Rig Tuning Specs

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J

Jeff H.

I have a Catalina 27 tall rig shich needs tuning but I have been unable to obtain the specifications. I,m hoping someone can point me in the right direction. Thanks
 
J

Jim Huhta, Sr.

Rigging requirements

I have a Cat 27 tall rig we recently purchased, and asked the local boatyard(an excellent one) to tune the standing rigging "moderate to medium". We did not want alot of stress or torque on on rigging as it is in excellent shape and we are not gonna race this year.. They do it by FEEL, and I guess the are experienced enuf to do it that way. I too tried to get the specs, but was unable to find a source. I should think that Catalina the Manufacturer would be able to privide it to you. There are gauges to determine the tension on the shrouds and stays, but one has to know the values needed. Hope this helps.
 
J

Jeff H.

Thanks Jim, still looking

Thanks Jim I have contacted the manufacturer to no avail. I have the gauge but need the values
 
D

Don

Check out this site.

It has a rather humorus take on tuning but has some good info. No one can give you the right specs because no two boats are just alike. Differences are weight, and weight distribution, sail size, split back-stay, roller furling, and most of all, the skippers preference. A lot of tune is by trial and error. In a nutshell, you want to start with how much weather helm you have. Adjusting this with mast rake will change all your rigging. In light air, you should have neutral or slight weather helm, but not lee helm. As the wind increases, the weather helm will increase. The mast should be centered. Use the main halyard to check for equal distance to the deck. The mast should be straight side to side. Fore and aft, it should be straight or bend slightly aft above the spreader. Go sailing on a day with moderate wind where you can get about 15 degrees heal when close hauled. The helm should be moderate, head stay sag about 4-5 inches. The leeward shrouds should be visably loose, but not flopping around. Fore and aft, the mast should bend slightly aft above the spreaders. Side to side, the mast should be straight or bend slightly to leeward above the spreaders. When you get it where you like it, measure with a Loos gauge and record the readings. That way, if you have to drop the mast or change a stay, you can always go back to your old settings without doing all the rigging over again.
 
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