Santana 25 Rigging Specs needed
- Thread starter Peter Hammond
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- santana 25 rigging
I'm assuming that you've got nothing to work with. As far as gage of the Stainless 1X19 wire, you could look at another 25' boat and use what it has. The forces and safety factors are fairly standard. I'm sure there are tables. Lengths are more of a problem. Stainless wire isn't cheap so you don't want to cut and regret. I found your boat on sailboatdata.com. There are two versions but the link following is for one:
http://sailboatdata.com/viewrecord.asp?class_id=576
On this page, next to the heading "Rig and Sail Particulars" there is a link "Key." If you follow it you get an example of how to calculate rig dimensions. It is for a different boat but it's a start. You may want to consider using Stalock or other fittings on the deck side of standing rigging since they can be done at the boat whereas custom standing rigging is usually done in a shop with a swaging machine. They are not adjustable. Normally they work off the existing standing rigging. A professional rigger can probably calculate the lengths and hit it the first time. As a DIY'er you may ruin some otherwise good wire. I would think you would need to erect the mast with temporary standing rigging, set the rake of the mast, center the mast, tension the rigging, and then actually measure the lengths. Of course, you'll need to compensate for the length of the fittings and turnbuckles at the deck ends. Not that hard but takes some attention to detail. You would probably then take the mast down, and re-erec it to rig with the new wire. It's a job. The professional rigger may not look that expensive considering putting the mast up and down several times.
Even if you found the specs somewhere I would be wary of the accuracy.
It looks like a fun boat. Good luck.
http://sailboatdata.com/viewrecord.asp?class_id=576
On this page, next to the heading "Rig and Sail Particulars" there is a link "Key." If you follow it you get an example of how to calculate rig dimensions. It is for a different boat but it's a start. You may want to consider using Stalock or other fittings on the deck side of standing rigging since they can be done at the boat whereas custom standing rigging is usually done in a shop with a swaging machine. They are not adjustable. Normally they work off the existing standing rigging. A professional rigger can probably calculate the lengths and hit it the first time. As a DIY'er you may ruin some otherwise good wire. I would think you would need to erect the mast with temporary standing rigging, set the rake of the mast, center the mast, tension the rigging, and then actually measure the lengths. Of course, you'll need to compensate for the length of the fittings and turnbuckles at the deck ends. Not that hard but takes some attention to detail. You would probably then take the mast down, and re-erec it to rig with the new wire. It's a job. The professional rigger may not look that expensive considering putting the mast up and down several times.
Even if you found the specs somewhere I would be wary of the accuracy.
It looks like a fun boat. Good luck.
Thank you very much Shemander.
She is a Santana 25-1. I haven't had any luck getting specs from W.D Schocke. The designer was only there for a short while. I have the rigging and have Stepped the mast. It is the tensions to set that I'm trying to find. Do you think that I should just make them as tight as I'm used to on other boats. I have a tension gauge. Thanks, SV Kwetah.
Tension is a lot easier. It is a function of the wire size. So measure the wires. Find a table of SS 1X19 wire strengths and tension to about 25% of that. A question for the forum is whether you use breaking strength, yield strength etc.
Look at a tuning guide - not necessarily specific to your boat - to see how to tune the rig. Forestay length will be important. I think that is on the sailboat data page.
Look at a tuning guide - not necessarily specific to your boat - to see how to tune the rig. Forestay length will be important. I think that is on the sailboat data page.