[C320-list] UK Halsey Mast Centering Method

[Allan S. Field]

The port list on Sea Shadow finally is gone as of just this past weekend
when I did the biannual haulout for painting the bottom.  I lightly sanded
the white boot stripe and then raised the waterline by painting over the
white boot stripe.  I got tired of scraping barnacles and scum off the white
boot stripe on the port side while the starboard side remained clear an inch
below the waterline.  Problem solved?  We'll see in 2 years!

Allan S. Field
Sea Shadow - #808
Columbia, MD

-----Original Message-----
From: c320-list-bounces at lists.catalina320.com
[mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of pat reynolds
Sent: Tuesday, June 09, 2009 2:14 PM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] UK Halsey Mast Centering Method


so was lazarus or so we thought :)

--- On Tue, 6/9/09, Jeff Church <jc387 at att.net> wrote:

> From: Jeff Church <jc387 at att.net>
> Subject: Re: [C320-list] UK Halsey Mast Centering Method
> To: C320-List at Catalina320.com
> Date: Tuesday, June 9, 2009, 10:57 AM
> Irv,
> 
> I know this sounds far-fetched, but after I started
> compensating by 
> about 3/4" the port list (or was it starboard?) was cured.
> 
> JeffC
> 
> 
> 
> Irving Grunes wrote:
> > UK Halsey has a video on centering a mast. It uses a
> person in a bosuns
> > chair with a tape just above the seat. Then moving
> from side to side placing
> > a matching tape on each shroud.  Then its a short
> measurement from the tape
> > to the deck on each side to determine mast
> straightness.
> >
> > This presupposes that the halyard exits the mast at
> its center.
> >
> > >From the UK reply below, the answer was that there
> is insignificant
> > difference if halyard does not exit from the center.
> >
> > What correction should be made to compensate for
> the  2 inch or so offset
> > that I think the C320 main halyard has from the mast
> centerline.
> >
> > Irv Grunes
> > #851
> >
> > ---------- Forwarded message ----------
> > From: Butch Ulmer <Butch at ukhalsey.com>
> > Date: Tue, Jun 9, 2009 at 11:17 AM
> > Subject: Re: UK-Halsey 'Contact Us' Email from: Irv
> Grunes
> > To: igrunes at gmail.com
> >
> >
> > It does not compensate for a difference such as you
> described however, I
> > suspect that the differential would be so small as to
> be insignificant.
> >
> > Charles "Butch" Ulmer
> > UK-Halsey International
> > 175 City Island Ave.
> > Bronx, NY 10464
> > Tel: 718-885-2028
> > Fax: 718-885-9236
> >
> >
> >
> > On Jun 4, 2009, at 5:53 PM, <igrunes at gmail.com>
> <igrunes at gmail.com>
> wrote:
> >
> > Re video-Center mast over the boat using a bosun chair
> and tape. Usually the
> > Halyard does not exit the mast at its center but from
> a sheave on one side
> > or the other. How does one compensate for that
> difference? The video was
> > excellent in that the system of measurement quite
> simple and accurate. Irv
> > Grunes
> >   
>