
> > > single mast (height off the water must be < 65 feet) and if the
boom
> > will hit the hardtop.
> > > Also, are the hulls the right size (approx).
>
> It is great that you are getting your ideas on paper. It all looks
> possible to me at first glance. The devil is often in the detail, and
> this shows up with 3d drawings. I will do some of these when I get a
> moment. Please remind me in a couple of weeks if I have not done
> them. Possible mast height depends on speed required and weight.
> Rare Bird's mast is a little under 18m/60' so 65' should not be a
> problem for you. The booms can be raised to clear the hardtop. Hull
> size will depend on the weight. Start making lists of what you want
> on the boat and what it weighs and costs and we can work from there.
>
> regards,
>
> Rob
> > >
> > >
> > >
> > > ---------------------------------
> > > Yahoo! for Good helps you make a difference
> > >
> >
> >
> >
> >
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> > 5:37 PM
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4/1/2008
> > 5:37 PM
> >
>

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