Next message: Lynn H. Ogden: "Re: [world-cruising] To Fold Or To Feather?"
On 8/18/06, <> 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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