Where can you find more information on building carbon mast and
beams?

Todd


--- In harryproa@..., "rob denney" <proa@t...> wrote:
> G'day,
>
> There are a few variables, but basically, 400 gsm uni glass is
about $15 per
> kg, 300 gsm carbon uni is about $150/kgand carbon tow is $30/kg,
epoxy is
> about $13 per kg. Depends how much you buy and where, but these
are ball
> park for bulk in Aus. The carbon will be 6 times stiffer than the
glass,
> and near enough 150% as strong.
>
> Regards,
>
> Rob
> ----- Original Message -----
> From: "Robert" <cateran1949@y...>
> To: <harryproa@...>
> Sent: Wednesday, January 14, 2004 12:23 PM
> Subject: [harryproa] Re: Beams to windward hull
>
>
> > -What is the price differential of carbon against glass,
especially
> > by the time you add the extra resin needed for the glass?
> > Robert
> >
> > -- In harryproa@..., "Tony Richardson"
> > <atrichardson@b...> wrote:
> > > As it is such a small boat I would suggest putting on what you
> > think will do and have a go.
> > > Ply box section beams are strong, light and easy to build.
> > > If you were a bit clever with glass you could overlay glass
uni's
> > onto PVC drainpipe. Wrap the unis in mat and there is your beam.
> > Leave the PVC inside.
> > > No Rot problems
> > > How much glass and where etc? Experiment/Guess
> > > Rgs
> > > Tony
> > > ----- Original Message -----
> > > From: Todd
> > > To: harryproa@...
> > > Sent: Wednesday, January 14, 2004 4:29 AM
> > > Subject: [harryproa] Beams to windward hull
> > >
> > >
> > > How strong how light and of what material should the beams be
> > going
> > > to the weather hull on a 16' equal L an 8 ' beam ? I know I
know
> > its
> > > only 16' but thats all the room I have and can afford. I was
> > thinking
> > > of maybe a 16 or 18'' center walkway between the hulls and
two
> > > laminated 2x3s about two to three feet back from each bow
> > connecting
> > > the two hulls at each end. What do you think? To heavy, over
> > kill, or
> > > not strong enough?
> > >
> > > Todd
> > >
> > >
> > >
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