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Go Back   SailNet Community > On Board > Gear & Maintenance > Standing rigging- Doing it myself
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Thread: Standing rigging- Doing it myself Reply to Thread
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Topic Review (Newest First)
06-30-2011 08:32 PM
sailor50 Thanks for the correction, I got my metal M words confused!
06-30-2011 05:35 PM
donradclife I have rerigged with riggingonly.com, and was very happy with their prices and service. I used the Hayn fittings, and they were quite easy to assemble. The whole project took me less than 8 hours with the mast(66ft) down. It would take more time to replace things one a time while the mast is up, but you can diy if you can talk your wife into assisting you...
06-30-2011 02:58 PM
MarkSF
Quote:
Originally Posted by sailor50 View Post
Sta-Loc Fittings.

Most standing rigging wire used today is type 316. Lesser numbers 302, etc., have more monel and are more costly, used in the aircraft industry, construction, etc.
No Stainless Steel contains any Monel. It does contain Molybdenum. 316 is preferred in a marine environment to 302 and 304 because of it's increased corrosion resistance. Tensile strength of 316 is slightly less (I found 580 MPa for 316 vs. 600 for 302 at one manufacturer, 10% difference for wire at McMasterCarr). The important consideration is that 316 will have greater tensile strength after a number of years as it will be less corroded. My understanding is that rigging failure is usually some kind of stress-corrosion fracture at a fitting so 316 should help reduce the likelihood of that.

I also looked up 308, and 316 again has slightly lower tensile strength but better corrosion resistance.

I looked up the raw cost of 302, 304, and 316 wire at McMasterCarr and 316 is the most expensive, so use of 316 can't be put down to money-saving efforts.

I think 316 is the best for the job. I'm not sure the reduction in strength of 10% justifies an increase in size unless it was considered undersized to start with. Some boats are considered to have had undersized rigging from the factory. I think the C27 was one.
06-30-2011 02:52 PM
sailingkiko
spreaders irwin 32.5 cc

hi i need help i just bought a a irwin 32.5 and its missing the spreaders can somebody give me the messurements and maybe a picture would be nice help please
06-30-2011 12:38 PM
sailingkiko where is the best place to buy it an ship it to mexico, thanks for your help and by the way do you know where to buy a set of spreaders to fit my boat thanks again
06-30-2011 12:13 PM
mitiempo Buy bulk wire of the right size. Install spreaders. Get a local rigger to swage the upper ends or use Hayn Hi-Mods which are easy to use and will not require a rigger. Leave them long and hold the mast up temporarily with 4 lines and the rigging attached to the mast. Get it in column. Do the lower ends one at a time with Hayn Hi-Mods.
06-30-2011 07:17 AM
sailingkiko i just bought a 73 irwin 32.5 that needs a complete Restoration and is missing the standing rigging and the spreaders i am in puerto vallarta mexico living aboard. i want to do all the work myself any idea on the cheapest way to go....
05-16-2010 05:13 PM
mitiempo I'd do as suggested and order a bit overlong with swages for the top end and use mechanical for the bottom end. The mechanical fittings (Sta-Lok, Hayn, etc) are easy to use. I wouldn't oversize unless changing every fitting, on mast as well as possibly the chainplates. Rigging should be set up to about 20% of its max working load and larger wire will have more loads. More load and a drilled out fitting with less meat around the hole is a bad combination.
05-16-2010 04:17 PM
sailor50 As for tools, you'll need a drill (if you are going to upsize with lubricant), spray for stuck pins, wire cutters on deck, tape measure, silicone or 5200, wrenches, pliers. Also if you do this while the mast is up you need a way to hold the tang compression tubes from falling through the mast while you are aloft and a whole lot of stuff. Good luck to you!
05-16-2010 03:46 PM
donlofland I was able to drop the ?33-35' deck stepped mast on my boat at the dock and bring it home with a dinghy trailor-not a walk in the park, but once home, reinstalling new standing rigging on the mast was a breeze.

I went with a local swaging company, Seattle area, for simplicity.

But if I had to do it again, unless I was replacing only one shroud, (which unfortunately I do have to do since I bent a stud when it caught in the companionway as we were cranking the mast back to vertical again), I would bring the mast down.

It would probably even be worth the cost of crane time, and even so it sounds like you would save $ compared to hiring a rigger.
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