[Alberg30] tunning, shroud tension

[George Dinwiddie]

What is this guideline based on?  It seems like other parts of
the boat should also be considered.  For example, if you just
upgraded the rigging to heavier wire, would you want to increase
the tension?  Does stronger wire mean the rigging should be
tighter than than if weaker wire is used?

It seems to me that this guideline makes a lot of assumptions
about the boat's design and construction.  The Alberg 30 has
relatively heavy rigging compared to other boats its size.

 - George

> Brian and Elaine Timmins said:
> 
>From my Loos Instructions, 1/4" wire breaking strength is 8200
>lbs and 3/16" is 4700 lbs. Additionally, Loos recommends 1/4"
>forestay set to 1300 lbs, 1/4" shrouds set to 850 lbs, and 3/16
>shrouds set to 500 lbs.
>
>   From: Dave Terrell 
> 
> >How do these numbers fit with the general guidelne that shrouds
> >should be tensioned between 10 and 12% of the breaking strength
> >the wire? This is what the instructions for my Loos tension guide
> >said and that has been my guideline in the past. That worked on my
> >old boat, a CAL 27 T-2. If the application of the rule to my "new"
> >Alberg 30 is different, I would like to know. I appreciate having
> >this source of informatioin avaliable.

-- 
 ----------------------------------------------------------------------
  George Dinwiddie                             gdinwiddie at alberg30.org
  The gods do not deduct from man's allotted span those hours spent in
  sailing.                                    http://www.Alberg30.org/
 ----------------------------------------------------------------------

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