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Selecting adequate standing rigging for a homebuil

Posted By: dilis

Selecting adequate standing rigging for a homebuil - 09/10/08 02:01 PM

This should probably be in the classifieds, but I'm also looking for some advice as well as looking to buy. I'm looking for a used mast and sails close to these dimensions for a stitch and glue cat I'm building. The designers specs are:

Boat
Total beam = 14.76 feet,
LOA/LWL = 29.5 feet
Weight CWL = 3907 lbs.

Mast
Spar length of 35.0 feet
Boom length of 14.5 feet.
Spreader 2.58 feet from tip to center of mast

Sails
Foresail area = 10 meters squared.
Luff = 27.47 feet
Foot = 9.87 feet
Leach = 23.7 feet

Mainsail area = 30 meters squared.
Luff = 32.33 feet
Foot = 12.65 feet
Leach = 32.5 feet


So I'd appreciate a little advice on the correct standing rigging for a cat appropriate for non-competative sailing. If you have for sale a used sail, standing and running rigging that might be a good match, please contact me. If you have something close in dimensions to the sail or standing rigging, tell me and I'll consult with the designer if that will work. The mast will be lowered and raised once a sailing season and stored on dry land off season, if it matters.

This is probably a typical newbie inquiry, but I'm a new ASA basic keelboat certified retiree who want to transition into cat sailing.

Thanks in advance,
Dilis
Posted By: Kevin Cook

Re: Selecting adequate standing rigging for a homebuil - 09/12/08 07:12 PM

Dilis,
Without doing calculations my guess would be 1/4 inch 1x19 wire for standing rigging or, if you go with synthetic standing rigging, 5/16 dyneema or vectran. For your mast, recommend you go check out a local rigging shop in your area. They usually have a stack of old spar extrusions they will sell for cheap. For instance I bought a 38 foot tube of 7.75 x 4.5 section for $200 from Annapolis Spars. E-bay is also a good source of used spars but getting a mast shipped is a problem. good luck,
Kevin
Posted By: lesburn1

Re: Selecting adequate standing rigging for a homebuil - 12/05/08 04:16 PM

For standing rigging you can use this spread sheet to calc. your loads.

http://www.boatdesign.net/forums/at...9399121-sail-loads-sail-aerodynamics.xls
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