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Is it legal...

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Prospector
Master Marine Consultant

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Canada
3159 Posts

Initially Posted - 10/03/2008 : 14:46:42

So on our lake in mixed fleet PHRF racing there is one other Catalina 25. I got advice from him that you can make the boats point higher if you tie a line to the end of the boom, and then tie it on the windward cleat, pulling the boom over to windward.

It makes sense that doing this would give you an advantage sailing close hauled, however, I also know that class rules prevent you from having a traveller that is longer than stock, and this is effectively using the cleat as a traveller.

If you use the cleat to pull your boom over, can you be protested under class rules? What about PHRF?

If this is legal, why not buy an extra pair of pulleys and put them on the jib tracks? You could use them as your traveller rather than the stock one.

Incidentally, the other boat only showed up for a couple races this season, and I beat him cleanly. He may not be a race fan so much as a cruiser looking for a little extra pointing ability.

"Iris"
1984 FK/SR #4040
http://frosthaus.blogspot.com/

Take a minute to register your boat with the association!!
http://www.catalina-capri-25s.org/owner_questionnaire.htm

Edited by - on

Dave Bristle
Master Marine Consultant

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Djibouti
10005 Posts

Response Posted - 10/03/2008 : 22:09:54

That's kind of an anti-traveler! Good luck to him.

Edited by - on

JimB517
Past Commodore

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USA
3285 Posts

Response Posted - 10/17/2008 : 10:43:58

I've tried this. As you know, you can't ease the mainsheet for twist and get the boom on centerline for pointing with the stock traveller. I often hold the boom up by hand. I tried tieing it up once and it seems to work. Beware you can't tack fast with this setup.

You can't be protested for this in PHRF because our class rules don't apply.

You can do the same thing with the jib, it is called a barberhauler.

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Champipple
Master Marine Consultant

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USA
6855 Posts

Response Posted - 10/18/2008 : 14:10:47

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by JimB517
 

You can't be protested for this in PHRF because our class rules don't apply.

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

Generally true - but read your local phrf rules. Some localities consider your boats rating to be in Class rule trim and deviation will cost you points.

Additionally, If it is not a permanent fixture it is essentially a barber hauler and this associations class rules do not address utilization of such a device.

Edited by - on

Steve Milby
Past Commodore

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USA
5909 Posts

Response Posted - 10/22/2008 : 08:44:32

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by Prospector
 So on our lake in mixed fleet PHRF racing there is one other Catalina 25. I got advice from him that you can make the boats point higher if you tie a line to the end of the boom, and then tie it on the windward cleat, pulling the boom over to windward.

It makes sense that doing this would give you an advantage sailing close hauled....<hr height="1" noshade id="quote"></blockquote id="quote">
I'm not sure it would make the boat point any higher. You certainly couldn't benefit by it in strong winds, because in that case, the boat will already be overpowered and heeling excessively, and you'll be easing the mainsail to leeward in strong winds, not pulling it even further to windward.

In moderate to light winds, the shape of your jib is fixed by the way that it is cut and sewn together. You can flatten it or deepen it to a certain extent by adjusting the halliard and sheet, but there isn't much range of adjustability. On our boats, the jib is cut and shaped so that it's optimal angle of attack is approximately 45 deg. If you try to point any higher, the jib's efficiency declines. The mainsail and jib are interrelated. If you are able to pull your boom further to windward, so that the mainsail forces the stern to leeward, enabling the boat to point a little higher, your jib will begin to lose power, because it'll be pinching. As the jib loses power, the boat's apparent wind will decline, and consequently, the boat's pointing ability will decline even further. This is especially true in light air, because, in order to maximize the boat's light air speed and pointing ability, you need to ease the jibsheet, and keep the jib full and powerful. If the mainsail is overtrimmed to windward, the result will be that the boat will be pointing so high that the jib will be luffing.

I also experimented with it a few times, but never found conditions in which the benefit justified the bother.

Edited by - Steve Milby on 10/22/2008 10:09:21

millermg
Navigator

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159 Posts

Response Posted - 10/22/2008 : 16:20:38

There are 2 ways I've found to depower the main on a c-25. 1) Keep the boom centerline and ease the sheet and vang to twist the sail and spill wind. This, as pointed out, is tough to do with the limited traveller, although another method is to use your topping lift to ease the leech tension. 2) Is much more effective- harden the vang and ease the sheet, taking the boom off centerline. The vang simulates having a traveller with more range, and keeps a bit of leech tension, which for the same amount of heel directs the power more efficiently in the forward direction.

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