CD30 Mainsheet Problem

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Bill Gold

CD30 Mainsheet Problem

Post by Bill Gold »

I'd like to do something to improve the mainsheet rigging on my CD30. The problem is that I can't sheet in when going to weather or even when reaching. To sheet in, I have to head up to the point of luffing. That releases enough pressure so that I can pull in the mainsheet, and then fall off. When sailing off the wind, the mainsheet eases the boom just fine.

The mainsheet is tied off on the starboard side of the deck, then winds through two double blocks, one on the boom and the other on deck, then to a fairlead on the port side deck and back to a winch and camcleat on the cabin roof. The blocks are positioned near the middle of the boom, probably closer to the mast than to the rear of the boom.

I'm thinking of replacing a shackle on one of the blocks with a swivel shackle to avoid the twist on that block/shackle. Next time I'm in Portland, I'll visit a marina where there is another CD30 and look at their rigging. Maybe the blocks are too far forward to get the leverage needed?

Any other thoughts?

Thanks.

Bill Gold
CD30 Seraphim
St. Helens, OR



billgold@hotmail.com
sam

Re: CD30 Mainsheet Problem

Post by sam »

Your blocks may have a lot of friction. Harken blocks run a lot easier than most. Also the Harken Hexrachet device used on small sailing dinghies is often very handy for heavy wind situations.
D. Stump, Hanalei

Re: CD30 Mainsheet Problem

Post by D. Stump, Hanalei »

Bill,

It sounds to me that you may have the main sheet rove through the blocks incorrectly. If you have the original CD-30 manual, it shows the proper route to follow when rigging the two blocks. The drawing IS very small and difficult to follow, I had to do it a couple of times and finally resorted to a magnifying glass to follow the route properly. If rigged correctly, you shouldn't have to luff up to trim the main sheet! If you don't have the manual, let me know here and I'll copy the section of the manual that applies and send it to you.

Dave Stump
Captain Commanding
Hanalei CD-30
D. Stump, Hanalei

Re: CD30, Cradle

Post by D. Stump, Hanalei »

D. Stump, Hanalei wrote: Bill,
While writing to you about your mainsheet problem, it dawned on me that you might have a cradle for your CD-30. I need to build one for Hanalei this fall, but I can't find anyone with one that would measure it for me, make a small drawing or take a picture of it so that I can build one. If possible could you do this. I'd be glad to pay for your expenses. Let me know here, thanks....
D. Stump, Hanalei wrote: Dave Stump
Captain Commanding
Hanalei CD-30
Duane Yoslov

Re: CD30 Mainsheet Problem

Post by Duane Yoslov »

Bill,

I had similar difficulty sheeting in on our center boom main sheet on a CD330. My solution was to up the purchase from 4:1 to 6:1 by adding a double block on the center bail and a triple block with a becket on the traveler. It worked wonderfully and we do not even need to use the winch in 30kt.+ wind! Give it a shot...you will need a longer main sheet though.

Duane Yoslov
Mystic
Cape Dory 330
hull #142
Bill Gold wrote: I'd like to do something to improve the mainsheet rigging on my CD30. The problem is that I can't sheet in when going to weather or even when reaching. To sheet in, I have to head up to the point of luffing. That releases enough pressure so that I can pull in the mainsheet, and then fall off. When sailing off the wind, the mainsheet eases the boom just fine.

The mainsheet is tied off on the starboard side of the deck, then winds through two double blocks, one on the boom and the other on deck, then to a fairlead on the port side deck and back to a winch and camcleat on the cabin roof. The blocks are positioned near the middle of the boom, probably closer to the mast than to the rear of the boom.

I'm thinking of replacing a shackle on one of the blocks with a swivel shackle to avoid the twist on that block/shackle. Next time I'm in Portland, I'll visit a marina where there is another CD30 and look at their rigging. Maybe the blocks are too far forward to get the leverage needed?

Any other thoughts?

Thanks.

Bill Gold
CD30 Seraphim
St. Helens, OR


yoslovd@aol.com
Jon Larson

Re: CD30, Cradle

Post by Jon Larson »

Dave,

For many years PERI was stored for the winter supported by five proppets, one for the bow and two on each side of the boat. The proppets were held in place by a chain run under the keel as well as gravity. The wise dockmaster in the yacht club I kept PERI in swore that proppets were far superior to a cradle that could rot over time, etc. I'd really suggest looking into a set rather than trying to build a cradle that fits or genning up some wooden props at haul time.

Jon Larson
D. Stump, Hanalei wrote:
D. Stump, Hanalei wrote: Bill,
While writing to you about your mainsheet problem, it dawned on me that you might have a cradle for your CD-30. I need to build one for Hanalei this fall, but I can't find anyone with one that would measure it for me, make a small drawing or take a picture of it so that I can build one. If possible could you do this. I'd be glad to pay for your expenses. Let me know here, thanks....
D. Stump, Hanalei wrote: Dave Stump
Captain Commanding
Hanalei CD-30


jon9@ix.netcom.com
Bill Gold

Re: CD30, Cradle

Post by Bill Gold »

Dave, I don't have a cradle, sorry, and don't feel qualified to design one. However, I did solve the original mainsheet problem by purchasing a swivel fitting and installed it between the traveler u-fitting and the block. Works great. Thanks. Bill

D. Stump, Hanalei wrote:
D. Stump, Hanalei wrote: Bill,
While writing to you about your mainsheet problem, it dawned on me that you might have a cradle for your CD-30. I need to build one for Hanalei this fall, but I can't find anyone with one that would measure it for me, make a small drawing or take a picture of it so that I can build one. If possible could you do this. I'd be glad to pay for your expenses. Let me know here, thanks....
D. Stump, Hanalei wrote: Dave Stump
Captain Commanding
Hanalei CD-30


billgold@hotmail.com
Bill Gold

Re: CD30 Mainsheet Problem

Post by Bill Gold »

Dave,
I checked the routing of the mainsheet, and it looks good. I bought a swivel fitting and inserted it between the block and the u-fitting on the traveler. Works great now.
Thanks.
Bill

D. Stump, Hanalei wrote: Bill,

It sounds to me that you may have the main sheet rove through the blocks incorrectly. If you have the original CD-30 manual, it shows the proper route to follow when rigging the two blocks. The drawing IS very small and difficult to follow, I had to do it a couple of times and finally resorted to a magnifying glass to follow the route properly. If rigged correctly, you shouldn't have to luff up to trim the main sheet! If you don't have the manual, let me know here and I'll copy the section of the manual that applies and send it to you.

Dave Stump
Captain Commanding
Hanalei CD-30


billgold@hotmail.com
Bill Gold

Re: CD30 Mainsheet Problem

Post by Bill Gold »

Sam, the friction came from the twisting of the blocks. I solved it by inserting a swivel fitting between the block and the u-fitting on the traveler. Thanks.
Bill

sam wrote: Your blocks may have a lot of friction. Harken blocks run a lot easier than most. Also the Harken Hexrachet device used on small sailing dinghies is often very handy for heavy wind situations.


billgold@hotmail.com
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