Jib and Genoa Sizes Shipped from the Factory

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K

Kevin Keen

All: In preparing for the spring/summer sailing season, I measured the LP/J for my jib on Ariel and found it to be 115%. Was shipping a 115% Genoa instead of a working jib standard from the factory (Ulmer Kolus [UK] sails) in 1985? - Kevin.
 
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John Pollitt

Boat info

If you go to the menu at the top of the page and click on Boat Information, then 23 on the left hand column, you'll see the specs for your boat. Fair winds, John
 
Apr 19, 1999
1,670
Pearson Wanderer Titusville, Florida
110 jib is stock

If your jib is the one that was originally shipped with the boat, it's probably stretched out a bit. Peter H23 "Raven"
 
K

Kevin Keen

And my answer is ...

Peter: I think you answered my question. The 110% Genoa has stretched to a 115% Genoa. But the LP measurement was exactly 118 inches. Could the stretch be exactly 15 inches? John: The I and J specifications of 26 feet 0 inches and 8 feet 6 inches, respectively. A jib fitting these designs is called a working jib. Assuming a triangular sail shape, the sail area is 110.5 sq feet for this jib. The P and E dimensions for the mainsail are 25 feet 8 inches and 9 feet 9 inches, respectively. Again, assuming a triangular shape, the mainsail area is 125 sq feet for a total sail area of 235.5 as in the brochure. However, my 115% genoa has a sail area of 135.5 so my boat has a total sail area of 260.5 sq feet when underway. (See below) Bill: And my answer is: 1. The SA/D for my boat is 22.9 (very fast) compared to an SA/D of 20.7 (fast) for working jib only. 2. The center of effort (CE) for my sail plan is farther forward than that of the sail plan with the working jib. And my question is: Did anyone ever order a working jib for their H23? Cheers! Kevin.
 
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Crazy Dave Condon

110%

The Hunter 23 when built was shipped with a working 110 jib for the record. crazy dave condon
 
K

Kevin Keen

No such thing as a 110% working jib

Dave: Call me crazy ;-), but a headsail with an LP/J of 100% is a working jib while a headsail with an LP/J of 110% is a genoa. All: Has anyone seen a brochure or other facsimile of a Hunter 23 with the CLR and sail plan CE? I just did one for my 115% genoa in case anyone is interested. I could scan and post it. - Kevin.
 
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Crazy Dave Condon

various responses

It is intereisting to hear alot of folks refer to a 110 as a genoa and/or working jib. If the jib goes over 100% then it is a genoa. You are correct about terminology but I find alot of people still do not know the correct wording but do associate jibs at 90-110% as a working jib alot of times over the past 20 plus years I have been in the buisness. crazy dave
 
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Kevin Keen

For Dave: 90-110% working jibs

Dave: I think headsails 90-110% LP/J get called working jibs because they are used ("worked") on sailboats most of the time, with the 130% and 150% genoas being used in light wind conditions which for most people are less frequent. I note from the Hunterowners Chandlery that Doyle Sailmakers does not offer a 110% headsail replacement for the H23 but rather a 100%. I am checking with UK Sailmakers. Will keep all posted. Any interest in me posting the locations of the geometric CE and CLR for the H23? - Kevin.
 
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