[Rhodes22-list] Politics on the list.

Sprynet Mail lipton at sprynet.com
Mon Nov 24 20:34:17 EST 2003


The discussion piqued my interest and I looked up the subject
in "The Symmetry of Sailing".

At low speeds the drag force on the hull is primarily due
to the cumulative effect of the fluid
flow from the layer "attached" to the layer at rest with respect to
the body of water.  That means that to a large extent the surface drag
force is due to interlayer forces in the water itself and the surface finish
of the boat has a minimal effect.  The drag is primarily a function of the
viscosity of the fluid.  The transition occurs in about 2mm.

At higher speeds the flow begins to separate from the hull surface and
form a significant wake.  This wake reduces the pressure on the back
end of the hull and the resulting pressure differential produces additional
drag. The flow separation will occur earlier on a rough
surface than a smooth one.  Earlier separation means a wider wake and
more drag.

I am sure this is no help in picking a hull paint but if you plan to sail
with no wind
you don't need a smooth hull.

Ron Lipton
----- Original Message -----
From: "Michael Meltzer" <mjm at michaelmeltzer.com>
To: "The Rhodes 22 mail list" <rhodes22-list at rhodes22.org>
Sent: Monday, November 24, 2003 6:22 PM
Subject: Re: [Rhodes22-list] Politics on the list.


> here's your  dilemma peter, assuming you ment vc17, will not work for
drysail(the copper oxidizes), only fresh water and you would
> have to sand blast with walnut shells to prep, EPA will hate you for that.
Second dilemma, if the list was to become a replacement
> for people to use as a "boating" manual, with the expirations that people
will save them the time to research the answer as an
> unpaid lackey. Some people do view a list that way, give me my information
and that's it. On the other hand,  No one would bother to
> show up, people who know the answers would get little out of it.. Manuals
are boring and work is work.. Much prefer the model
> answering question while socializing with each other. Kind of like hang
out at a bar, even rummy know something about that :-)
>
>
> As west says:
> Thin Film Paints with Teflon
> Teflon additive drastically cuts surface friction and the thin film, with
its aggressive solvents, dries quickly, so multiple coats
> can be applied in the same day. It provides a hard, smooth surface with
excellent durability, can be burnished to create an
> extremely low-friction hull surface and there?s no thick buildup to remove
when recoating. On the down side, they are incompatible
> with most other finishes, require frequent recoating because they are thin
and gradually lose effectiveness out of water.
>
> MJM
>
> BTW peter I was trying to pick on you, insult or get in a heated debate,
just happened you were the  "staking horse" for that side
> of the issue.
>
>
> ----- Original Message -----
> From: "Peter Thorn" <pthorn at nc.rr.com>
> To: "The Rhodes 22 mail list" <rhodes22-list at rhodes22.org>
> Sent: Monday, November 24, 2003 3:09 PM
> Subject: Re: [Rhodes22-list] Politics on the list.
>
>
> > Gang,
> >
> > Mark Kaynor has it right, as far as I'm concerned.  Let's hear more
about
> > boats and sailing.
> >
> > I've got an '84 fixer upper R22 sitting on shoring supports in my side
yard
> > waiting patiently for  a "make-over".  So far, I only managed to demo
the
> > interior down to bare hull.  I expect the "Phoenix" is going to be a
long
> > project.
> >
> > Does anyone out there drysail?  Has anyone tried Interlux Performance
Epoxy
> > with teflon bottom paint?
> >
> > PT
> > s/v Phoenix
> >
> >
> > ----- Original Message -----
> > From: "Mark Kaynor" <mark at kaynor.org>
> > To: <sanderico at earthlink.net>; "The Rhodes 22 mail list"
> > <rhodes22-list at rhodes22.org>
> > Sent: Monday, November 24, 2003 2:20 PM
> > Subject: RE: [Rhodes22-list] Politics on the list.
> >
> >
> > > Rik,
> > >
> > > Good points. And I agree, for the most part.
> > >
> > > For me, however, it's more of a signal-to-noise issue than it is about
any
> > > particular political (or whatever) viewpoint. I already have to deal
with
> > an
> > > ever increasing amount of unsolicited email, and when the list
contains
> > way
> > > more "noise" than "signal", I become tempted to sign off. My wife quit
the
> > > list shortly after joining because there was so much off-topic
discussion.
> > > I've been able to hang in here so far - heck, I even enjoy it
sometimes,
> > to
> > > be perfectly honest. Nevertheless, my primary interest here is the
> > exchange
> > > of info about our boats, and when that's either lacking or getting
drowned
> > > in the noise, the list becomes less valuable to me.
> > >
> > > Mark Kaynor
> > >
> > > -----Original Message-----
> > > From: rhodes22-list-bounces at rhodes22.org
> > > [mailto:rhodes22-list-bounces at rhodes22.org]On Behalf Of Rik Sandberg
> > > Sent: Monday, November 24, 2003 2:24 PM
> > > To: The Rhodes 22 mail list
> > > Subject: Re: [Rhodes22-list] Politics on the list.
> > >
> > >
> > > To all on the Rhodes list,
> > >
> > > We've all been here, done this, most of us more than once.
> > >
> > > To those who would be the Topic Police, I would point you to the
Rhodes
> > List
> > > Charter. Michael will probably post a link to it any minute now. When
you
> > > get
> > > to the part where it says "any topics of interest to Rhodes sailors",
you
> > > will have found the key words. You can (and just might) say that I may
be
> > > out
> > > of place here, being merely a former owner now, but most of the reason
I
> > > still hang out here is because this list doesn't have all of the
stuffy
> > boat
> > > topic only related rules that are found on most lists. We actually get
to
> > do
> > > something besides answer the same old boat questions over and over
when we
> > > come here. This makes this list much more interesting and fun to hang
out
> > > at,
> > > than most.
> > >
> > > I do agree with Rummy that it would be good to be careful that our
posts
> > are
> > > not hurtful. But then again, Some people's feelings seem to get hurt
> > overly
> > > easily. Let's be real here, for every "Democrat" joke that's ever been
> > > posted
> > > here, there one just like it with "Republican" in the punch line. It's
> > > politics, if you didn't laugh at it, you would surely have to cry. If
you
> > > are
> > > going to take all this stuff seriously, you're in for a life full of
hurt
> > > feelings.
> > >
> > > Rik Sandberg
> > > S/V Happy Little Girls 2 - PS Flicka
> > > Formerly, S/V Country Rhodes - R 22
> > >
> > >
> > > On 11/24/2003 11:53 am, you wrote:
> > > > Here, here, Rummy.
> > > >
> > > > People who have things to say or relay that do not pertain to the
title
> > of
> > > > this list (Rhodes22), should take it elsewhere.  Common curtesy goes
a
> > > long
> > > > way to keeping people interested in any exchange, even on the
Internet.
> > > >
> > > > Fred
> > > >
> > > > In a message dated 11/24/03 12:20:40 PM Eastern Standard Time,
> > > >
> > > > R22RumRunner at aol.com writes:
> > > > > I have expressed my political views on the list previously (I have
> > none)
> > > > > so
> > > > >
> > > > > I'm not offended by these jokes or cheap shots or whatever you
want to
> > > > > call them. That being said, I feal that the recent flurry of jokes
are
> > > > > not only flamming, but unkind.
> > > > > I really wish you people would do this kind of stuff OFF the list.
> > > > >
> > > > > 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
> >
> > __________________________________________________
> > Use Rhodes22-list at rhodes22.org, Help? www.rhodes22.org/list
> >
> >
>
> __________________________________________________
> Use Rhodes22-list at rhodes22.org, Help? www.rhodes22.org/list



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