[Rhodes22-list] A question of size and shape (sails ye salty dogs sails)
John Shulick
jsbudda at verizon.net
Mon Jan 11 20:30:46 EST 2010
Rummy,
I still have to re finish my boat above the rub rail when I do so I might
sand with 60 grit and bond a couple of sheets of new glass over the deck and
cabin and shoot new gel coat over that. Properly done that's the equivalent
of 1/2" of plywood reinforcement. I also found a company that sells the
molds for re doing the original checking on the non skid areas. The hull
deck joint is also on the to do list. The interior redesign has fixed the
port side deformation by the addition of the port side bulkhead. I had no
problems with the compression arch taking the loads applied and while I lack
your experience in pushing the outer edges of rhodes performance, Kinzua
currently pushes it plenty hard for me. I will admit to liking the thought
of having both the oldest and the fastest rhodes on the water and I have
always liked to tinker with things. I probably have 5 or so yrs of putzing
to do before I'll be satisfied with this project.
John S
R22RumRunner 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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> go
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>>>
>>>
>>
>>
>
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