On May 31, 1:22 am, wrote:
On May 30, 11:22 pm, Bruce wrote:





On 30 May 2007 19:52:36 -0700, wrote:

I am determined to have smooth lines on the small Whaler clone I am
thinking of building. If I were to carve the shape of the outside hull
into foam, and then laminate an outside skin in it with resin and
glass, what kind of layup would I use, how many layers, what material?
Any guidelines or educated guesses, tia.

Be a bit more specific.

Do you mean make a mold from foam, laying up a fiberglass skin and
then removing it from the mold?, or

make a foam boat, for want of a better word, and sheath it, inside and
out, with fiberglass?

To calculate thickness of fiberglass you will need to specify the
length and breadth of the hull, how many and where any reinforcement
will be located, the intended use of the boat, anticipated life of the
boat, and probably a number of other specializations that I didn't
mention. Not a trivial task.

Bruce in Bangkok
(brucepaigeatgmaildotcom)

--
Posted via a free Usenet account fromhttp://www.teranews.com

Here is a link to the boat I want to use as a starting point. I would
probably be looking to make my hull very similar to this boat, size,
length, etc.http://cgi.ebay.com/ebaymotors/13-Bo...0QQcmdZViewIte...
I hope the link works. If not, and if you wish you can go to ebay,
type in "Boston Whaler" and look at any of the several 13" Sport
models that show up. I would probably build a flatbottom skimmer type
vehicle and then use foam to build up the tri hulls. I could but
bulkheads in the forms every 12-18 inches and then cover with laminate
of some sort to form a skin. I would leave the foam in the hull, the
floor would be flat and come up in the bow like a scow as is the case
in these whalers too. I imagine they leave the foam in there too. So I
need a laminated skin that would need to support itself over the foam
in maybe 12 X 18 inch surfaces. The tri hulls would be made in this
manner, everything above the floor including the sides and transom,
floor etc, would be made in traditional (heh, seems funny calling S+T
traditional) stitch and tape with Ocoume plywood, resin and cloth.
Thanks for your interest, hope this gives you enough info to get me
pointed in the right direction. I know some of the kayak guys use
methods like this, and I do remember one "bullet proof boat" a few
years back, think it was this group.- Hide quoted text -

- Show quoted text -

Nobody at all? Just need to be pointed in the right direction as to
what materials I need to make a fiberglass skin on a foam. As to
thicknesses and number of laminates I will do the testing, but do I
use biaxial, roving, mat, cloth all or some of the above? I will be
using epoxy as a resin because of the foam blocks I will be starting
off with. Thanks again in advance.