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Lapstrake dinghy made from foam ????

 
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Dave Cannell

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Since: Jun 22, 2003
Posts: 30



(Msg. 16) Posted: Wed Jun 25, 2003 12:51 am
Post subject: Re: Lapstrake dinghy made from foam ???? [Login to view extended thread Info.]
Archived from groups: rec>boats>building (more info?)

I'd be interested in the ones on steel boats and the John Leather books.

Thanks, Dave Cannell
--
In article <3ef8abb1$0$76133$edfadb0f@dread11.news.tele.dk>, P.C. wrote:
 > Hi
 >
 > "Al" <Almann.TakeThisOut@mygaff.fsnet.co.ukdontspamme> skrev i en meddelelse
 > news:bda1j7$ma0$1@newsg2.svr.pol.co.uk...
  >> P.c., on a total tangent, the current edition of woodenboat magazine
  >> contains an article about a V bottom built onto a flat skiff using a method
  >> that looks similar to what you propose. You might like to hunt down a copy.
  >> Or find someone to scan it and mail it to you (I can't, the computer with
  >> the scanner attached is down at the moment).
  >>
 >
 > I wouldn't mind 3D-H being used for building boats, acturly that is what it is
 > develobed for. But building structures , vessel fuselages and all scale 3D
 > formwork, is there if you ask it in an assembly framework. If you then add
 > panels there are a honeycomb structure m With buildings the feets is alway's
 > well on ground when all forces are distribuated, in a self carrying framework,
 > so offcaurse boats is an option with a modern 2D building method, that produce
 > nice round 3D things from sheet material Wink)
 >
 > Now as I been promoting the methods for documented years , I wonder if this
 > realy is 3D-H and if so, if the inventers name is published.
 >
 > P.C.
 > Have a nice day.
 > The Longboat would anyway be better, still that you can produce in chip wood ,an
 > foam filled hull leaving the paneling leaking no problem, wonder of any Roman
 > bookstore ever seen other mahogony than interiours , Anyway this is what I
 > realy think 3D-H shuld produce ;
<font color=purple> > <a style='text-decoration: underline;' href="http://groups.yahoo.com/group/structure-testbench/</font" target="_blank">http://groups.yahoo.com/group/structure-testbench/</font</a>>
 >
 > I love mahogony just check some furnitures I once produced ;
<font color=purple> > <a style='text-decoration: underline;' href="http://www.designcommunity.com/scrapbook/2498.html</font" target="_blank">http://www.designcommunity.com/scrapbook/2498.html</font</a>>
 >
 > Today you can ask all the claims about a center in a city, and have everything
 > formes just perfect. I stopped boat design years ago and acturly do no
 > boatbuilding at all, but develobing new Digital building methods, funny if a
 > boat will be the first object produced with an idear that need a computer to
 > even be an option, as almost impossible without. Buuuut I am quite sure, that
 > once again, somthing not at all a true 3D-H shell, is what is there Wink)
 >
 > P.C.
 >
 >
 ><!-- ~MESSAGE_AFTER~ -->

 >> Stay informed about: Lapstrake dinghy made from foam ???? 
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Al5

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Since: Jun 22, 2003
Posts: 29



(Msg. 17) Posted: Wed Jun 25, 2003 12:56 am
Post subject: Re: Lapstrake dinghy made from foam ???? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

 > Now as I been promoting the methods for documented years , I wonder if
this
 > realy is 3D-H and if so, if the inventers name is published.

I said similar. See if you can find someone to scan you a copy.

Al<!-- ~MESSAGE_AFTER~ -->

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Rick Tyler

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Since: Jun 23, 2003
Posts: 36



(Msg. 18) Posted: Wed Jun 25, 2003 4:10 am
Post subject: Re: Lapstrake dinghy made from foam ???? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

On Mon, 23 Jun 2003 20:12:10 GMT, RichH <RhmpL33.TakeThisOut@NOSPAM.net> wrote:

 >Why lapstrake? I want the boat to be a 'modernized' reproduction of the
 >BEAUTIFUL whitehall/wherries of the 1890s.... I may be just a romantic;
 >but, a smooth hull wherry would look 'awful'.

On the contrary: <a style='text-decoration: underline;' href="http://www.flounderbay.com/boatkits.htm#coswherry." target="_blank">http://www.flounderbay.com/boatkits.htm#coswherry.</a>

 >Want I definitely dont want is a 17-18 ft. boat that weighs several
 >hundred pounds (I can always add 'ballast' for rowing momentum in rough
 >water). Just like you dont put a surfboard between two chairs then jump
 >in the middle, such a lightweight foam cored boat would have 'special
 >strength considerations' when using, landing, etc.

By the time you build out of FRP you might find your weight savings
are not that substantial. Have you checked out Ian Oughtred's
designs?

- Rick Tyler<!-- ~MESSAGE_AFTER~ -->
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stevej

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Since: Oct 19, 2003
Posts: 9



(Msg. 19) Posted: Sun Jun 29, 2003 11:31 pm
Post subject: Re: Lapstrake dinghy made from foam ???? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

I always assumed that one advantage to lapstrake is that the hull is
drier, that is, water does not travel up and over the sheer as easily.
This allows the boat to have slightly less freeboard and as a result,
less weight (mabey) and less windage.
SteveJ

Al wrote:
 > RichH <RhmpL33.DeleteThis@NOSPAM.net> wrote in message
 > news:3EF4F8D1.9070809@NOSPAM.net...
 >
 > is the lapstrake design aesthetic or because of an engineering reason? My
 > understanding was that in FRP construction, mock lapstrake represented extra
 > weight and reduced strength for a given weight.
 >
 > I'm curious about the lapstrake, is there something I've missed?
 >
 > thanks
 >
 > Al
 >
 ><!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: Lapstrake dinghy made from foam ???? 
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