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Catalina/Capri 25/250 Sailor's Forums

Catalina 250 Specific Forum

head sail measurements

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lebnene
Deckhand

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USA
7 Posts

Initially Posted - 03/23/2009 : 12:32:10

Does anyone know off hand what are the minimum and maximum measurements for a head sail for Catalina 250? Thanks in advance!

C250 WK

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John Russell
Master Marine Consultant

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USA
3444 Posts

Response Posted - 03/23/2009 : 13:58:57

The luff measurement depends on the furler to some extent. I think mine, with a CDI furler, allows for a luff of 27'8". -- at least that's the number that is stuck in my head. The rest of the headsail dimensions are highly variable. The typical sail is a 110% jib and that figure is based on a measurement made on a line that is perpendicular to the luff of the headsail that extends to the clew. That measurement is expressed as a percentage the distance from the bow of the boat to the mast at the deck known as the "J" measurement. Since "J" on a C250 is a fixed distance of 9', a 110% jib would have a luff perpendicular (LP) of 9.9 feet. A 135% genoa would have an LP of 12.15ft, a 150% would have an LP of 13.5ft. The luff remains constant.

There are also other variables that could effect the leech such as a "deck sweeper" or a higher clew.

Then there are other headsails such as a symmetrical or asymmetrical spinnaker.

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lebnene
Deckhand

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USA
7 Posts

Response Posted - 03/24/2009 : 11:27:17

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by John Russell
 The luff measurement depends on the furler to some extent. I think mine, with a CDI furler, allows for a luff of 27'8". -- at least that's the number that is stuck in my head. The rest of the headsail dimensions are highly variable. The typical sail is a 110% jib and that figure is based on a measurement made on a line that is perpendicular to the luff of the headsail that extends to the clew. That measurement is expressed as a percentage the distance from the bow of the boat to the mast at the deck known as the "J" measurement. Since "J" on a C250 is a fixed distance of 9', a 110% jib would have a luff perpendicular (LP) of 9.9 feet. A 135% genoa would have an LP of 12.15ft, a 150% would have an LP of 13.5ft. The luff remains constant.

There are also other variables that could effect the leech such as a "deck sweeper" or a higher clew.

Then there are other headsails such as a symmetrical or asymmetrical spinnaker.
<hr height="1" noshade id="quote"></blockquote id="quote">

Thanks... I am looking for the luff then :)

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dmpilc
Master Marine Consultant

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USA
4593 Posts

Response Posted - 03/24/2009 : 12:19:33

According to the C250 manual, the "I" dimension is 29 ft., so your maximum luff length will be a bit shorter, say 28'6" or 8". With a furler, subtract another foot, and that gets you to john's 27'8" number.
The Sail Warehouse lists their C250 135 furling genoa luff at 28.18'. hope that helps.

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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.