2183[bolger] Re: glass boards in wooden boats
- Feb 1, 2000My 1969 Enterprise racing dinghy, a Jack Holt design, has a wooden
centerboard. It is made out of marine ply and definitely has positive
buoyancy. This is offset by a grip that consists of what looks like a pair
of rubber hoses (perhaps old bicycle tires) screwed down so that they grip
the board just enough so that it does not pop back up. Upwind, the
combination of leeway and the rubber grips holds the board down.
Downwind, when the boat starts to come up on plane the board will lift
about half way up due to the lack of leeward pressure and the speed of the
boat. That is ok as the boat is much faster with the board raised anyway.
The biggest problem is that the board is susceptible to breakage. I think
that it is just strong enough to stand on to right a capsized craft. I had
occasion to do this last August in Wychmere Harbor on Cape Cod. The mast
was stuck in the mud and the board held me ok. I have broken two boards
since 1969, but I think that would be expected on a craft this old.
Peter Vanderwaart wrote:
> My Stuart-built Mariner had a FG centerboard. No problems.
> Given a satisfactory way to build one, an FG board should work well. It
> would be heavy enought to do without lead inserts - a great convenience
> in the building. If you don't have a wooden core, I see no reason to
> use epoxy instead of polyester.
> The problem with using wood or, more especially, foam as a core is that
> the board may turn out to have positive buoyancy.
> There was an article in the Catboat Bulletin some years ago by a man
> who made a new centerboard for his Marshall catboat using an aluminum
> core (which was quite flexible), covered by FG. I wonder if there is
> some other possibility in the stacks at Home Depot. Perhaps some sort
> waterproof panel material used behind tile walls in bathrooms or under
> showers could be used as a core material.
> GET A NEXTCARD VISA, in 30 seconds! Get rates
> as low as 0.0% Intro APR and no hidden fees.
> Apply NOW!
> -- 20 megs of disk space in your group's Document Vault
> -- http://www.egroups.com/docvault/bolger/?m=1
- << Previous post in topic Next post in topic >>