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From: jrjrjrouse2000 (no email)
Date: Fri Aug 18 2006 - 22:12:22 EDT
If barnacles would be broken off by the force of a feathering prop,
then you have some mighty soft barnacles in your part of the world.
I have seen props here in Trinidad after sitting only one month in
this nasty horrid water that have looked like huge boulders -- solid
barnacles. No force of a feathering prop would break those suckers
off. Takes a diver with a good strong tool and good muscles. And
what a waste that would be.
Judy
--- In , "Bryan Genez" <svcapella at dot dot dot >
wrote:
>
> On 8/18/06, lynnogden at dot dot dot <lynnogden at dot dot dot > wrote:
> >
> > However, one barnacle in the wrong place can render a
feathering/folding
> > prop inoperable and unuseable:
>
>
> I haven't experienced anything close to this. While barnacles are
quite
> strong, the forces against a feathering prop are stronger (in my
> experience). A barnacle that interfered with the action of a
feathering
> prop would be broken off.
>
> As recently as last year, I had fouling so severe on my prop that
I had a
> diver clean it. I hadn't used the boat until the end of the year,
and the
> Chesapeake barnacles had free rein to grow at will. But prior to
the
> cleaning, the blades rotated properly; the problem was that the
water flow
> across the blades was so turbulent that the prop lost about half
its
> efficiency. It was exactly comparable to the losses experienced
by a
> fixed-blade prop with barnacle growth.
>
> --
> Best,
> Bryan Genez
> "Capella" V40-158
> New Bern, NC
>
>
> [Non-text portions of this message have been removed]
>
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