Re:(about scantlings)

David, I found good scantling directions in several books:

1) Sam Devlin's "Devlin's Boatbuilding" (stitch and glue boats)
2) Reuel Parker's "The New Cold Molded Boatbuilding" (cold molded
boats)
3) George Buehler's "Buehler's Backyard Boatbuilding" (carvel planked
and plywood hulls)

I've read also that MacNaughton's design office publishes a set of
standard scantlings for different construction techniques.

Best, Pippo

--- Inbolger@egroups.com, Julie E Johnson <juliejj@n...> wrote:
> I also have questions about scantlings. The latest Boatbuilder mag
has a
> letter from Ted Brewer regarding whether an engineering degree is
> necessary for boat design. He lists common sources of scantling
> information. Nevin's Rules, Herreshoff's Rules, Lloyd's Rules, ABS
> Rules. A brief search on line didn't give much information useful to
> small boat builder/designers. Anyone got any leads or resources?
> david

I also have questions about scantlings. The latest Boatbuilder mag has a
letter from Ted Brewer regarding whether an engineering degree is
necessary for boat design. He lists common sources of scantling
information. Nevin's Rules, Herreshoff's Rules, Lloyd's Rules, ABS
Rules. A brief search on line didn't give much information useful to
small boat builder/designers. Anyone got any leads or resources?
david

Giuseppe Bianco wrote:

>
>
> Hi all. I've been looking at James Wharram's catamarans designs and
> have been surprised by the lightness of the scantlings. Believe it or
> not, both the Tiki 26 and 30 have 6 mm plywood hulls (covered with FG
> outside). Don't you think this is really marginal? I mean, this is
> the same plywood used to build Bobcat, or Gipsy, as opposed to 8-9
> meters catamarans classified as "ocean cruisers", displacing
> 1500-2000 kg.
> Stitch and glue? Well, the Chebacco is stitch and glue (or tack and
> tape) too, but uses 12 mm plywood. Any thoughts on this? What about
> puncture resistance? A hard grounding on rocks, with such a heavy
> boat capable of doing 15 knots, would certainly mean a hole in the
> hull (actually this is what happened to Bob Begg when he crossed the
> Atlantic on the Tiki 26')...
> Best, Pippo
>
> Bolger rules!!!
> - no cursing
> - stay on topic
> - use punctuation
> - add your comments at the TOP and SIGN your posts
> - add some content: send "thanks!" and "ditto!" posts off-list.

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