Why do we run a jib sheet through a genoa car? - SailNet Community

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Old 04-12-2013
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Why do we run a jib sheet through a genoa car?

OK, it's kind of a slow Friday, so I've been playing that game where you put a search term into Google and compare the number of hits to another search term.

I've only been sailing for a few years, and am almost brand new to Sailnet. Every boat I've sailed on has had a genoa. The people I've sailed with call the sail either the jib or the genoa, but they always call the sheet the "jib sheet" and they always call the car the "genoa car" and Google searches of both the internet overall and just the Sailnet forums confirm this tendency.


Sailnet
"Jib Sheet" 69%
"Genoa Sheet" 31%

"Jib Car" 42%
"Genoa Car" 58%


Internet overall
"Jib Sheet" 59%
"Genoa Sheet" 41%

"Jib Car" 23%
"Genoa Car" 77%



So why do we run a jib sheet through a genoa car?

And why do Sailnetters seem to just in general prefer jib to genoa?
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Old 04-12-2013
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Re: Why do we run a jib sheet through a genoa car?

Jib is a generic term. Genoa is specific to jibs which are larger than 100%. Jibs that are approximately 100% historically were called working jibs. When I started sailing, working jibs had fixed sheet leads, but Genoas were lead to an adjustable track. That track had Genoa cars. That would be my best guess.

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Old 04-12-2013
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Re: Why do we run a jib sheet through a genoa car?

Semantics for the most part. A Jib, to me, is a 100% or less LP headsail. Anything bigger is a genoa.

The car is the car, the headsail sheet goes through it... when it's in the genoa position I suppose its a genoa car... and vice versa.
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Old 04-12-2013
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Re: Why do we run a jib sheet through a genoa car?

. This calls a headsail that overlaps the mainsail a "genoa jib" or genoa for short. I always figured a genoa was a type of jib, so calling its sheets "jib sheets" makes sense. As for the genoa car, does one need a moveable fairlead to adjust the the angle on a non-overlapping jib with a high clew? If not, and they are for the purpose of doing this for genoas, then "genoa car" makes sense.
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Re: Why do we run a jib sheet through a genoa car?

To further expound on Jeff's answer, the GENOA sail may be several different sizes; 120, 135, 155, even 180 % of the foretriangle. These different sizes needed the sheet car located in different positions for the most efficient trim. (And that depends on the height of the clew too!) The JIB usually only needed a fixed location, or on some boats you will see a very short section of track so you can tweak the leech a bit.


And yes, it must be a very slow day!
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Old 04-12-2013
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Re: Why do we run a jib sheet through a genoa car?

Someone will jump in here and correct me, but here is my take;

A genoa is a type of jib sail. Thus the sheets for this sail are referred to as jib sheets.

To be more descriptive, a genoa is an oversized jib. A genoa is also (usually) installed on a roller furler, thereby allowing for the sail to be reefed, by simply rolling it up. Because the foot and leech vary with the size of the genoa, and whether or not it is reefed, and because the angle of apparent wind will have a greater affect on the sailing characteristics of the genoa, it benefits from the use of position-changeable blocks, called cars, more than a simple 90% jib would. Therefore, these cars are referred to as genoa cars.

...works for me.
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Old 04-12-2013
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Re: Why do we run a jib sheet through a genoa car?

geez, I type slow... 5 responses while I was typing my well thought out reply.
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Old 04-12-2013
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Re: Why do we run a jib sheet through a genoa car?

Because a Genoa is a Jib.
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Re: Why do we run a jib sheet through a genoa car?

Quote:
Originally Posted by eherlihy View Post
geez, I type slow... 5 responses while I was typing my well thought out reply.
I think you are right.
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Old 04-12-2013
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Re: Why do we run a jib sheet through a genoa car?

... and "Genoa Car" distinguishes them from "Traveler Car"
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