[C320-list] UK Halsey Mast Centering Method

[Jeff Church]

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
>