CAl 2-27 Standing Rigging Tension - SailNet Community

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  #1  
Old 07-11-2009
Mr Baggins
 
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CAl 2-27 Standing Rigging Tension

I recently noticed when sailing up wind and close hauled that my leeward Lower shrouds sag on both tacks. I know that my rig needs to be tight and I have ordered a Loos PT2 to do the job and maintain the rig. Can anyone tell me the best method of:
  • Addressing the loose Shrouds and optimizing the rig
  • What are the normally accepted tensions on the uppers and lowers
  • How to effectively get to the happy state of a tight rig.
I know that my performance is being affected by this as well as presenting uneccessary risks to the standing rigging. I have tightened to address some sag but the rig I believe is still not right.

Boat has roller furled 130% genoa
Adjustable backstay

Any suggestions/lessons and teachings will be absorbed like a sponge

Thanks
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Old 07-11-2009
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SEMIJim will become famous soon enough SEMIJim will become famous soon enough
Here's your answer: http://tinyurl.com/nlm8u9

Also recommend Ivar Dedekam's Sail and Rig Tuning.

Jim

Last edited by SEMIJim; 07-11-2009 at 01:42 PM.
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Old 07-12-2009
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sailingfool will become famous soon enough
The right tension results in "just a little slack" when beating, if the leeward rigging is sloopy, tighten both sides a turn and try again. keep the mast track straight.

you can get fancy with aLoos guage, but the above remains the right answer.
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Old 07-13-2009
Mr Baggins
 
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Thanks to all for the replies. I have played with the rig previously and was concerned this time that I messed it up. The mast is 100% verticle up and down measured from the mast head to a measured spot on both Port and Stb rails. I have a slight rake back, Inners and Outers are tight. I need the gauge I think to make sure that they are balanced on both sides. I dont have the experience, or access to a rigger to make sure that the rig is just so, hence the question here

I guess that its playtime. I will be checking her out on both tacks tonight! Never was a chore so pleasant :-)

Thanks again to all!
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Old 07-13-2009
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All you need to know about balance you can see by sighting up the masttrack, first static which tells you whether you have equal tension on each side, then dynamic, which tells you both whether you have the appropriate additional tension on the uppers relative to intermediates, and whether the tension is adequate to keep the mast in column.
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Last edited by sailingfool; 07-13-2009 at 03:40 PM.
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Old 07-13-2009
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I shall certainly be using the advice recieved here.

After some searching it does actually seems to be a common question.

Thanks
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Old 07-17-2009
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Thanks to all for the advice. I have 'Tuned' the standing rig to something that appears close. Sailing on both tacks resulted in a better experience, Shrouds dont sag and the old lady sails much sweeter. I find that sail trim is better and i can actually maintain that happy state longer.

Now to keep it that way !

Advice Appreciated !
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