[C320-list] rigging

[Stan]

Hi Jeff,

If I shake the forestay I get about 10" of movement.

Stan
"Our Little Amusement" #744


On 9/1/06, Jeff Church <jjemail at comcast.net> wrote:
>
> Stan,
>
> I agree. I just don't think THAT much sag is necessary. Do you have as
> much
> sag as Yeager recommends?
>
> Jeff
> ----- Original Message -----
> From: "Stan" <ola7442000 at gmail.com>
> To: "C320-List" <c320-list at catalina320.com>
> Sent: Friday, September 01, 2006 9:41 AM
> Subject: Re: [C320-list] rigging
>
>
> >I have to respond to the sagging forestay.  I have experimented and yes
> in
> > light winds (2-6 Kts.)  I can sail somewhat faster and definetly higher
> > with
> > a sagging forestay.  I know this doesn't make a lot of difference unless
> > your racing.  I've think/feel there is a noticable diffeence going
> > downwind
> > but the wind and seas vary too much to quantify actual improvements.
> >
> > Stan
> > "Our Little Amusement" #744
> >
> >
> > On 9/1/06, Jeff Church <jjemail at comcast.net> wrote:
> >>
> >> Bruce,
> >>
> >> > >The manual does not discuss pre-bend, does everyone tune for
> straigt?
> >> Our masts are very stiff and don't allow for much pre-bend, but if you
> >> adjust the forward lower shrouds tighter than the aft lowers you can
> >> encourage a little mast bend when you haul in the backstay adjuster.
> >>
> >> > >It also says that you can adjust for 0 to 1 percent rake....
> >> I think the manual calls for 1 degree of rake. I've tried 1 degree of
> >> rake
> >> and had a bit too much weather helm, so I reduced the rake to just
> about
> >> zero. You can get a rough idea how much rake you have if you hang
> >> something
> >> heavy from the main halyard and use it as a plumb bob. You'll have 1
> >> degree
> >> of rake if there is an 8 inch space between the back of the mast and
> the
> >> halyard, at the base of the mast.
> >>
> >> >> The backstay seems very tight and very dificult to get installed.
> >> I added a 2" eye jaw toggle to the backstay.
> >> http://schaeferhardware.com//SearchResult.aspx?CategoryID=223
> >>
> >> The C320 manual gives you the basic instructions for centering the
> mast,
> >> and
> >> you can get some good info from Mark Yeager's Rig Tune and Sail
> Selection
> >> article on the C320 site.
> >> http://www.catalina320.com/article.php/20040828173431380
> >> I disagree with one of Yeager's points related to rig tuning. He
> suggests
> >> adding a toggle to lengthen the forestay instead of the backstay. He
> says
> >> this will give you more mast rake, but the length of the forward lowers
> >> limits the maximum amount of rake to about 1 degree. At that point the
> >> forestay is no where near the end of its adjustment, so why add a
> toggle?
> >>
> >> Yeager has another curious suggestion. He says that you should be able
> to
> >> swing the forestay in a 1 foot diameter circle. I've got my rig
> adjusted
> >> for
> >> the amount of forestay sag that he suggests, and I haven't found a
> single
> >> point of sail or wind condition where easing the backstay adjuster all
> >> the
> >> way off and letting the forestay sag that much yields better boat
> speed.
> >> My
> >> sailmaker agrees. He checked the rig when he delivered new sails and
> said
> >> that the forestay is too loose. Also, unless you have a very long
> >> backstay
> >> adjuster (mine is limited by the height of the bimini) you'll have
> >> difficulty getting enough forestay tension. You might try for half the
> >> sag
> >> that Yeager calls for.
> >>
> >> I hope that helps.
> >>
> >> JeffC
> >>
> >>
> >> ----- Original Message -----
> >> From: <bruceheyman at cox.net>
> >> To: "C320-List" <c320-list at catalina320.com>
> >> Sent: Thursday, August 31, 2006 6:02 PM
> >> Subject: [C320-list] rigging
> >>
> >>
> >> > I'll be tuning the rig tomorrow for the first time.
> >> >
> >> > The manual does not discuss pre-bend, does everyone tune for straigt?
> >> >
> >> > It also says that you can adjust for 0 to 1 percent rake.  What does
> >> > everyone recommend.  We want a little weather helm.  Also I assume
> that
> >> 1
> >> > percent means the head of the mast will be 1 percent of the spars
> >> > length
> >> > back from vertical.
> >> >
> >> > The backstay seems very tight and very dificult to get installed.
> >> > Since
> >> > it is adjustable I expected that it would be floppy when
> released.  Any
> >> > advice?
> >> >
> >> > Any other tips or lesons learned would be much appretiated.
> >> >
> >> > Bruce
> >> > Somerset 671 So Cal
> >> > Sent via BlackBerry from Cingular Wireless
>
>
>


-- 
Stan
C320 "Our Little Amusement" #744
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