[Rhodes22-list] A question of size and shape (sails ye salty dogs sails)

Rick sloopblueheron at gmail.com
Mon Jan 11 19:19:17 EST 2010 

Rummy,

No way can boom vangs be the next topic.  They only occur in summer during
thunder storms.

Rick

On Mon, Jan 11, 2010 at 7:08 PM, <r22rumrunner at aol.com> wrote:

> John,
> This topic has been discussed many times on this list. I have the IMF so
> bending the mast is not an option for me. The only caution that has ever
> been
>  mentioned is to keep in mind the pressure you are exerting not only on the
> mast  and the stays, but also the hull structure itself. Is getting another
> 1/2 knott  of speed worth ripping your boat apart for? If it is, go for it.
> If you want to  increase your hull speed without bending the mast, try
> ordering one of Stanley's  new main sail designs for the standard mast with
> a
> little extra cloth thrown  in.
> Since it is winter, I guess the next topic to come up will be the boom
> vang.
>
> Rummy
>
>
> In a message dated 1/11/2010 1:18:10 P.M. Eastern Standard Time,
> jsbudda at verizon.net writes:
>
>
> Lee,
>
> This is a pic. of the backstay adjuster on my  boat
> http://old.nabble.com/file/p27115052/DSCF0299.jpg
> Tension on the  line applies a transverse tension on the back stays drawing
> them together  which essentially shortens their length. The harder you pull
> the more you  tighten the forestay. Consider a similar device on the
> forward
> baby stays,  tension on that line should apply a slight bend to the center
> of
> the mast  flattening the main or so the theory goes. I have a standard main
> which  will is bendable (confirmed by experiment last summer) The question
> is
> how  much initial rake do I want when the boat is at rest and how much bend
> is  needed to effectively flatten the main?
>
> Thanks
> John S
>
> Leland wrote:
> >
> > Ron/John (sounds like a surf  shop),
> >
> > In my mind I think I would be just fine with a 150 or  even a 135.  On a
> > close reach in placid water I can usually fill  the 175 with about 3.5
> > knots of wind.  In 3.5 to 5.0 knots of  wind the big Genoa works well.
> The
> > sail is fun and looks pretty  in 5 to 7 knots without excessive heel but
> I
> > can go faster if I reef  it a little.  Much of the time I've got the 175
> > reefed to a 150  or 135 or less.
> >
> > However every time I sail with the 175 when  it's the right conditions I
> > swear I'll buy another one when the time  comes to replace it.  I may not
> > use the full 175 often, but when  I can use it I want to use it.  I
> > wouldn't want to give up my  traveler, adjustable sheet tracks/leads,
> > centerboard, or reefable  main; and I often don't use them either.  That
> > 175 can provide a  lot of power for our light boats and can be very
> useful
> > with a whisker  pole on a broad reach or run.
> >
> > I agree that a smaller sail  won't need to be reefed as often and will
> have
> > better shape when  reefed.  If most of your sailing is in winds of 8
> knots
> > or more  it probably makes sense to go with a smaller Genoa.  A lot of my
> >  sailing is in winds of less than 8 knots.
> >
> > With the sheets ran  outside the shrouds on a close reach with the board
> > down and the boom  up, in most conditions I think I would generally want
> to
> > reef a 150  before hitting 9 knots of wind.
> >
> > I've never played with  mast rake.  I've seen a lot of
> performance-oriented
> > boats with  single adjustable backstays that allow you to change the rake
> > for  upwind or downwind sailing.  How would an adjustable baby stay be
> >  installed on our boats?  If you devised something to pull down on  the
> > lines connecting the two backstays would it have any  effect?
> >
> > Good luck!
> >
> > Lee
> > 1986  Rhodes22  At Ease
> > Kent Island, MD
> >
> >
> >  Ronald Lipton-3 wrote:
> >>
> >> Hi John,
> >>
> >>    I switched from a 175 to a 150 I purchased from  Stand last year.
> >> I also switched from the GBI Furler to the  CDI.  The GBI furler
> performed
> >> well, but I wanted the option  to lower or change the foresail, and the
> >> CDI furler allows that.
> >>
> >>   I am very happy with the 150.  I do  not need to furl as early and it
> >> seems
> >> to be well  suited to conditions on Lake Michigan more often than the
> >>  175.  It also retains it's shape a bit better when partially  furled.
> In
> >> light
> >> breezes, when you might want  more sail area the 175 does not perform
> >> well due to the heavy  cloth.   I think the 150 is a bit more suited
> than
> >>  the
> >> 175.  I would thing the 135 would be a bit too  small.
> >>
> >> Ron
> >>
> >>
> >>
> >> John Shulick wrote:
> >>>  Hello to the  forum,
> >>>
> >>>   After extensive  negotiations (groveling, begging, etc...) with the
> >>>  Admiral
> >>> I have been authorized (allowed) to replace my blown  out 35+yrs old
> 175
> >>> genoa and GB furler with new equipment.  Over the last 2 yrs. sailing
> at
> >>> Kinzua has shown me the 175 is  really not suited for the conditions I
> >>> have,
> >>>  namely wind gusts that can double in velocity usually accompanied by
> 90*
> >>> or
> >>> more shifts in direction. I never fully  unfurl the genoa unless the
> wind
> >>> is
> >>> so light  that the sail can't or won't (not sure which) fill properly.
> My
> >>> research into the archives show the older rhodes came with  150 genoas
> >>> and my
> >>> 71 certainly falls in that  group. My question to the forum is at what
> >>> approximate wind  speed would you begin reefing in a 150 genoa and
> would
> >>>  a
> >>> 135 or less be even better for the conditions I'm facing.  Also I'm
> >>> looking
> >>> for a furler and would  appreciate any info on which ones offer more
> sail
> >>> tuning  options. A final item of thought, has anyone out there in
> rhodes
> >>> land
> >>> experimented with mast rake and/or  mast bending by use of baby stay
> >>> tension
> >>> to  alter mainsail shape and performance.
> >>>
> >>> All  comments are appreciated
> >>> Thanks in advance
> >>>  John Shulick
> >>>
> >>>
> >>
> >> __________________________________________________
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> >>
> >
> >
>
> --
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