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Catalina/Capri 25/250 Sailor's Forums

Catalina 25 Specific Forum

running rigging / standing rigging sizes

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dmpilc
Master Marine Consultant

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USA
4593 Posts

Initially Posted - 03/09/2007 : 21:25:49

Some time ago, I thought I saw a posting of the sizes of the various rigging components, shroud diameters, sheet sizes, halyard sizes etc, for a C-25, but I can't find the posting. It was a great list. does anyone else remember seeing it? By whom and when?
I'm primarily interested at this time in replacing my main sheet. I was thinking of using 3/8" line; I know the old one is a larger diameter, probably 1/2". Anyone out there use 3/8?

DavidP
1975 C-22 SK #5459 "Shadowfax" Fleet 52
PO of 1984 C-25 SK/TR #4142 "Recess"
Percy Priest Yacht Club, Hamilton Creek Marina, Nashville, TN

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Steve Milby
Past Commodore

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USA
5932 Posts

Response Posted - 03/10/2007 : 06:20:16

3/8" is ample for the mainsheet. Some people use a smaller, lighter weight mainsheet in light air.

Size matters very much in running rigging. Oversized line is generally stiffer, heavier, thicker, and, when running downwind, it can sag into the water. It also doesn't run through the blocks as smoothly as properly sized line. On my present boat, I've had to replace oversized lines used in the running rigging, because the devices didn't work as they should.

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Frank Hopper
Past Commodore

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Pitcairn Island
6776 Posts

Response Posted - 03/10/2007 : 08:04:22

Hi David, cruise the Manuals & Brochures area of this site. Everything is there, I clicked on every picture link (pictures from manuals) and saved them to my computer.

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Leon Sisson
Master Marine Consultant

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USA
1893 Posts

Response Posted - 03/10/2007 : 09:17:41

David,

I agree with Steve and Frank. I have 3/8" sheets, and a spare set of 5/16" light air sheets. 3/8" is easy on the hands, 5/16" runs smoother. To determine length, just measure the longest path the mainsheet needs to handle: block to block with boom riding a bit high and touching aft lowers, x ratio (3:1 or 4:1), plus several more feet for splices, knots, and a tail.

There's a lot of useful info on this website, so if you haven't done so, mouse around and explore. Many of the large makers and sellers of rigging supplies have helpful guidelines and advice on their websites to help you decide which product to buy. (Odd how then never seem to suggest anything they don't sell...

) Try Harken, New England Ropes, West Marine and others.

-- Leon S.

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dmpilc
Master Marine Consultant

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USA
4593 Posts

Response Posted - 03/10/2007 : 10:52:39

Thanks everyone, I was hoping 3/8" would suffice.
David

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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.