[Rhodes22-list] Sailing suggestion.

David Bradley dwbrad at gmail.com
Thu Apr 20 16:39:27 EDT 2006


Bob, thanks.  I had thought that the hull speed formula assumed an "average"
hull shape, and that one of the factors is the mass below the water line.
By heeling a typical keel boat aren't you moving mass above the water line?

Dave


On 4/19/06, Bob Weber <ruba1811 at hotmail.com> wrote:
>
> Dave, Flat bottom = 18 foot of waterline
> Healed bottom = 19 foot of waterline
> Who Cares?
> The limitation of your maximum speed is based on waterline - Longer boats
> can go faster
> Hull speed = Square root of the wateriine * 1.3 (51/2 kn) flat or 5.7heeled
>
> If you ever see sailors on the lee side of the boat using their weight to
> heel the boat on light wind days that is the principle they are going
> from.
>
> Bob Weber
>
>
> >From: "David Bradley" <dwbrad at gmail.com>
> >Reply-To: The Rhodes 22 mail list <rhodes22-list at rhodes22.org>
> >To: "The Rhodes 22 mail list" <rhodes22-list at rhodes22.org>
> >Subject: Re: [Rhodes22-list] Sailing suggestion.
> >Date: Tue, 18 Apr 2006 23:34:11 +0100
> >
> >Bill, it sure makes sense to me, just in terms of physics.  Flat bottom =
> >less friction.  Buried side = more friction.  Of course, I was a
> marketing
> >major so what the hell do I know about physics?
> >
> >Dave B.
> >
> >
> >On 4/18/06, Peter Thorn <pthorn at nc.rr.com> wrote:
> > >
> > > Nope.  I agree with you Bill.
> > >
> > > PT
> > >
> > > ----- Original Message -----
> > > From: "Bill Effros" <bill at effros.com>
> > > To: "The Rhodes 22 mail list" <rhodes22-list at rhodes22.org>
> > > Sent: Tuesday, April 18, 2006 11:48 AM
> > > Subject: Re: [Rhodes22-list] Sailing suggestion.
> > >
> > >
> > > > Jay believes me, but he may be the only one.
> > > >
> > > > Bill Effros
> > > >
> > > > R22RumRunner at aol.com wrote:
> > > > > Bill,
> > > > > Nobody on this lists believes you. A R22 does not sail fast flat.
> It
> > > > > requires about thirty degrees of heel to get the wind in the sails
> >and
> > > really  get
> > > > > her moving. I'd like to see you sail flat in a 10 mph wind. It can
> >be
> > > done,  but
> > > > > only by the faint of heart.
> > > > >
> > > > > Rummy
> > > > > __________________________________________________
> > > > > Use Rhodes22-list at rhodes22.org, Help? www.rhodes22.org/list
> > > > >
> > > > >
> > > > __________________________________________________
> > > > Use Rhodes22-list at rhodes22.org, Help? www.rhodes22.org/list
> > >
> > > __________________________________________________
> > > Use Rhodes22-list at rhodes22.org, Help? www.rhodes22.org/list
> > >
> >
> >
> >
> >--
> >David Bradley
> >203.253.9973
> >dwbrad at gmail.com
> >__________________________________________________
> >Use Rhodes22-list at rhodes22.org, Help? www.rhodes22.org/list
>
>
> __________________________________________________
> Use Rhodes22-list at rhodes22.org, Help? www.rhodes22.org/list
>



--
David Bradley
203.253.9973
dwbrad at gmail.com


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