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 Catalina/Capri 25/250 Sailor's Forums
 Catalina 250 Specific Forum
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johnsonp
Admiral

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USA
606 Posts
Initially Posted - 02/12/2005 :  00:50:17  Show Profile
Found a sail in battery compartment.
Must be my lucky day.
Tag says SAIL.....CAT 25R/F GENOA
LUFF.....28.26'
LEECH....26.39'
FOOT.....17.30'
AREA.....240 SQFT
WIEGHT...4 OZ
Anyone know what size Genoa is this?
paulj
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Arlyn Stewart
Master Marine Consultant

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USA
2980 Posts
Response Posted - 02/12/2005 :  08:09:54  Show Profile  Visit Arlyn Stewart's Homepage
Paul, there are several on this site who can answer your question, you might however post it to the general section for more consideration.

I've never played with sail size numbers but that seems like one huge sail (foot wise). J is only 9 feet on a c250 and you have a foot almost double that so I'm thinking you have a sail that would be near 185% on a c250...but again, I don't know much about sail measurments so I could be wrong.

At any rate, the main on a 250 is 135 sq ft and a 100% foresail is 130 sq feet for a total of 265 and the area of that genoa alone is 240, within 25 feet of the total of both main and jib.
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aeckhart
Master Marine Consultant

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USA
1709 Posts
Response Posted - 02/12/2005 :  09:51:01  Show Profile  Visit aeckhart's Homepage
The 4 oz weight is a light air sail. Does it have a luff tape and UV cloth on attached? I'd guess at least a 150 furler.

Al
GALLIVANT #5801
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Steve Milby
Past Commodore

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USA
5895 Posts
Response Posted - 02/12/2005 :  10:45:26  Show Profile
It sounds like a 150 or 155% genoa for a standard rig Catalina 25.
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dlucier
Master Marine Consultant

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Virgin Islands (United Kingdom)
7583 Posts
Response Posted - 02/12/2005 :  13:25:16  Show Profile
Paul,

The R/F probably means "roller furling" which would explain the longer foot since roller furling sails have a higher clew, hence a longer foot measurement.

To find the "percentage" of this genoa, first find the luff perpendicular measurement by measuring along a line from the clew to the luff that is perpendicular to the luff.



Take this LP measurement and divide it by your boats J dimension and it will give you the percentage of the sail.

Example: If your LP = 15' and your J dimension = 10' then 15/10=1.5 or a 150% genoa.

or if your sail's LP = 11, then 11/10 = 1.1 or 110 percent.
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aeckhart
Master Marine Consultant

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USA
1709 Posts
Response Posted - 02/12/2005 :  16:06:34  Show Profile  Visit aeckhart's Homepage
Don,

Thanks for the info. I always wondered how they figured that sail area percentile.

Al
GALLIVANT #5801
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dlucier
Master Marine Consultant

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Virgin Islands (United Kingdom)
7583 Posts
Response Posted - 02/13/2005 :  09:54:28  Show Profile
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by aeckhart</i>
<br />Don,

Thanks for the info. I always wondered how they figured that sail area percentile.

<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">

You're welcome!
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johnsonp
Admiral

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USA
606 Posts
Response Posted - 02/16/2005 :  12:56:07  Show Profile
Top drawer.........
Thanks Don. I looked all over for this info.
Thanks to everybody else.
paulj
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.