You could bring in a little compound curve in the top side with the
KSS system on the ww hull as the area with the windows could be cut
and shut with minimal bogging needed.
Personally , I think the KSS method is probably the way to go for a
Harry using a plastic core- possibly doing the deeper ww hull in two
parts with a rubbing strake or sponson to cover the join-
Robert- In harryproa@yahoogrou
>
> Hi Herb,
>
> Using flat panels without chines will give you either conics or
cylinders
> which limits your hull shape. If you want compound shapes from
flat panels
> you have to either torture the panel (early plywood Tornados) or
use chines.
> Kelsall's KISS method uses flat topsides and a series of
lobsterback cuts
> below the waterline which need bogging to form a compound curve.
Again
> pretty restrictive though probably well suited to our long, thin,
rockerless
> hull shapes..
> The Transpac leeward hull will be a long cylinder with faired foam
ends.
>
> Mark
>
>
> ............
> Mark Stephens
> www.harryproa.
>
> -----Original Message-----
> From: harryproa@yahoogrou
[mailto:harryproa@yahoogrou
> Behalf Of Herb Desson
> Sent: Tuesday, 23 January 2007 6:03 PM
> To: harryproa@yahoogrou
> Subject: [harryproa] Re: elementary and elementary cruiser
>
>
>
> Mark,
>
> Rob seems to be creating some fair lines in the transpac harry with
> his flat panel hang from the ceiling method. Is that method working
> or does it have some bugs?
>
> Best regards
> Herb
>
> --- In harryproa@yahoogrou <mailto:harryproa%
> ps.com.au, <mark@> wrote:
> >
> > Kit boats are a lot less intimidating for some people compared to
> building
> > from plans where you source all your own materials, do all your
own
> cutting,
> > set up strong back and temporary frames, do large areas of
glassing,
> make
> > lots of dust from grinding and filling etc. Kit boat are self
aligning
> > requiring less skills, less mess, less VOCs, and you end up with
a very
> > light boat as the panels are heat pressed under factory
conditions.
> The best
> > part is much less hull fairing as only the chine taping needs to
be
> faired.
> > All bulkheads, beam panels, Easyrig booms, rudder components,
> walkways and
> > interior fitout can be precut saving a lot of time as the cnc
> cutting is so
> > accurate. The kit arrives as a stack of 2400 x 1200 DuFlex
panels with
> > prescarfed edges ready to glue side to side. To remove the parts
you
> jigsaw
> > the tabs holding the parts in place. Bit like a balsa aeroplane
kit.
> >
> > Of course there are trade offs. Kits are more expensive and the
boat
> has a
> > flat panel look. There are probably more home built kit
catamarans
> now than
> > any other building method and I suspect the people building them
> wouldn't
> > have attempted a boat any other way. Flat panels don't have to
look ugly
> > either. Some designers get around this by strip planking some
parts
> like the
> > saloon top and gunwales to get away from the plywood look. The
multi
> chines
> > are mostly under water, and no they don't make any noticeable
> difference to
> > performance.
> >
> > I haven't drawn anything yet so not sure how good I can get a
Harry
> to look
> > in flat panel. Just throwing the idea out there to see what
people
> think.
> >
> > Mark
> >
> >
> >
> >
> > ............
> > Mark Stephens
> > www.harryproa.
<http://www.harrypro
>
> >
> > -----Original Message-----
> > From: harryproa@yahoogrou <mailto:harryproa%
> ps.com.au
> [mailto:harryproa@
> ps.com.au] On
> > Behalf Of oceanplodder2003
> > Sent: Tuesday, 23 January 2007 2:47 PM
> > To: harryproa@yahoogrou <mailto:harryproa%
ps.com.au
> > Subject: [harryproa] Re: elementary and elementary cruiser
> >
> >
> >
> > I'm not sure I see any advantage in a hard chine duflex boat.
More
> > expensive, not pretty against faster build time. What about
weight
> > compared with strip kiri and glass?
> >
>
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