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From: mike senko (no email)
Date: Tue Oct 02 2001 - 08:35:43 EDT
Gene,
Nice explanation until you got to the end. It made a lot of sense and better
than what I had.
However in all of the surfing I have done on sail boats, I believe there are
at least
three dynamics at hand. One is the absence of the bow wave, another is
the loss of resistance from the missing bow wave, and third is the down
ward attitude of the boat (gravity pulling). Wind remaining constant and
waves not big enough to block the sails (BTDT - don't want to do it again!)
And yes, well beyond hull speed (2X + during races). Alas it is only
momentary for us monohullers.
Another realization here: if you can time the crests of the swells, you can
calculate the speed of the waves.
Mike
>
> I'm sure most of us have sailed where there are sizable waves. Have you
> noticed that as you go down the face of a wave your boat speed increases,
> possibly far beyond hull speed? That is simply because you have the
> reverse in play, the front is not supported level, it's in a trough and
> it's sliding down the wave. Hull speed there would only come into play
> once your speed is so great that the wave you're making inside of the big
> wave leaves your boat dropping below level in the back (or the waves
> catches up to you and you end up on the back side of it!)
>
> Did I make any sense or just confuse things?
>
> Gene Gruender
> Rainbow Chaser
>
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