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Old Oct 12, 2007, 01:41 PM
wiredconcepts is offline
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Foam Boat Plans?????

I keep seeing people every once and a while post pics of a foam boat they built. Do plans exist for these or are people just making them up as they go? I want to build something out of depron or similar and glass it. Where can I find plans if they do exist? Thanks in advance for the help!

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Old Oct 12, 2007, 02:10 PM
Umi_Ryuzuki is offline
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Pretty much any plan will do, it is just a matter of the materials you use to assemble the parts.

Scroll down and look for theos "pesky free plans...."
Old Oct 12, 2007, 02:13 PM
CG Bob is offline
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Some are made up as they go; others are built from plans purchased from a vendor. Some of the vendores are:
Radio Control Boat Modeler
Taubman Plans is part of Loyalhanna Dockyard, and might have plans that could be used.

The Maxam fast electric is made with cardboard folded to shape and covered in fiberglass; might be a good one to start with. The Stepped Hydro Pool Racer uses thicker insulating foam for the hull.
Old Oct 13, 2007, 02:30 PM
towboatjoe is offline
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On this link about half way down the page is River Bill's technique of using foam.

Regardless of what technique you use remember to use a barrier between the foam and fiberglass resin for the resin will desove the foam. most modelers use a decopage type covering using newspaper and mixture of water and white glue.

Extruded foam used in insulating homes is great and scraps can usually be picked up at construction sites for free. Stay away from the beaded type of foam. It doesn't sand well and just likes to flake off in little beads.
Old Oct 13, 2007, 03:07 PM
der kapitan is offline
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"day ain't over yet-"
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I use urethane foam, available at places dealing in refrigeration insulation. It's totally impervious to most solvents, and can be fiberglassed over without any barrier.

---and it sands nicely.
Old Oct 16, 2007, 06:59 PM
Shaun Hendricks is offline
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3 Blades to the Wind
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Surf board blanks...

made for fiberglassing and can be sanded to near perfection. Abundant on the web.
Old Oct 20, 2007, 12:57 PM
ScottOram is offline
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AME2(AW) Scott D. Oram, USN
I used Insulation Foam in a can. Rough shaped it as I sprayed, then carved and sanded it to shape. Laid the fiberglass resin and matte right on it.

See pictures here:
Old Nov 14, 2015, 06:43 PM
circuitfxr is offline
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Resistance is futile
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I used standard plans made for a wood boat.
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Latest blog entry: New Hobby room ready for use!
Old Nov 16, 2015, 04:51 AM
mfr02 is offline
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The plans, whatever their originally intended build material, tell you what shape the outside of the boat should be. What you build it from is up to you. The only bit that will be seen in use is the paint on the outside, the structure of the boat just keeps the paint the right shape.

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