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 Catalina/Capri 25/250 Sailor's Forums
 Catalina 25 Specific Forum
 Symmetrical Spinnaker Rigging		  New Topic  Topic Locked
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hewebb
Admiral

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USA
761 Posts
Initially Posted - 12/17/2015 :  04:52:26  Show Profile
This past summer I added an asymmetrical spinnaker to the boat. Now I have purchased a symmetrical one. (to good of a deal to pass up) I have begin ordering stuff to fly it. I am thinking I can get away without a down-haul. However I have not yet come to a decision on rigging the topping lift for it. I am thinking I will just mount a block to the face of the mast between the masthead and the spreaders which will keep the lines outside of the mast. The line will run from the pole up to the block then down the mast to a block at the base of the mast the through the organizer to a cam cleat on the cabin top. It will be the same one as I use for the asymmetrical tack line. At the cabin top forward of the winches, there is no more room to add any more hardware between the pop top and the handrails. I had initially thought that I would run the topping lift line through the mast but I already have two lines coming out of the mast on each side at the base. I think it would get to crowded to add another one to one side. I am using ratchet blocks for the sheets at the stern.

Any thoughts?
1988 WK/SR w/inboard diesel Joe Pool Lake
Hobie 18 Lake Worth



Life is not a dress rehearsal. You will not get another chance.

dasreboot
Admiral

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803 Posts
Response Posted - 12/17/2015 :  06:35:27  Show Profile  Visit dasreboot's Homepage
The po for my boat ran everything through the mast including the topping lift. I have not , however run it back to the cockpit as it is easier to set up the pole if i have access to it on the bow. I have not rigged a downhaul yet, but i have purchased the block for it and will use it next year. The angle of the sheet is not enough of a downward pull to keep the pole from skying without the downhaul. If you run the extra guys to the pole, and the blocks are far enough forward, they can serve enough to replace the downhaul.
Todd Lewis
Eowyn 87 TR/WK C25 #5656
ARWEN 84 TR/SK C25 #4031
www.mainsailsailingschool.com
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Bill Holcomb
Admiral

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USA
769 Posts
Response Posted - 12/17/2015 :  08:46:08  Show Profile
Here is the link to the parts catalog that shows the factory setup for a spinnaker.
http://catalina-capri-25s.org/manbro/pictures/pc22.gif

Bill Holcomb - C25 Snickerdoodle #4839
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awetmore
Master Marine Consultant

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USA
1144 Posts
Response Posted - 12/17/2015 :  11:16:31  Show Profile
You need a downhaul and a topping lift. The pole will just fly up without the downhaul.

I use the same physical line for my asym tack line and my downhaul. The only additional rigging for the downhaul is a block at the base of my mast and a snap shackle block (Garhauer makes cheap/good ones) that is used to give me 2:1 purchase when configured as the downhaul.

My topping lift is rigged as you described.

My boat's symmetric spinnaker is about 900sqft, so close to double the size of a C-25 one, and a 2:1 downhaul and 1:1 topping lift is sufficient.

Ratchet blocks aren't strong enough for the guy on a symmetric spinnaker. There is a lot of load on the guy when the pole is forward (for reaching). You should use non-ratchet blocks at the stern when flying the symmetric spinnaker.
Alex W
Seattle, WA
Express 37 "re-Quest"
previously owned 1984 Catalina 25 "Lutra"
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hewebb
Admiral

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USA
761 Posts
Response Posted - 12/18/2015 :  05:03:45  Show Profile
Thanks all. I will add a downhaul. I noticed in the photo of the rigging that they ran lines along side of the cabin back to the cockpit. I had not thought of doing that to get more lines back.
1988 WK/SR w/inboard diesel Joe Pool Lake
Hobie 18 Lake Worth



Life is not a dress rehearsal. You will not get another chance.
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awetmore
Master Marine Consultant

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USA
1144 Posts
Response Posted - 12/18/2015 :  12:55:19  Show Profile
If you go look at race boats in your marina you'll find that it is common to double end the downhaul and run it back along both sides of the cabin top (on the side). This allows it to be adjusted when crew is sitting on the rail from either rail, so that the guy can be adjusted.
Alex W
Seattle, WA
Express 37 "re-Quest"
previously owned 1984 Catalina 25 "Lutra"
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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.