Subject: Re: [harryproa] Blind Date spray questions
From: arttuheinonen@heinoset.net
Date: 8/20/2009, 4:12 PM
To: harryproa@yahoogroups.com.au
Reply-to:
harryproa@yahoogroups.com.au

 

Hi,

I did not find spary from WW-hull to be a problem.
There is buckets of water flying into cokpit occasionally when the WW
bow hits waves deeper, like when luffing in hard wind high waves. On the
reach there is no spray.
RB has different hull shape, there is no rocker and the bows are
piercing water continuosly. Ono hull has rocker as on the Blind date.
When the wind is pushing the ww hull lifts a bit higher even , so the
bow is hardly touching water.
Ono has also flare from the bow. RB has flared hull some way aft of the
bow. So Ono flare does not allow all upward spray to fly across the
hull. I guess this will explain the difference.

Regards,

Arttu


> Hi all,
> I have been hoping that there would be some more explanations of the latest
> Blind Date video, particularly regarding the spray, but haven't seen any, so
> I would like to post some questions?
>
> Where is the wind coming from? Directly off the beam? Forward? Aft?
>
> What part of the ww hull is producing most of the spray that reaches the
> cockpit area? Right at the bow? Amidships? 1/4 of the way back from the bow?
>
> I think Rob suggested that a windward shelf, like in the original Harry,
> might help, but it seems like the shelf was really only prominent amidships.
> Should we consider a "bow shelf" to ww? What would that imply for burying
> the ww bow?
>
> I know, I should complain about spray when a cruising boat hits 15-16 knots,
> but I am firmly in the "feet up, sipping a glass of red wine" speed sailing
> crowd... hmm... maybe that isn't a crowd, but it should be!
>
> Any spray insights from Artu, from your recent cruise?
>
> Thanks,
>
> - Gardner

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