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 Catalina 25 Specific Forum
 Question's on tuning the mask		  New Topic  Topic Locked
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Greg S
Deckhand

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14 Posts
Initially Posted - 09/13/2007 :  17:34:38  Show Profile
I am in the process of tuning the mast on my Catalina 25.
I need to know how much tension the forestay, backstay, and shrouds should have. The backstay has the tension adjustment system.
I need help for this is my first time.

Thanks,
Greg
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stampeder
Master Marine Consultant

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1608 Posts
Response Posted - 09/13/2007 :  20:52:13  Show Profile
to start: 1" of deflection on all standing rigging.

After you've got everything snug and the mast is straight. Sail it for a while until you are comfortable with fine tuning, such as raked mast, or soft forestay/backstay.

I've had mine for 3 years and keep shrouds tight, and leave forestay and backstay loose.
It is generally thought here on the forum that a loos gauge is not necesary.
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Dave Bristle
Master Marine Consultant

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Djibouti
10005 Posts
Response Posted - 09/13/2007 :  20:59:59  Show Profile
Here's the bible: http://www.catalina-capri-25s.org/tech/tech25/snkmast.asp
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jerlim
Master Marine Consultant

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USA
1484 Posts
Response Posted - 09/14/2007 :  18:50:57  Show Profile
I'm a BIG believer in the gauge...
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Frank Hopper
Past Commodore

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Pitcairn Island
6776 Posts
Response Posted - 09/14/2007 :  21:14:08  Show Profile  Visit Frank Hopper's Homepage
I always use a Loos but I am absolutely confidant that I could tune a good safe rig without one. The loos is for uniformity but the pluck sets the tension. I run a tight rig, uppers 23, forward lowers 18, and aft lowers finger tight. My backstay adjuster is primarily to tension the forestay, now that I have a furler I start with the forestay fairly tight so my adjuster doesn't do much. I do not use the loos on the forestay nor Backstay.
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.