[C320-list] Reefing Block inside boom

[Irv Grunes]

On 2001 Isle of Wight #851 the boom is rigged with a single sliding block
with a becket and it is connected to the outhaul.
The line runs from the sheave on the forward end of the boom, around the
sliding block, back to a fixed block in the forward section of the boom and
is tied off to the shackle of the sliding block.  Then a line is run from
the becket to the clew of the mainsail for outhaul control.  This gives a
3:1 mechanical advantage for the outhaul.

It doesn't make sense to me to try to use this system for reefing in any way


The reefing line on IOW goes from a block at port side base of the mast, up
thru a block at the luff reefing cringle, down to a sheave at the forward
end of the boom, straight thru the boom to the sheave at the aft end of the
boom, up thru a block at the leech reefing cringle and is tied off at the
strap shackle at the bottom of the boom under the main clew.

We put a sharpie mark on the main halyard, and to reef the main, go head to
wind, drop the main to the sharpie mark on the halyard, lock the halyard
rope clutch and haul in on the reefing line.
We have no second reef line on our boat, but I would run the same kind of
line on the starboard side of the boom.  There is a messenger line on IOW to
the starboard sheaves on the boom.  I don't know if I would add blocks to
the second reef cringles because of the added weight to them main that high
up on the sail.  Maybe at the luff but not at the leech.

Irv Grunes
Isle Of Wight #851




-----Original Message-----
From: c320-list-bounces at catalina320.com
[mailto:c320-list-bounces at catalina320.com]On Behalf Of David J Gleason
Sent: Monday, June 25, 2007 4:09 PM
To: c320-list at catalina320.com
Cc: c320-list at catalina320.com
Subject: Re: [C320-list] Reefing Block inside boom


Bill:

One way to check to see if the other reef has the block inside the boom
is to see if there is a knot protruding at the aft end of the boom.  As I
recall, the line was knotted at the end of the boom, then extended to the
block and then up to the reefing cringle and back down to the boom it
self.  Another way would be with the sail flaked on the boom, pull on the
reef line at one end of the boom and see if you get the same amount of
travel in the line at the other end.

Dave Gleason
Proud Mary, #150

On Sun, 24 Jun 2007 09:30:27 -0700 "Bill Sloane"
<southsoundbill at gmail.com> writes:
> I used an electrician's snake sucessfully yesterday to feed my first
> reefing
> line through the boom. I pulled the internal pulley inside the boom
> out the
> back end of the boom, looped the line through it and snaked it back
> to the
> mast end. Mission accomplished, my first reefing line works.
>
> What I can't figure out is whether the second reefing line is set up
> the
> same way with an double pulley block inside the boom.  It does not
> appear so
> as reefing to the second point requires much more force to pull the
> sail
> down.  If this is not the case, it seems that it might be a good
> idea, if
> there is enough room inside the boom for both pulley blocks.  Has
> anyone set
> up their second reef point like that?
>
> Bill
>
> C-320 No. 554
> Olympia   WA
>
>
> On 5/27/07, Bill Sloane <southsoundbill at gmail.com> wrote:
> >
> > Thanks Irv,  that's a great idea.  I know at least one
> electrician.
> >
> > Bill.
> >
> >
> >  On 5/27/07, Irv Grunes <igrunes at comcast.net> wrote:
> > >
> > > Bill,
> > > An electricians snake should so the job. Find an electrician and
> borrow
> > > one
> > > or rent it.
> > > I don't know of any electrician that would not be happy to go on
> a
> > > sailboat
> > > ride for the day.
> > > Irv grunes
> > > #851
> > >
> > > -----Original Message-----
> > > From: c320-list-bounces at catalina320.com
> > > [mailto: c320-list-bounces at catalina320.com]On Behalf Of Bill
> Sloane
> > > Sent: Sunday, May 27, 2007 12:24 PM
> > > To: c320-list at catalina320.com
> > > Subject: [C320-list] Reefing Block inside boom
> > >
> > >
> > > I am trying to reassemble my new (to me) Catalina 320, after
> dismantling
> > > the
> > > boat to get it trucked from Lake Tahoe to Puget Sound.  My '98
> boat has
> > > first and second reefing points. Are there two (2) reefing
> blocks inside
> > > the
> > > boom, one for each reefing point?  I found one block with a
> single line
> > > coming from the second reefing point. My first reefing line
> pulled out
> > > at
> > > the mast end of the boom. How does one get the line all the way
> through
> > > the
> > > boom?  I was thinking of safety pinning it to my outhaul rope,
> which is
> > > the
> > > only rope I can see that goes all the way through.
> > >
> > > Been sailing anyway without functioning reefing lines, which is
> not a
> > > great
> > > idea but I couldn't help my self.
> > >
> > > Bill
> > > Olympia  WA
> > > Hull 554.
> > >
> > >
> > >
> > >
> >
>
>