[C320-list] Older C320 Isomat Boom and Single Line Reef Setup

[Dave Hupe]

The page 12 diagram in the C320 link from Doug  says "tied off inside boom"  for the lower part of the rear line; however, the lower part of that line on my boat actually extends out of the lower rear plate of the boom (a hole)  and is tied off in a stopper knot.  The Isomat drawing shows it with the stopper knot.  I think the Isomat drawing shows this all better (and shows the setup for multiple reef lines).
Dave Hupe1994 C320 (#32)Holland, MI

Sent from Yahoo Mail on Android 
 
  On Fri, May 15, 2020 at 2:52 PM, Doug Treff<doug at treff.us> wrote:   The reefing line is designed to run as diagrammed on page 12 of the PDF document located here:
https://c320.org/mediagallery/download.php?mid=20170327180451608

I redid mine a few years ago, using Jeff Hare's idea of adding ball-bearing blocks on the reef points. The car that runs inside the boom was missing so I made a new one using a couple of ball-bearing blocks shackled together.

This new setup is smooth as silk and requires almost no effort to reef down.

Here's the article I wrote up a few years ago describing what I did. Unfortunately, the photos have been lost.

https://groups.google.com/forum/embed/?place=forum/C320-List&showsearch=true&showtabs=true&showpopout=true&parenturl=https%3A%2F%2Fc320.org%2Fpage.php%2F_IA_C320_Forum#!searchin/C320-List/treff$20reefing/c320-list/uf-zKAf4LZ0/IbobjenQvHUJ

--
Doug Treff
doug at treff.us


> > On May 13, 2020, at 9:24 AM, Dave Hupe <hoopdtwo at yahoo.com> wrote:
> > 
> > I've just figured out that the C320 Standard Mast (and Boom) Handbook available on the association site does not really cover my boom and the reefing setup.  
> > I saw a sticker on my mast that said made by Isomat, Inc. After further googling, I found this reference http://forums.sailinganarchy.com/index.php?/topic/153130-isomat-single-line-reefing/
> > The diagram in the link is spot on for how my single line reefing system is setup (such as with upper and lower forward sheaves at the boom front, the stopper knot at the aft end, and external line routing). 
> > Hope this helps other "older" boat owners.  
> > Dave Hupe
> > 1994 C320 (#32) "Mayan Sun"
> > Holland, MI