O'Day 30 Swing Keel Rigging - SailNet Community
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post #1 of 14 Old 11-23-2009 Thread Starter
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O'Day 30 Swing Keel Rigging

New to sailing I decided to start with a small boat. I have figured out the sailing part although finer points I am still learning. The boat has a swing keel and to raise / lower there is a line that runs across the cabin back to the cockpit. Raising the keel requires considerable effort, there are no blocks, winches, etc... just a rope and a cleat. Is this normal? I suspect that there should be a couple blocks or some arrangement so as to not risk breaking your back to pull up the keel.

The other possibility is that there is something binding inside the keel.

When the boat was hauled out and surveyed the keel looked fine.

The family really enjoys the boat and she is beautiful.

Any help is appreciated.
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post #2 of 14 Old 11-23-2009
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Rusty welcome to the "net"! I've a O30 but deep keel not CB. I beleive the swing K is "neutral balance" rudy at D&R marine dot com should know the answer.

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post #3 of 14 Old 11-23-2009 Thread Starter
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Thank-you Denise,

I will call D&R tomorrow. If it is true that it is neutral then there is an issue with the rope and cable assembly. Someone mentioned that perhaps the wrong knot was tied last and it is too fat, thus it binds.

This would make sense as when I untie the line from the cleat, some time later I will hear a clunk as, I assume the swing keel falls down.
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post #4 of 14 Old 11-23-2009
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or critters and barnacles?

"Next best thing to not having a boat? The knowledge from having one!" Denise, Bristol PA, On Tidal Delaware River, Anchor Yacht Club.
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post #5 of 14 Old 11-24-2009
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Oday 30 swing keel

I have the centerboard version of the Oday 30, too. It is not weighted, but it is not neutral buoyancy, either, and can use a little help in terms of mechanical advantage to lift it. When I bought the boat several years ago, it had a 2:1 tackle on the cabin top to give additional purchase, and wasn't too hard to raise, but sometime later, since I was adding self-tailing cabin top winches for spinnaker halyards anyway, I ran the tail through a clutch and then to the starboard cabin top winch. Now raising the board is really easy. Here's a picture of the centerboard:



On the same subject, be careful about using a Nicopress fitting on the bottom of the centerboard pendant. After having to replace it every 6-8 months, I suddenly realized it was acting as sacrificial anode, and being eaten away just like a zinc. Next time I replace it, I'm going to try a stainless fork.
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post #6 of 14 Old 02-12-2011 Thread Starter
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O'Day 30 Swing Keel Rigging

Hello,

The swing keel on my O'Day 30 simply has a line coming up out of the cabin roof, through a cheek block and then directly to the cockpit. The line is cleated off at the top of the cabin near the companion way. This arrangement provides no mechanical advantage of pulleys and blocks and I must pull with an enormous amount of force to retract the keel (both feet on cabin). Does anyone have a diagram they could send me of how this is supposed to be rigged or could you describe? Any help is appreciated before I break my neck or back slipping at some point.
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post #7 of 14 Old 02-13-2011
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rusty contact Rudy of D&R marine.com he was the Oday parts manager and more back in the day.

"Next best thing to not having a boat? The knowledge from having one!" Denise, Bristol PA, On Tidal Delaware River, Anchor Yacht Club.
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post #8 of 14 Old 03-14-2011
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The line from the centerboard ends in a shackle attached to the dead end of a block. A line anchored on the deck loops through the block, back to a cleat next to the anchor point, making for a 2/1 purchase.
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post #9 of 14 Old 04-12-2011 Thread Starter
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wescarroll,

Thanks. This makes sense and will rig accordingly. Called Rudy at D&R and he indicated that it should not require such effort to lift. The swing keel weighs about 300 lbs but due to position should not be so difficult to lift.
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post #10 of 14 Old 08-17-2011 Thread Starter
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wescarroll,

I finally added the block and rigged as you suggested and it works perfect.

Thanks
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