[Rhodes22-list] A question of size and shape (sails ye salty dogs sails)
r22rumrunner at aol.com
r22rumrunner at aol.com
Mon Jan 11 19:08:12 EST 2010
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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