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Locating the 150 Genoa Cars

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NuNees
Navigator

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USA
125 Posts

Initially Posted - 08/20/2003 : 22:57:00

I need some advice on trimming the genoa...where do I set thee cars? Does it depend on the force of the wind? Does it depend on the amount of the sail that is pulled from the furler? Does it depend on if I'm on a beat, a reach or a run? Thank you.

Bill jaworowski,
Moonbeams.
C25 SK/SR #4953
Sailing Lake Carlyle, IL.

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frich
Captain

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USA
418 Posts

Response Posted - 08/21/2003 : 07:43:27

Bill

I am no expert on where to set these, but I can recommend a book sold at West Marine for about $20. It is called Sail Trim, it is a white paperback written by a sweedish guy. I think his name is Ivan something or other.

Sorry for the sketchy details I dont have the book handy at this time, but there are plenty of details and pictures.

Frank R
84 C25 SK

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Steve Shetter
1st Mate

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USA
60 Posts

Response Posted - 08/21/2003 : 09:14:08

There is a pretty good explanation (although very brief) of the car placement for head sails in Chapman's. The section explains the method of utilizing the power that sails can draw form the wind and I learned a lot from it.

Good luck,

Steve Shetter
"At Last"
#2381

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Bill Holcomb
Admiral

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769 Posts

Response Posted - 08/21/2003 : 13:21:00

Hi Bill,

The answers to your questions will help you fine tune the jibsail. For just basic sailing where performance may not be tops on your list, don't worry about these suggestions.

However, for fine tuning: Start out adjusting the lead blocks for upwind sailing. This starting is to have the angle made at the clew of the jib by the foot and leech bisected by a line extended onto the jib from the jib sheet. Some sailors actually use a "magic marker" to mark the angle resulting from bisecting the clew. That way it is easy to look forward along the jib sheet and see if the angle at the clew is close to OK.

As the wind builds in strength, a good tip is to move the lead blocks aft two or three holes. This puts extra tension on the foot of the sail and allows the top 1/3 to twist off in the puffs, thereby depowering the sail.

If you have roller furled the sail partially, the lead block almost surely needs to be moved forward to maintain a proper sheeting angle.

Finally, it's not a bad idea to move the leads forward from your upwind position a few holes for reaching and running. This move will make the jib more powerful and help it pull the boat forward more efficiently.

Bill Holcomb - C25 Snickerdoodle #4839

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RichardG
Admiral

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USA
990 Posts

Response Posted - 08/22/2003 : 13:33:49

Before I learned the "bottom, break, back" rule, all I knew about genoa car placement was move it back when the wind picks up. But I didn't know where they should start. This rule helped greatly in letting me know about where the cars should start out.

It requires telltales near the luff of the jib (mine has three). Head on a close reach in medium wind with all telltales streaming. Turn slowly into the wind while watching the telltales. If the bottom one breaks first, move the car back. If the top one breaks first (like mine was), move the car forward. Then repeat the test until all telltales break simultaneously.

I found my cars were way too far back. I took me three "tests", moving the cars forward each time, to get it right.

I'm certainly no expert, but learning this simple rule seemed to help me greatly get more power from my jib.

Here's a couple links for more details --

http://www.ullmansails.com/ ("Trim and Technique")

http://pacificasarisaristore.com/vhosts/santana3030/speed_tips.htm

Edited by - RichardG on 08/22/2003 14:26:20

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matsche
Captain

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USA
280 Posts

Response Posted - 08/22/2003 : 20:01:13

Richard:

Thanks. I need to improve my ability to read those wiggly little indicators until it becomes second nature. The link was great.

John Matsche 1985 TR/FK #5171

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NuNees
Navigator

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USA
125 Posts

Response Posted - 08/24/2003 : 22:24:39

Frich, Steve, Bill H, Richard G,
Thank all of you for the tips. We're headed over for the Labor Day weekend... will work them through. I'll let you know how ew make out. Hopefully there will be good winds.

Thanks again.

Bill jaworowski,
Moonbeams.
C25 SK/SR #4953
Sailing Lake Carlyle, IL.

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SEA DOG
Deckhand

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USA
19 Posts

Response Posted - 08/31/2003 : 14:36:58

Set the cars at the Genoa winches,then work 1 or 2 notches either way.

Seadog FK/TR 4232

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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.