I am building a 21 ft.plywood boat,and I plan to cover it with carbon
fiber and fiber glass,is this a good idea or bad,and I plan to use carbon
fiber and fiber glass for the tanks,can someone help with this?
> I am building a 21 ft.plywood boat,and I plan to cover it with carbon
> fiber and fiber glass,is this a good idea or bad,and I plan to use carbon
> fiber and fiber glass for the tanks,can someone help with this?
> Thanks LB4475
Carbon? I hope you're rich. I've used carbon over 3mm ply on double
paddles successfully but I'd hate to pay for sheathing an entire boat in
Email me and I can give you some more info and a few web links to check out.
craig o'donnell ||| author of Cool Mac Sounds
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: > I am building a 21 ft.plywood boat,and I plan to cover it with carbon
: > fiber and fiber glass,is this a good idea or bad,and I plan to use carbon
: > fiber and fiber glass for the tanks,can someone help with this?
: > Thanks LB4475
My experience with carbon fiber has been mixed, I've never actually
used it for a boat, usually on rc airplanes, it's tensile strength is
incredible, but after you put epoxy on it it's sheer strength is bad.
In other words if you pull along with the fiber it is incredibly strong
if you pull or bend the fiber any other way it will break. I would
look carefully at the type of stress on the boat before adding it. Kevlar
reinforced fiber glass might be a better choice? Hope this helps
Carbon fiber is VERY expensive and probably an overkill for your
As for tanks, buy poly tanks. They are vey light, tested & approved,
will last almost forever, are virtually bomb proof, and relatively
I've replaced several owner built fiberglass tanks in the last couple of
years, for a variety of reasons. In addition to the problems they had,
these tanks were all extremely HEAVY.
The last job, which I just finished, involved replacing two 45 gal.
diesel fuel tanks in a coastal cruiser. It took three men, breaking
their backs, to get them out. I easily lifted the new poly tanks in
Good luck on your project.
An atheist doesn't have to be someone who thinks he has a proof that
there can't be a god. He only has to be someone who believes that
the evidence on the God question is at a similar level to the evidence
on the werewolf question. -- John McCarthy
On 16 Aug 1997 11:29:17 -0600, Robert Taylor
> While Kevlar is an expensive fiber, I am surprised it is not
> more used as the outermost layer on the keel and the forward
> portions of the hull below the water line, because of its
> resistance to penetration and abrasion. How many boats lost
> to collision or grounding would still be afloat if they had
> just one layer of Kevlar in these frequently abused portions
> of the hull? If I were building (or having built) a boat with
> FRP hull, I think I would insist on this.
7. carbon fibre
10. Carbon Fiber
12. Carbon Fibre