Main sheet rigging advice.

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Main sheet rigging advice.

Postby amedaius » Wed Oct 23, 2024 9:27 pm

I recently picked up a Daysailer(1969), and rigged it as it was set up to with the triangle "traveler" which is part of the main sheet, which works quite well and I don't really have a problem with. The issue I had was actually concerning the little electric outboard I was using, which even with the telescoping handle all the way in, still managed to foul that triangle traveler portion of the main sheet when the boom was swung out either direction. I am somewhat torn between going to the mid-boom rigging or attaching an outboard bracket. I do know how to attach the bracket, the mid boom rigging I am unsure of although I doubt it would be terribly hard to figure out.

If anyone else has experienced a similar issue, I would be very interested in your story and how you managed to resolve it. Overall I am pretty pleased with the little boat, but getting the main sheet wrapped or tucked in the outboard made sailing it a bit hectic, and the wind was inconsistent enough (lake winds are always surprising at the worst times) I didn't feel comfortable just taking down the outboard once I was underway.
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Re: Main sheet rigging advice.

Postby GreenLake » Thu Oct 24, 2024 12:11 pm

Welcome to the forum!

I've been sailing happily with different electric motors and the kind of triangle rig you mention.

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There's a small difference in my setup in that the triangle is separate from the mainsheet and has a block through which the mainsheet runs. I tie the bottom middle of the triangle to a hook underneath the transom coaming (click on the image to enlarge). That centers the block on the triangle and unlike a triangle formed by the mainsheet, it's height is also fixed.

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The effect is a slightly different angle of pull when the boom is sheeted in, which helps in sail trim and that's why I did the upgrade, but it does not prevent the mainsheet from risk of getting entangled, whether with the motor, the stern cleats or a corner of the stern. What does make a difference is to pull in the main while gybing. That tends to prevent any issues, because there's not as much loose mainsheet hanging at the back.

As I approach a gybe, I pull the mainsheet taught which helps bring the boom to center position. At that point, I do the gybe and as the boom comes around, I let out the mainsheet in a controlled movement. Not only is that the proper technique, as I understand it, but it does prevent the main from getting entangled.

For the most part, that solves the issue for me. I often grab the mainsheet below the boom for that instead of pulling it through the mainsheet swivel.

Tacking upwind, there's usually so little slack in the main that no special attention is needed.

The top picture actually shows the motor placed rather awkwardly. It would need to be rotated 90 degrees CCW to be deployed anyway, and that would move the operating lever out of the way. But as you can see, my setup is relatively tolerant.

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Aft boom sheeting has its advantages. The sheeting angles are just a bit better than with center boom sheeting (and even better if you upgrade to a fixed triangle). Another advantage, in my view, is that it is really easy to fit a ratchet block.

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I like that particular model of ratchet block in its "auto" setting. It runs free, if lightly loaded, but will resist the pull of the main when under tension (from wind and you pulling at the free end). It allows me to hold the main in my hand in most conditions, particularly going upwind in gusts, and I now rarely use the cleat. It's easier to release the main to respond to a gust and less chance that a gust will cause a capsize.

To complete the rigging, I installed a 12:1 boom vang. This is strong enough to use upwind and prevents the boom from rising as you ease the mainsheet. That prevents your sail from changing shape and becoming full, which would power it up. That would be the opposite of what you need in a gust and therefore you'll find that you get more control in stronger winds with a vang. Made a noticeable difference for me.

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For racing it means I can hold my own in stronger winds, and for cruising it's an extra safety factor if the wind picks up and lets me postpone reefing if the gusts are only occasional.

That said, the choice of rigging tends to be highly personal. The DaySailer is a bit unusual in that even if you plan on racing it, the class rules are not restricting you from doing it your way. That has led to all sorts of interesting setups. I started out where you are and did a few upgrades along the way. I'm now pretty happy with my setup.
~ green ~ lake ~ ~
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Re: Main sheet rigging advice.

Postby amedaius » Thu Oct 24, 2024 3:26 pm

Looks like the "upgraded triangle" would definitely cut down on issues, but not completely eliminate them. Looks like something I could rig up just to test it, I'm sure I have an extra block laying around somewhere. The photos are pretty clear and excellently labeled, thanks a bunch!

It's kinda a shame, I actually like the original setup, and I am sure that in more steady winds where I could swing the outboard completely out of the way it would function perfectly. I'd really rather not have a bracket hanging off my transom if I can avoid it.
amedaius
 
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Re: Main sheet rigging advice.

Postby GreenLake » Fri Oct 25, 2024 5:38 am

Remember to use the main to pull in the boom for gybing as well, that does two things. It cuts down on the swing, so the boom doesn't crash all the way forward on the other side, and it takes the slack out so nothing tangles. Win win.

As for the rigging updates, good luck feeling your way towards something that works for you.

There is nothing particularly "sacred" about the original setup. I've sailed with it, but all the upgrades I've made since have yielded noticeable improvements, so "I'm not going back" to quote a current slogan.
~ green ~ lake ~ ~
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