Subject: Re: [harryproa] Re: Visionarry shunting
From: arttuheinonen@heinoset.net
Date: 11/20/2010, 3:11 AM
To: harryproa@yahoogroups.com.au
Reply-to:
harryproa@yahoogroups.com.au

 

Yes four boards in total. In the video we had both rudders down and some
board because the other had snapped. Last summer we realized that the
daggerboards are helpful when sailing under main only. Otherwise we do
not really need them. The boat can be shunted without daggerboards. I
guess this has something to do with the placement of rudders, they are
close to the bows on our boat. We usully keep both rudders down, adjust
the balance with the rear one if going upwind and steer with the rear
rudder sailing downwind.
Daggerboards add safety and help control the boat in bad seas because
they make steering easier, the boat is easier to control. This has
nothing to do with rig type, it is about hydrodynamics. There is no
rocker you see.

> I made an argument for least amount of; and balance for shunting craft
on the other group Sloop vs Schooner. Showing what I thought a shunting
crafts helm balance should and shouldn't be. So you have four boards
total. And only use two at a time. Sounds like a spiral up not down.
>
> I posted it here under (forces at play)for anyone to pick it apart to
school me. Granted its a sloop vs schooner, not the easy rig. But in
principal still the same.
>
> Todd
>
> --- In harryproa@yahoogroups.com.au, arttuheinonen@... wrote:
> >
> > No. It was broken, so there was no other daggerboard. It broke when
I forgot it down and accelerated to 16-17 knots and the sails were
sheeted too tight.
> >
> >
> > Arto Hakkarainen [ahakkara@...] kirjoitti:
> > > Thanks for the video. I see you raised one daggerboard when
starting to shunt. Was the other dagger board already lowered?
> > >  
> > > Arto
> > >
> > > --- On Thu, 11/18/10, proabuilder <arttuheinonen@...> wrote:
> > >
> > >
> > > From: proabuilder <arttuheinonen@...>
> > > Subject: [harryproa] Visionarry shunting
> > > To: harryproa@yahoogroups.com.au
> > > Date: Thursday, November 18, 2010, 6:58 PM
> > >
> > >
> > >  
> > >
> > >
> > >
> > > Hi
> > >
> > > Visionarry shunting on video to get some idea of shunting.
> > > Sorry about bad quality. We were going downwind. If we were going
upwind there would have been more action.
> > >
> > > http://www.youtube.com/watch?v=-URL2jyXiAU
> > >
> > > Regards,
> > >
> > > Arttu
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> >
>
>

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